Variation and selection

What word describes a trait that helps an organism survive in its environment?

• natural selection

• camouflage

• mutation

• adaptation

What word describes the process of having the advantageous traits that helps an organism survive and reproduce?

• natural selection

• mutation

• adaptation

• genetic engineering

Which of the following means "genetic change over time"?

• natural selection

• speciation

• evolution

• fitness

How do artificial selection and natural selection differ?

• In artificial selection, the environment acts as the selecting agent.

• In natural selection, traits that are useful to humans are inherited.

• In natural selection, humans act as the selecting agent.

• In natural selection, the environment acts as the selecting agent.

Scientist have created larger and sweeter strawberries for humans to consume (eat). What process was used?

• Natural Selection

• Artificial Selection

• Cellular Respiration

• Environmental Natural Selection

What is the advantage of having different shaped beaks?

• To look different from other species.

• To protect itself against predators.

• To be able to eat the food readily available in the environment.

• To protect itself against prey.

Which are examples of discontinuous variation?

• foot size

• height

• weight

• tongue rolling

Which is an adaptive feature of hydrophytes

• large network of roots

• stomata on the upper surface of the leaves

• leaves covered in spines

• water storage in the stem

Which is an adaptive feature of xerophytes

• large air spaces in leaves

• stomata on the upper surface of the leaves

• small root system

• water storage in the stem

An organism that survives longer is more likely to produce_______offspring

• less

• the same amount

• more

• no