
STAAR 2021: Evolution
Quiz
•
Biology
•
9th Grade
•
Medium
Skylar Vaughn
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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.
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Why are advantageous traits more likely to be passed onto offspring?
Because the trait is an acquired phenotype.
Because they come from dominant alleles.
Because they come from recessive alleles.
Because they are more likely to survive and reproduce.
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What word describes a trait that helps an organism survive in its environment?
natural selection
mutation
camouflage
adaptation
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Mutations are a change in what?
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
These moths are all the same species. The differences between their wings is an example of ________________
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