Module 3: Evidence of Evolution--Benchmark 3

In an undisturbed rock formation, the rocks on the bottom are...

• Cleanest

• Youngest

• Oldest

• Softest

_______ fossils can provide information about how organisms moved, rested, burrowed, etc.

• Mold
• Cast
• Trace
• Replacement

Define evolution.

• The changes over time in the inherited traits of a type of organism.
• the change over time of related populations of organisms.
• Found in all vertebrate embryos.
• The science of the development of embryos from fertilization to birth.

Where on the rock formation would you be more likely to find complex life forms?

• oldest
• youngest
• middle

Why do some animals go extinct?

• They change too quickly.
• They do not change at all.
• They are unable to adapt or change to their environment.
• Animals do not ever go extinct.

Define biological evolution.

• The changes over time in the inherited traits of a type of organism.
• the change over time of related populations of organisms.
• Found in all vertebrate embryos.
• The science of the development of embryos from fertilization to birth.

Where on the rock formation would you be more likely to find simple life forms?

• oldest

• youngest

• middle

Define analogous structures.

• A body part that has lost its original function through evolution.
• Body parts of organisms that are similar in structure and position but different in function.
• Body parts that perform a similar function but differ in structure.
• Found in all vertebrate embryos.

When many species go extinct in a relatively short period of time?

• mass extinction

• extinction

• quick death

• Paleozoic

Hippopotamuses are more closely related to _______ and dolphins than to elephants or any other species.

• mammals
• insects
• whales
• birds