WorksheetsPart 2-Plus 5 bonus pts. if completed
Total questions: 46
Worksheet time: 1hrs 16mins
RED color flower is dominant (more expressed gene) to WHITE color flower which is recessive (not expressed if paired with dominant, but expressed if both alleles are same (represented by 2 small letters).
100% red
75% red, 25% white
50% red, 50% white
25% red, 75% white
The cell underwent the interphase. Now, it enters the Mitosis phase. Which has the proper sequence of mitosis phase from left to right?
I-II-III-IV
II-III-I-IV
III-II-I-IV
II-I-III-IV
Which best helps scientists determine the age of fossils?
Physical traits
Genetic makeup
Reproductive strategy
Radioactive isotopes
Although controversial at first, the germ theory of disease proposed that microorganisms were the cause of many diseases. Which of these was a result of the general acceptance that microorganisms cause disease?
The development and use of antibiotics
The belief in spontaneous generation
The link between viruses and RNA
The proof of a supernatural cause for illnesses
Studying the differences between fossils and modern organisms help scientist better understand the -
role of mutation inline functions
primary function of key macromolecules
adaptation of organisms through acquired traits
evolution of organisms over time
The weakness of hydrogen bonds between the bases of DNA allows
rearrangement of the sequence of bases to take place
base pairs to separate during transcription and replication
new bases to be incorporated into the DNA molecule
conversion of bases to amino acids in the event of cell starvation
Darwin's explanation for evolution was dependent on which scientific concept?
The ability of organisms to learn
The significance of social behaviors to survival
The existence of variations in a population
The relationship between size and survival
Which characteristic do most adult fungi and plants share?
They are both producers
The both have cells with cell walls
They both reproduce through binary fission
They both have multiple nuclei in each cell
In an ecosystem, a sudden decrease in the number of bacteria in the soil would most likely result in-
Increased water pollution in the soil
Increased precipitation and flooding of the soil
A reduction in the amount of nitrogen available to the ecosystem
A decrease in the number of fossils formed in the soil
Which is an activity that increases the genetic variation within a population of earthworms?
Binary fission
Sexual reproduction
Budding
Fragmentation
According to this diagram, the result of spermatogenesis is four sperm cells, each with
strands of DNA that resulted from crossing over
half of the original number of chromosomes
genetically identical strands of DNA
complete copies of all the original chromosomes
The diagram shows the the input and output of a process performed by the chloroplast of a cell. Which substance is most likely represented by X and Y. (SELECT ALL THAT APPLY)
X - CO2
X- Glucose
Y - CO2
Y-Glucose
In 1950, Erwin Chargaff discovered that the percentage of adenine in DNA equals the percentage of thymine, and the percentage of cytosine equals the percentage of guanine. This proved invaluable to the eventual discovery of which aspect of DNA?
Location
Solubility
Structure
Volume
AACAGGTAGCTACG
All of the living and nonliving components that interact in an environment.
population
ecosystem
community
organism
Any living thing is called a.................
ecosystem
community
population
organism
A change in a characteristic of a living thing that allows it to survive in its environment is called _____________.
an adaptation
an ecosystem
migration
What organisms eat plants and animals to gain energy?
Producers
Consumers
Decomposers
The sun
Who can make their own food through a process known as photosynthesis after receiving energy from the sun?
Producers
Consumers
Decomposers
The sun
Which of these is not a producer?
Tree
Flower
Grass
Bird
Look at the diagram of the food web. The arrows means “eaten by.”
What will happen if the number of snakes goes down?
The owl will eat the grass
The number of frogs will go down
The hawk and owl will have less food
The number of mice and grasshoppers will go up.
The transfer of energy from one organism to the next in an ecosystem begins with a producer. A producer is an organism that produces its own food. A consumer is an organism in a food chain that obtains energy from producers or other consumers; consumers may be herbivores or carnivores.
Which food chain correctly describes the flow of energy in an ecosystem?
grass → grasshopper → fish → human
grasshopper → fish → human
human → fish → grasshopper
human → grasshopper → fish → grass
What happens to the amount of available energy in the pyramid as it moves up through the different levels?
it increases
it decreases
it remains the same
it decreases, then increases
The following karyotype shows an individual with...
Down's syndrome
Kleinfelter's syndrome
Turner's syndrome
Someone exposed to UV light
The following karyotype shows an individual with...
Down's syndrome
Kleinfelter's syndrome
Turner's syndrome
Someone exposed to UV light
a photograph or picture of chromosomes grouped in ordered pairs is a ______________
pedigree
Punnett Square
Venn Diagram
Karyotype
Antibiotics will kill which of the following:
viruses
fungus
protists
bacteria
Which of the following are involved in asexual reproduction?
fertilization
meiosis
sperm
zygote
none of these are involved in sexual reproduction
