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Total questions: 232
Worksheet time: 5hrs 14mins
What happens in the stage labeled "process 2"?
From left to right, what is the sequence of the complementary strand of DNA in this molecule?
If a sequence of DNA reads AGTGGGTCT, for what sequence of amino acids does it code?
NUCLEOTIDES ARE THE BUILDING BLOCKS OF...
CARBOHYDRATES
LIPIDS
NUCLEIC ACIDS
PROTEINS
AMINO ACIDS ARE THE BUILDING BLOCKS OF...
CARBHYDRATES
LIPIDS
NUCLEIC ACIDS
PROTEINS
FATTY ACIDS AND GLYCEROL ARE THE BUILDING BLOCKS OF..
CARBOHYDRATES
LIPIDS
NUCLEIC ACIDS
PROTEINS
WHAT ELEMENTS DO ALL BIOMOLECULES (LIPIDS, PROTEINS, NUCLEIC ACIDS, CARBS) HAVE IN COMMON?
CARBON, HYDROGEN, FLOURINE
CARBON, HYDROGEN, CHLORINE
CARBON, HYDROGEN, IODINE
CARBON, HYDROGEN, OXYGEN
WHICH BIOMOLECULES STORES LONG-TERM ENERGY?
PROTEIN
CARBS
LIPIDS
NUCLEIC ACIDS
This cell is a -
PROKARYOTIC
PLANT
ANIMAL
PROTIST
WHAT ELEMENT DO AMINO ACIDS AND NUCLEOTIDES HAVE THAT THE OTHERS DO NOT HAVE?
PHOSPHATE
NITROGEN
CARBON
OXYGEN
What do viruses have in common with living cells? They both...
store genetic information
have chloroplasts
use glucose for cellular respiration
have endoplasmic reticulum
Which viral life cycle kills its host cell by lysing (exploding)?
lytic
mitosis
lysogenic
S phase
STRUCTURE: What Nitrogenous Base does RNA contain that DNA does not?
Thymine
Uracil
Adenine
Love
HISTORY: Rosalind Franklin used x-ray crystallography to determine that the shape of the DNA molecule is:
a cloverleaf
a braided rope
a pleated sheet
a twisted ladder
STRUCTURE: Nucleotides monomers are made up of a sugar, a phosphate, and a:
nitrogenous base
nucleic acid
cholesterol
fatty acid
GENERAL: What kind of organic molecule is DNA?
Protein
Nucleic Acid
Lipid
Carbohydrate
PROCESSES: DNA making RNA is called:
Translation
Transcription
Transference
Translocation
PROCESSES: RNA making a protein is called:
Transmutation
Transferrance
Transcription
Translation
TRANSCRIPTION: What is the complementary mRNA base sequence for: CAGTTCCAG
GUCAAGGUC
GTGAAGGTC
TRANSLATION:
Translation occurs in the:
office
cytoplasm
nucleus
cell membrane
Uncontrolled cell division which usually leads to tumors and disease is called:
Metaphase
Cytokinesis
Cancer
Diabetes
The correct sequence of mitosis:
metaphase, anaphase, telophase, prophase
prophase, metaphase, anaphase, telophase
prophase, anaphase, metaphase, telophase
telophase, metaphase, prophase, anaphase
Having only one copy of each chromsome
haploid
diploid
triploid
octoploid
You can learn a lot from a GIF.
Check the products (things that are made) during photosynthesis. There are two:
oxygen
carbon dioxide
glucose (sugar)
water
sunlight
There are levels of organization we use to talk about what our bodies are made of. Select the correct order of the four levels below from least to most complex:
cells → organs → tissues → organ systems
organ systems → organs → tissues → cells
tissues → organs → cells → organ systems
cells → tissues → organs → organ systems
The cladogram shows the evolution of land plants as indicated by fossil records.
Which discovery would challenge the validity of this cladogram?
A large aquatic vascular plant about 200 million years old
A species of algae that has existed for less than one million years
A moss species that has existed for less than 380 million years
A fossil of a fern more than 425 million years old
Scientists estimate that there are more than 20,000 species of ants. The species range in size from 1 mm long to 38 mm long and live in most environments. The diets of ants range from flowers and seeds to fluids from their own larvae. Ants have been able to successfully inhabit so many different environments because their populations have been able to --
hybridize with other species of insects
adapt to a variety of habitats and food sources
fill niches usually occupied by mammals
occupy habitats that have no other life-forms
Two populations of mice living in the same forest are separated by a large water-filled ditch. After a rainstorm, flooding brings several mice from one population to the other population. When the mice from the first population reproduce with members of the second population, which of the following will likely occur?
All of the offspring will die as a result of reproductive mutations.
The offspring will be forced to leave the second population.
The offspring will be genetically identical to their parent from the first population.
The offspring in the second population will have greater genetic variety.
The picture shows bean-shaped glands called nodes. The clusters of cells in the nodes include macrophages that break down viruses and other potentially harmful materials. Nodes also contain cells that produce protein particles capable of capturing harmful materials that flow in tissue fluid through the nodes. Different parts of the body are drained by nodes in different regions of the body.
Which body systems are directly responsible for regulating these nodes and protecting the body from harmful materials in tissue fluid?
Immune and lymphatic systems
Digestive and nervous systems
Endocrine and digestive systems
Circulatory and nervous systems
Organisms are classified today using the Linnaean system, and the following table shows the taxonomic classification of two marine organisms living along the Pacific Coast.
Taxonomic classification is important to marine biologists because it provides a way to -
prove that marine evolution occurs
discover and name every marine organism on Earth
designate Latin as the universal language of marine biology
identify marine organisms and find evolutionary relationships between them
When a person is suddenly cut by a sharp object, a nervous impulse is sent along a sensory neuron to the spinal cord. The impulse is immediately transmitted through motor neurons to produce a response. Which of the following correctly identifies and describes this response?
It is a conditioned response that occurs only to prevent injury.
It is a learned response that does not occur in infants and small children.
It is a reflex response that causes various muscles to contract in order to move away from the object.
It is a voluntary response that is initiated only after the impulse has been carried to the relevant area in the brain.
A student conducted an investigation to study phototropism in grasses. The only difference between the control group and the experimental group was the light conditions. The control group was provided full light, while the experimental group was shaded on one side. The diagrams show the average heights and positions of blades of grass in the investigation. (View Image)
Which statement best explains why the grass tips of the experimental group bent toward the light?
Water evaporated faster on the side of the plant having full light.
Light sensors in the grass tips simulated a hormone in the shoot system.
The xylem in the roots system absorbed more nutrients from the shaded side.
The side facing the light has greater chance of absorbing carbon dioxide from the atmosphere.
Part of an important cellular process involving a DNA strand is modeled in the image. (View image)
What is the purpose of this cellular process?
Preserving genetic information for future generations
Deleting the information in the sequence produced from the DNA template
Transcribing information in the DNA sequence for use by the cell
Producing more nucleotides for the DNA sequence
The energy pyramid shows the energy made available by producers. (View Image)
Base on the energy flow between trophic levels in an energy pyramid, how much energy would be expected to be found at the secondary consumer level in this pyramid?
100 joules
500 joules
1,000 joules
50 joules
Nitrogenous bases are located on both strands of the DNA double helix. What is the significance of the nitrogenous bases?
The number of adenines and cytosines determines the type of RNA that will be produced.
The order of nitrogenous bases determines the order of amino acids in the proteins synthesized.
The amount of thymine and guanine in the DNA molecules determines the length of the genes.
The type of hydrogen bonding between the nitrogenous bases determines which amino acid will be added to the peptide chain.
Oncogenes are mutated forms of genes. Oncogenes can transform a cell into a tumor cell. Some tumor cells are benign, while others are malignant. How does the presence of an oncogene lead to the formation of a tumor?
ATP Production is inhibited.
Cell division is unregulated.
Somatic cell growth is inhibited.
Antibody Activity is unregulated.
Some students used vinegar to dissolve away the shells of three eggs and used the eggs as models of human red blood cells. The students observed the changes in the eggs when they were placed in different solutions. (View Image)
Which statement best describes the role of the cell membrane in this model?
The cell membrane is an impermeable barrier that prevents water from entering the cell.
The cell membrane allows solutes to enter the cell, which causes the cell to shrink.
The cell membrane allows water to enter and leave the cell.
The cell membrane removes solutes from the environment.
Viruses can be transmitted through air, water, food, insect bites, and direct skin contact. Once a virus gains entry to the body, it invades a host cell in order to --
deactivate the host cell's defences
synthesize antibodies for defence
metabolize host proteins and grow
access cellular processes for replication
The diagram shows cells in different phases of mitosis. A student is trying to find a cell in a particular phase of mitosis. The student is looking for evidence that spindle fibers are separating the chromosomes to ensure that each new nucleus has one copy of each chromosome. (View Image)
Which cell is in the phase of mitosis that the student is searching for?
Cell 1
Cell 2
Cell 3
Cell 4
Albinism is an autosomal recessive condition. Which circle graph shows the genotype probability when an albino female mates with a male that is heterozygous for the albinism trait? (View Image)
F
G
H
J
The complex carbohydrates pictured (View Image) are made by linking molecules of glucose.
In all three complex carbohydrates, the subunits of glucose are bonded together differently. Because they have different structures, they most likely --
contain different chemical elements
form different proteins
carry different nucleotides
perform different functions
Photosynthesis and cellular respiration both involve the use and release of gases. Which statement correctly identifies the role of gases in the two processes?
Photosynthesis and cellular respiration both use carbon dioxide and release oxygen.
Photosynthesis and cellular respiration both use oxygen and release carbon dioxide.
Cellular respiration uses oxygen and releases carbon dioxide, while photosynthesis uses carbon dioxide and releases oxygen.
Cellular respiration uses carbon dioxide and releases oxygen, while photosynthesis uses oxygen and releases carbon dioxide.
The diagram represents one way an enzyme can be inhibited. (View Image)
Which statement explains the effect of an inhibitor on an enzyme?
A substrate will be able to bond with the enzyme.
The enzyme will likely be attacked by immune cells.
The enzyme will be unable to produce more enzymes.
A substrate will be unable to attach to the enzyme.
Four common relationships between organisms are listed in the box. (View Image)
Which statements best describe these relationships?
Relationships 1 and 4 are examples of mutualism.
Relationship 2 is an example of commensalism.
Relationship 3 is an example of parasitism.
Relationships 1, 2, and 4 are examples of mutualism.
Relationship 3 is an example of parasitism.
Having a standard taxonomic system benefits the scientific community by allowing scientists
from all over the world to do which of the following?
Have a common system for the classification of locations containing fossils
Use a similar system to classify the impact of removing species from ecosystems
Have a common understanding in the classification of organisms
Understand how other scientists classify predator–prey relationships
Some organisms have genes that improve their ability to survive and reproduce. If the genes
also help their offspring survive and reproduce, then which of the following will most likely
increase?
The frequency of the genes in one individual
The frequency of the genes in the population
The number of genes in one chromosome
The number of genes in the species
The concept of gene flow is demonstrated when a cow is driven off from its herd, joins
another herd, and reproduces. When the cow contributes to the gene pool of the new herd,
which of these most likely increases?
Natural selection
Genetic variation
Environmental fitness
Reproductive mutations
Zoogeographic regions are characterized by the presence of specific groups of animals. These
regions are determined by the taxonomic or phylogenetic relationships of animals. The map
shows the zoogeographic regions proposed by the naturalist Alfred Russel Wallace in 1876.The similarities of organisms in which two areas numbered above provide the best evidence
for common ancestry between the organisms in both locations?
1 and 2
3 and 4
5 and 6
7 and 8
Arthropods are joint-legged animals. Spiders, crabs, pill bugs, centipedes, and millipedes
are examples of the many types of arthropods. Which of these arthropods are most closely
related?
Arthropods of the same family
Arthropods of the same class
Arthropods of the same genus
Arthropods of the same species
Bactrian camels, dromedaries, llamas, and alpacas are all members of the same taxonomic family, Camelidae. Members of this family all have two toes, no hooves, true canine teeth, and a split upper lip. The family Camelidae originated in North America. The physical features of animals in this family and the family’s geographical origin provide evidence that all these animals —
live in the same type of ecosystem
have slowly evolved to become herbivores
have a common ancestor
exchanged DNA at some point in the past
A prey population consists of individuals with a variety of running speeds. The adaptation that allows some of these animals to run fast would be an example of natural selection if it helps them —
survive and undergo mutations in their DNA
lower the mortality rates of the population
produce offspring that run at average speeds
reproduce and increase the frequency of their genes in the population
Scientists can determine relatedness among organisms by comparing partial amino acid
sequences. The table shows four partial amino acid sequences from four organisms.Which organism is the LEAST related to the other three organisms?
Organism 1
Organism 2
Organism 3
Organism 4
A student used a microscope to study four members of the phylum Ciliophora. Members of
this phylum move when propelled by hundreds of tiny cilia.Although these organisms belong to the same phylum, they are classified as different —
families
species
kingdoms
orders
The gray squirrel, Eastern fox squirrel, and red squirrel are all different species of squirrels.
Why is having a scientific name for each species of an organism important?
To prevent existing named organisms from having their names changed as they become
extinct
To keep the classification system from being altered as new organisms are discovered
To allow organisms to be placed in many classification levels at the same time
To standardize the naming and organization of organisms to avoid confusion
The diagram shows light- and dark-colored beetles that live on a tree.Which result is most likely to occur to the beetle population due to predation over time?
The number of light-colored beetles in the population will increase.
There will be more dark-colored beetles than light-colored beetles.
The number of light-colored beetles will decrease.
The dark-colored beetles will move to a different type of tree.
Niles Eldredge and Stephen Jay Gould researched the lenses of the eyes of fossil trilobites of
different species. In 1972 they published a paper in which they described the tendency of a
species to remain the same until a sudden change in the environment causes a new related
species to appear.
Which hypothesis was most challenged by the work of Eldredge and Gould?
Redi’s hypothesis that spontaneous generation does not occur
Haeckel’s hypothesis that embryological development mimics the evolution of species
Wallace’s hypothesis that geography affects the distribution of species
Darwin’s hypothesis that the development of species is a slow, gradual process
The relationships among different orders of millipedes are shown in the cladogram.Based on this cladogram, which statement best describes relationships among millipede
orders?
Stemmiulida is more closely related to Merocheta than Penicillata is to Merocheta.
Spirostreptida is more closely related to Glomerida than Sphaerotheriida is to Glomerida.
Polyzoniida is more closely related to Glomeridesmida than Sphaerotheriida is to
Glomeridesmida.
Merocheta is more closely related to Glomeridesmida than Glomerida is to
Glomeridesmida.
This diagram shows cell activity across a cell membrane. Which two processes does the model best represent?
Energy conversion and making new molecules
Synthesis of new molecules and homeostasis
Transport of molecules and energy conversions
Transport of molecules and homeostasis
Which statement best describes the role of the vesicles in this image?
They deliver packages from the Golgi apparatus
They exchange genetic material
They are extracting viruses from the Golgi apparatus
They are transports for gas exchange only
Which of these correctly compliments the following DNA strand during replication: AGGTCA
UCCAGU
TCCAGT
ACCAGU
TGGAGT
What part of a DNA molecule is directly responsible for coding a specific trait in an organism?
the number of hydrogen bonds in the DNA
the number of carbons in DNA
the sequence of nucleotide bases in DNA
the sequence of phosphates along the backbone
In which phase of the cell cycle is DNA replicated?
Mitosis
G1 phase
G2 phase
S phase
What do the 2 arrows represent in this diagram?
arrow 1 is prophase; arrow 2 is interphase
arrow 1 is mitosis; arrow 2 is meiosis
arrow 1 is interphase; arrow 2 is mitosis
arrow 1 is meiosis; arrow 2 is prophase
During the cell cycle, cells go through checkpoints. If DNA damaged is detected, it is repaired before mitosis. Why is repairing DNA important?
so the spindle fibers and centrioles will work correctly during division
so chromosomes will align correctly during metaphase
so the cytoplasm can be divided equally during cytokinesis
so healthy daughter cells are produced and can continue to grow
Which of these describes a difference between a virus and a cell?
cells contain protein, viruses only contain carbohydrates
viruses have flagella, cells have cilia
cells reproduce independently, viruses require a host cell to replicate
viruses have a protein membrane, cells have membranes made of nucleic acids
Viruses can be transmitted by air, food, water and direct contact. Once a virus enters a body, it invades a cell immediately to-
access cell processes to replicate viruses
metabolize proteins for the cell
synthesize antibodies for defense
grow new viruses using the cell's ribosomes
A prey population of varying running speeds exists in an area as shown in the graph. If natural selection works as it should the prey-
with average speeds will increase over time
with slower speeds should increase over time
with faster speeds will increase over time
with faster speeds will decrease over time
Adaptations that result from natural selection are expected to increase the fitness of an organism. In terms of natural selection, what is fitness?
being able to escape from predators
being among the strongest organisms in a population
being able to survive, find a mate, and produce offspring
being able to survive long enough to reach an adult age
Scientists can determine how closely organisms are related using DNA and their amino acid sequences. Using the chart, which organisms is LEAST related to the other three.
organism 1
organism 2
organism 3
organism 4
Which organism is the most closely related to the Sun Bear in this cladogram?
Lesser panda
Giant panda
Raccoon
Spectacled Bear
Genome maps illustrate DNA similarities in organisms. What is a reason as to why a scientist would use a genome map?
to predict new species a
the show how organisms could share a common ancestor
to show how proteins are made
to demonstrate the importance of the cell cycle
Which type of mutation does the model demonstrate?
deletion
insertion
substitution
translocation
A mutation in which types of cells would only affect the organism and not future generations?
Egg cell and liver cell
Sperm cell and egg cell
Nerve cell and brain cell
Sperm cell and lung cell
What is the purpose of this cellular process?
preserving genetic information for future generations
deleting information in the DNA template
transcribing information in the DNA sequence to be used by the cell
producing more nucleotides for the DNA sequence
Two frog species are recovered from a forest in order to help them begin to repopulate. The frogs within their own populations bred just fine however, they would not breed with the other frog population. What could be a possible explanation?
They are the same species but in different kingdoms
They are in the same class but different phyla
They are in the same family but different orders
They are in the same genus but are different species
All the animals to the right of the hagfish have the common characteristic of-
fur
claws or nails
lungs
jaws
A recent dog advertisement says that it's food will build lean muscle and provide energy to the dogs. What two biomolecules must be present for this to be true
protein and carbohydrates
carbohydrates and lipids
nucleic acids and carbohydrates
lipids and nucleic acids
Four different nucleotides are used to build a DNA molecule. Which of the following can be used to distinguish one nucleotide to another?
the nitrogen base
the shape of the sugar
the length of the phosphate group
the type of fatty acid
Carbohydrates are more easily metabolized than lipids. However, on a gram to gram basis, lipids provide cells with more-
nitrogen
protein
structure
energy
The building blocks, or subunits, that make up a protein molecule are known as-
fatty acids
nucleotides
monosaccharides
amino acids
Which four systems allow for a person to sneeze?
muscular, immune, nervous, respiratory
nervous, respiratory, circulatory, skeletal
respiratory, endocrine, skeletal, circulatory
lymphatic, skeletal, respiratory, muscular
The response represented in the illustration would most likely be caused by-
a reduced supply of oxygen
long periods of rainfall
high concentration of glucose
little available water
The rocky material left behind after a glacier receeds is called a moraine. Which organisms will help the rocky moraine begin the process of primary succession?
insects
lichens
grasses
trees
Which of these best demonstrates mutualism between humans and bacteria?
Intestinal bacteria obtain nutrients from food and provide vitamin K for humans
bacteria become resistant to antibiotics used to fight infection
invasive bacteria invade an injured area and produced harmful toxin to human
bacteria found in improperly prepared food causes food poisoning for human
Remora fish attach to sharks to feed on scraps created by the sharks after meals. The suction disk on the remora mouth does not damage the shark's scaly skin. This type of symbiotic relationship is known as-
predation
parasitism
mutualism
commensalism
Green algae grows on the backs of some aquatic spiders to be near sunlight. The algae camouflages the spider from predators. This type of of relationship is known as-
mutualism
parasitism
commensalism
predation
Which of these organisms will likely increase if a disease affects and starts to kill off the horn lizard population?
grasshoppers and ants
ants and cottonmouths
cottonmouths and hawks
ants and hawks
Which statement best describes why there is a difference in biomass at each level of this diagram?
organisms at higher levels have less energy available to them
organisms at higher trophic levels need smaller habitats
organisms at lower levels need less energy
organisms at lower levels outcompete the higher level organisms
As energy flows through the organisms of this energy pyramid, how much energy would be available to the secondary consumers?
1000 joules
100 joules
10 joules
1 joule
The cell in the image can best be described as-
Multicellular
Viral
Eukaryotic
Prokaryotic
In cattle the allele for cloven hooves (H) is dominant over the allele for mule-foot hooves (h). The phenotype for each trait is shown in this picture.
What is the probability of cloven hooves in the offspring of parents that are heterozygous for the trait?
25%
50%
75%
100%
What is the process shown in the diagram?
transcription
translation
mutation
transformation
What type of mutation is shown in the diagram?
substitution
insertion
deletion
no change
Use the chart to find to amino acid that corresponds to the codon GGA:
Alanine
Glutamic Acid
Lysine
Glycine
Which do BOTH prokaryotes and eukaryotes contain?
nucleus
mitochondria
ribosomes
cell wall
Which does only eukaryotic cells contain?
nucleus
DNA
cell membrane
ribosomes
Prokaryotic cells do not have…….
membrane bound organelles
cell membrane
DNA or RNA
life
You can distinguish a prokaryote apart from a nucleus by--
The presence of a ribosome
The presence of a cell membrane
The presence of DNA
The presence of a nuclear membrane
Bacteria is an example of a(n)
prokaryotic cell.
eukaryotic cell.
Which of the following would be a major component in a plant cell wall?
cellulose
starch
glycogen
salivary amylase
What is the function of a protein?
provide a source of immediate energy
provide storage of energy
store your genetic information
growth of muscle and tissues
What are the building blocks of proteins?
nucleic acids
monosaccharides
fatty acids
amino acids
Which describes a hypotonic environment?
Too much water in the cell will cause the cell to burst - the percentage of water is higher outside the cell than inside the cell
Too little water in the cell will cause the cell to shrink - the percentage of water is lower outside the cell than inside the cell
Concentrations of water are equal inside and outside the cell
Which describes a hypertonic environment?
Too much water in the cell will cause the cell to burst - the percentage of water is higher outside the cell than inside the cell
Too little water in the cell will cause the cell to shrink - the percentage of water is lower outside the cell than inside the cell
Concentrations of water are equal inside and outside the cell
The movement of materials that requires energy is called...
active transport
passive transport
massive transport
proactive transport
Arrange the following levels of hierarchy from smallest to largest
Organism, Organ, Tissue, Cell, Organelle
Organelle, Cell, Tissue, Organ, Organism
Organism, Cell, Tissue, Organ
Tissue, Cell, Organ, Organism
Name the phase:
Prophase
Metaphase
Anaphase
Telophase
What is happening in this series of images?
Mitosis - nucleus divides
Mitosis - DNA replicates
Interphase - the cell prepares for DNA replication
Interphas - the cell divides
CROSSING OVER INCREASES
LIFE SPAN
GENETIC VARIATION
THE NUMBER OF OFF-SPRING
ALL ARE TRUE
What is the first step to both viral cycles?
The virus attaches to a host
the virus injects genetic material
the host gets sick
the cell is destroyed
When the viral DNA becomes active in the lysogenic cycle, which life cycle does it enter?
lytic
lysogenic
cell cycle
DNA replication
Choose the correct order of lytic cycle steps
attachment, entry, assembly, replication, release
attachment, entry, replication, assembly, release
attachment, entry, assembly, release, replication
attachment, release, assembly, replication, entry
This example for
Internal stimuli
Thigmotropism
Phototropism
no answer correct
This example for
Internal stimuli
Light stimuli
Tough stimuli
Temperature stimuli
This example for
Internal stimuli
Light stimuli
Thigmotropism
Temperature
This picture would represent which type of tropism?
Phototropism
Geotropism
Thigmotropism
Organisms whose cells do not have a nucleus are called _____.
Eukaryotes
Multicellular
Unicellular
Prokaryotes
The genotype for a yellow plant is...
In the punnett square below, what belongs in the missing square
Which organelle is the location where protein is made?
Ribosome
Nucleus
Cytoplasm
Nucleotide
During transcription, this type of ribonucleic acid is responsible for copying the DNA and brining it out of the nucleus.
tRNA
mRNA
rRNA
dRNA
When these bond together, they form a protein
Amino Acids
Peptide Bonds
Ribose
Nucleotides
These building blocks consist of a sugar, phosphate, and nitrogen base.
Ribose
Nucleotide
Gene
Protein
A string of nucleotides that contain the information to make a specific protein
Ribose
Amino Acids
tRNA
Gene
Which of the following is the complementary mRNA sequence to this DNA strand: AACTGAA
UUGACUU
TTGACTT
AACTGAA
AACUGAA
Which of the following is the complementary mRNA sequence to this DNA strand: AACTGAA
UUGACUU
TTGACTT
AACTGAA
AACUGAA
What process is happening in the diagram?
transcription
translation
dna replication
mitosis
A nucleotide base is inserted or deleted shifting the entire DNA sequence. Entire protein will be changed.
Substitution Mutation
Silent Mutation
Frameshift Mutation
Translocation
A frameshift mutation where a nucleotide base
is removed from the DNA sequence.
Deletion Mutation
Substitution Mutation
Translocation
Silent Mutation
parent 2: ggBb
Find the gametes for parent 1.
The forelimbs of mammals have similar anatomy because these groups descended from a recent common ancestor. Their bone structure is an example of a(n) ______________ structure.
vestigial
analogous
homologous
What is a change in an organism that allows for it to survive in its environment?
homologous
vestigial
variation
adaptation
What is this an example of?
diversity of species
variation
vestigial structures
DNA studies
Genetic drift is change in the allele frequency of a population due to...
random chance
natural selection
non-random mating (sexual selection)
artificial selection
This mechanism of evolution occurs when populations migrate.
Extinction
Gene flow
Genetic drift
Natural Selection
In this food web, which of the following organisms eats the largest variety of different producers?
Mouse
Grasshopper
Dragonfly
Butterfly
What would happen to the bird if the green fish died out?
the bird population would grow
the bird population would die out
the smaller fish will die out
Aphids are tiny insects that live on and eat the leaves of plants, removing vital nutrients from the plants.
Predation
Parasitism
Commensalism
Mutualism
The picture display which type of succession?
primary
secondary
tertiary
all of the above
ATG TGA CAG
What 2 systems: Absorb and deliver the digested nutrients to the cells
Digestive and muscular
Muscular and lymphatic
Digestive and circulatory
Nervous and skeletal
What 2 systems: Allow organs to contract and push food through
Muscular and Skeletal
Excretory and Muscular
Endocrine and Muscular
Muscular and Digestive
What 2 systems: Diaphragm controls breathing
Circulatory and Endocrine
Respiratory and Muscular
Muscular and Skeletal
Circulatory and Respiratory
A group of the same organisms living together in the same place at the same time is:
An organism
A population
A community
A biome
What are groups of different populations living togther in the same place at the same time called?
An organism
A population
A community
A biosphere
Which choice shows the correct order of the levels of environmental organization?
organism, population, community, ecosystem, biosphere
organism, population, ecosystem, biosphere, community
organism, community, population, ecosystem, biosphere
population, ecosystem, biosphere, organism, community
