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- 1. Multiple Choice
Which two factors contribute most to genetic variation in populations and species? (choose TWO answers)
Asexual reproduction
Environmental pressures
Sexual reproduction
Mutations
- 2. Multiple Choice
The process of natural selection leads to genetic change in a population.
Which factor causes the population to change in natural selection?
Environmental conditions or challenges
Human intervention
- 3. Multiple Choice
Selective breeding leads to genetic change in a population.
Which factor causes the population to change in selective breeding?
Environmental conditions or challenges
Human intervention
- 4. Multiple Choice
The coral snakes that were able to survive the summer drought reproduced. Their offspring will likely be able to tolerate drought.
Natural selection [or] Selective breeding?
Natural selection
Selective breeding
[Artificial selection]
- 5. Multiple Choice
A pig farmer mates a male pig (boar) with excellent muscle mass to a female pig (sow) with a wide body.
Natural selection [or] Selective breeding?
Natural selection
Selective breeding
[Artificial selection]
- 6. Multiple Choice
A cucumber farmer cross-pollinates cucumber plants to increase overall length and disease resistance.
Natural selection [or] Selective breeding?
Natural selection
Selective breeding
[Artificial selection]
- 7. Multiple Choice
The vampire bats that were able to survive a disease in the population reproduced. Their offspring will likely be resistant to the disease.
Natural selection [or] Selective breeding?
Natural selection
Selective breeding
[Artificial selection]
- 8. Multiple ChoiceIndividual plants or animals in a population with certain desired traits are chosen by breeders, farmers, or ranchers to mate. The people hope to get the desired traits in the offspring.
Natural selection
Selective breeding
[Artificial selection]
- 9. Multiple Choice
Individuals in a population that have the traits needed to survive in the environment get to survive and reproduce. Their offspring inherit those traits. Over time, a greater percentage of the population have those successful traits.
Natural selection
Selective breeding
[Artificial selection]
- 10. Multiple Choice
A individual mouse that is faced with environmental challenges, such as limited food, drought, and predators -
Will either survive or die
Can change its fur to be more camouflaged
Can change the shape of its teeth to feed on different types of food
Can begin migrating long distances in search of better habitat
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