WorksheetsBiology Final Review
Total questions: 74
Worksheet time: 19hrs 30mins
The symbiotic relationship between a flower and the insect that feeds on its nectar is an example of
mutualism because the flower provides the insect with food, and the insect pollinates the flower
parasitism because the insect lives off the nectar from the flower
commensalism because the insect doesn’t harm the flower, and the flower doesn’t benefit from the relationship
predation because the insect feeds on the flower
The evolution of Darwin's finches is an example of
equilibrium
speciation
stabilizing selection
artificial selection
Which of the following does NOT provide evidence that living things have been evolving for millions of years?
fossil record
homologous structures of living things
natural variation within a species
similarities in embryological development
The ability of an individual organism to survive and reproduce in its natural environment is called _____.
natural selection
adaptation
niche
fitness
Two populations of the same species become isolated from each other by a newly formed river. Genetic changes occur in one population and are not passed to the other population, which leads to the formation of two separate gene pools. This is an example of what evolutionary mechanism?
behavioral isolation
homologous structures
genetic drift
geographical isolation
Which of the following statements best explains the effect an adaptation has on an organism?
It increases an organism’s chance to survive.
It decreases an organism’s chance to reproduce.
It does not affect an organism’s chance to survive.
It decreases an organism’s ability to find food and eat.
The more similar the DNA sequences of two species, ________.
the more difficult it is to classify them
the more distantly they are related in evolutionary terms
the more recently they shared a common ancestor
the greater the evidence of their coevolution
In pea plants, tall (T) is dominant over short (t). Cross two heterozygous plants. What is the expected phenotypic ratio of the offspring?
2:2
3:1
1:3
4:0
Which of the following correctly represents the process of protein synthesis?
DNA translation to RNA transcription to proteins
RNA translation to DNA transcription to proteins
DNA transcription to RNA translation to proteins
proteins transcription to RNA translation to DNA
The organelle that determines if the endoplasmic reticulum is rough or smooth and is responsible for making proteins is the ___.
centriole
ribosome
mitochondria
lysosome
How does a change in DNA bases affect an organism?
The change could have no effect on an organism.
The function of the resulting protein could change and be harmful to the organism.
The function of a protein could change and be beneficial for the organism.
All answer choices are correct.
A breed of chicken shows codominance for feather color. One allele codes for black feathers, another codes for white feathers. The feathers of heterozygous chickens of this breed will be
black
white
gray
speckled
How many chromosomes does a human bone cell have?
12
46
23
92
Which of the following organelles would NOT be present in an animal cell?
mitochondria
cell membrane
chloroplasts
ribosomes
Agricultural scientists develop a way to insert a third chromosome into the diploid body cells of a watermelon plant to create a seedless fruit. How could this extra chromosome affect watermelon offspring?
All offspring would have an extra chromosome.
The offspring would be unaffected because it was inserted into a body cell.
The extra chromosome in the body cell would prevent the watermelon from making gametes; therefore it could not produce offspring.
None of the answer choices are correct.
In humans, what substance is produced from the process of anaerobic fermentation?
alcohol
fat
lactic acid
blood
The different forms of a gene are called
alleles
hybrids
traits
amino acids
Construction workers use a rope and pulley system to move timbers of a bridge away from each other to dismantle the bridge. What stage of mitosis is similar to this way of dismantling a bridge?
prophase
metaphase
anaphase
telophase
It is possible for chromosomal abnormalities to occur if tetrads do not separate properly during meiosis. This process is called nondisjunction. When does this occur during meiosis?
prophase 1
metaphase 2
anaphase 1
telophase 2
A heterozygous tall pea plant is crossed with a short plant. The probability that an F1 plant will be tall is
25%
50%
75%
100%
If a cell has 10 chromosomes, each of its daughter cells will have ___ chromosomes after mitosis.
10
20
40
5
Roan cattle show codominance for the color of their hair. There are alleles for red hair and white hair. What would you expect a heterozygous roan bull to look like if the trait showed incomplete dominance instead?
It would be red
It would be white
It would be spotted
It would be pink
What process occurs during meiosis resulting in increased genetic variation?
gamete production
morphogenesis
crossing-over
cell differentiation
How do the cells created via mitosis compare to the original cell?
they are genetically identical
they are genetically different
it depends on the type of cell
none of these are correct
If a cell has 50 chromosomes, each of its daughter cells will have ___ chromosomes after meiosis.
100
25
50
10
Unlike mitosis, meiosis results in the formation of ______.
four genetically different haploid cells.
two genetically identical diploid cells.
four genetically identical haploid cells.
two genetically different diploid cells.
Which of the following pairs of genotypes result in the same phenotype?
IAIA and IAIB
IBIB and IBi
IBIB and IAIB
IBi and ii
What percentage of human sperm cells carry an X chromosome?
0%
25%
50%
100%
Examine the pedigree. The allele for the presence of a white forelock is dominant. What is the probability of the couple labeled 2 of having a child with a white forelock?
25%
50%
75%
100%
What is one of the advantages, why is it better to reproduce sexually versus asexually?
survival of the fittest
overproduction
genetic variation
cloning
What is the maximum percentage of food energy available to the hawk assuming the seeds produce 100% of food energy?
0.1%
10%
1%
100%
Which of the following forms a base pair with guanine?
deoxyribose
adenine
guanine
cytosine
If the diploid number of carrots is 18, the haploid number is:
9
18
27
36
DNA is a polymer, which means it's made up of many repeating single units (monomers). What are the monomers of DNA?
carbon
nucleotides
glucose
nucleic acids
During DNA replication, a DNA strand that has the bases CTAGGT produces a strand with the bases...
TCGAAC
GATCCA
AGCTTG
GAUCCA
Genes contain instructions for assembling __________.
proteins
purines
nucleosomes
pyrimidines
During exercise, one maintains homeostasis by
increasing CO2 levels
decreasing O2 levels
sweating
stopping all other maintenance activities.
The branch of biology dealing with interactions among organisms and between organisms and their environment is called
economy
modeling
recycling
ecology
Different species can share the same habitat, but competition among them is reduced if they
reproduce at different times
increase their populations
eat less
occupy different niches
A group of individuals of the same species that interbreed make up a _____.
species
population
gene pool
genetic drift
All the interconnected feeding relationships in an ecosystem make up a food
interaction
chain
network
web
Which of the following desert organisms is a producer?
fox
cactus
lizard
scorpion
The major components of cell membranes are
carbohydrates
enzymes
lipids
nucleic acids
Imagine you are an ecologist studying two different communities. One community has only a few individual species and the other has a great diversity of species. Which community do you think would have a greater risk of extinction due to disease, habitat destruction, or other environmental changes?
the less diverse community would be at a greater risk of complete extinction
the more diverse community would be at a greater risk of complete extinction
the two communities would be at the same risk of complete extinction
environmental changes cannot cause extinction
The community with a great diversity of species is called a _________ community.
tertiary
climax
pioneering
primary
Purple loosestrife is an aggressive, non-native flowering plant that is now destroying fields and wetlands across the country. What is the main way that an introduced species such as purple loosestrife can harm the environment?
it pollutes the air
it crowds out native plants
it interrupts the water cycle
it prevents insects from pollinating other plants
Amino acids are building blocks of proteins just as
lipids are building blocks DNA
DNA is a building block of RNA
monosaccharides are a building block of polysaccharides
enzymes are building blocks of carbohydrates
Eukaryotes usually contain
a nucleus
genetic material
specialized organelles
all of the above
What is produced as a result of photosynthesis?
Glucose + Water
Oxygen + Water
Glucose + Oxygen
Water + Carbon Dioxide
In most cells photosynthesis takes place in the ___________ and cellular respiration takes place in the __________.
chlorophyll; Golgi body
nucleus; chloroplast
mitochondria; chloroplasts
chloroplast; mitochondria
What is the first step in completing the scientific method?
Form a hypothesis
Design a controlled experiment
Make observations and ask questions
Draw conclusions
This statement would be which part of the scientific method: "People are using umbrellas, it must be raining."
Inference
Question
Observation
Hypothesis
Science is all of the following EXCEPT:
A way of learning about the world
Provides explanations of the natural world
Never changes
Knowledge gained through studies
A charged atom from either the gain or loss of an electron is referred to as a(n):
isotope
compound
molecule
ion
Which pH is considered to be closest to neutral?
3
6
9
12
Water is
polar
non-polar
What obtains and uses materials and energy?
A change over time
A single fertilized egg grows and divides. Cells become specialized to perform specific tasks
Organisms must break down materials to grow, develop, and reproduce
What grows and develops?
Maintaining a stable internal environment
A single fertilized egg grows and divides. Cells become specialized to perform specific tasks
All organisms are made up of at least one cell
Factors that affect population size include
births
deaths
number of individuals that move into or leave the population
all of the above
Where do the reactions of cellular respiration occur?
Mitochondria
Cytoplasm and Mitochondria
Cytoplasm
Cancer can be simply described as…
Infection of the cells
Uncontrolled cell death
Uncontrolled cell growth
Cellular degradation
All organs in an organ system work together to perform a common function.
True
False
Stem cells will one day be able to make modern medicine better and more effective.
True
False
Only heterotrophs need to perform cellular respiration.
True
False
Human activities cannot affect the quality or supply of renewable resources such as land, water, and air.
True
False
A _______________ mutation is caused by the addition or deletion of a single letter, which causes all of the rest of the bases to be shifted one space causing the amino acids to be completely different, producing a completely different protein.
frameshift
point
nonsense
silent
What process of protein synthesis is taking place in the picture?
DNA Replication
Reverse Transcription
Translation
Transcription
What process of protein synthesis is taking place in the picture?
DNA Replication
Reverse Transcription
Translation
Transcription
What purpose does mRNA serve in protein synthesis?
carrying instructions to ribosomes
transporting new proteins
transferring amino acids to ribosomes
None of the above
Which of these describes a main difference between DNA and RNA?
RNA uses ribose sugar
RNA is single stranded
RNA has Uracil instead of Thymine
All of the above
If the allele frequency changes in a population over time, then evolution has occurred.
True
False
What is the control group?
The group that is used as a comparison, nothing changes
The group that changes
The group that responds to the changes
The group that wants everything their own way, nothing changes
The three particles that make up atoms are
protons, neutrons, and isotopes
protons, neutrons, and electrons
neutrons, isotopes, and electrons
positives, negatives, and neturals
Some molecules are attracted to water or “love” water molecules. These are called _________.
Hydrophilic molecules
Hydrophobic molecules
Neutral molecules
Isotope
