NEW
Font size
S
M
L
XL
WorksheetsGenetic Variation and Natural Selection
Total questions: 10
Worksheet time: 6mins
Name
Class
Date
1.
These cause variations.
a)
mutations
b)
adaptations
c)
a desire to change
d)
injuries
2.
Why are advantageous traits more likely to be passed onto offspring?
a)
Because they are more likely to survive and reproduce.
b)
Because they come from dominant alleles.
c)
Because they come from recessive alleles.
d)
Because the organism knew it needed that trait, survives, and passes it on.
3.
Mutations are a change in what?
a)
DNA
b)
tRNA
c)
genotype
d)
phenotype
4.
The differences among a species, like different bird beaks, are called
a)
genes.
b)
variations.
c)
traits.
d)
theories.
5.
What process is being shown in this image?
a)
Variation
b)
Natural Selection
c)
Selective Breeding
d)
Homeostasis
6.
Organisms that are better adapted to the environment survive to pass traits to their offspring
a)
Natural Selection
b)
Homeostasis
c)
Selective Breeding
d)
Extinction
7.
Which best describes the role of mutations in natural selection?
a)
Mutations help an organism to better survive in their environment
b)
An organism may acquire a helpful mutation by interacting with the environment
c)
A mutation may result in an adaptive trait that makes an organism more likely to survive and reproduce
d)
Organisms with certain traits are more likely to win competitions for mutations
8.
Behavioral changes of individuals of a species that allow for better survival. (Acquired traits)
a)
Variation
b)
Adaptation
c)
Behavior
d)
Environment
9.
Organisms with the most beneficial traits will survive. This is commonly known as
a)
theory of evolution.
b)
variations.
c)
survival of the fittest.
d)
ecosystems.
10.
The graphs below show the changes in crab color at one beach.
Which of the following is most likely to have caused the change in the distribution?
a)
A new predator arrived that preferred dark-tan crabs.
b)
A new predator arrived that preferred light-tan crabs.
c)
A change in beach color made medium-tan crabs the least visible to predators.
d)
A change in beach color made medium-tan crabs the most visible to predators.
Reset
