Which of the following is a reason that Australian marsupials are endangered or extinct?

Which environmental condition is believed to have driven the adaptations in penguins that prevent them from flying?

Why can penguins no longer fly?

Which of the following is not an adaptation for bird flight?

Which of the following characteristics are shared by all mammals?

A bird’s streamlined body surface is created by

What characteristic of mammals helped them become better consumers?

Why do marsupials need a pouch for their young after birth?

Which of the following is NOT a marsupial?

For speciation to happen groups of the same species must first

A characteristic that improves an organism’s ability to survive is a(n)

What is the process by which organisms that are better adapted to their environment survive and reproduce more successfully than less well adapted organisms do?

The process by which populations slowly change over time is called

Marsupials are born _________________ after fertilization

Scientists compare organisms’ DNA to support the theory that all species share a common

A spider may produce hundreds of eggs, only a few of which may survive. This is an example of

The trace remains of an organism that lived long ago, most commonly preserved in sedimentary rock, are a

Which of the following is NOT an example of natural selection?

Which of the following features did whales possibly inherit from a four-legged ancestor?

The fact that an organism’s offspring are not identical is known as

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