QA3 Review

When an organism of a species is born with a variation in a trait that gives it an advantage in its environment, we call that trait an adaptation.

• true
• false

When an organism of a species has an adaptation, it will compete for resources better, survive longer and pass that adaptation on to it's offspring. This process is called

• evolution by natural selection
• artificial selection
• inbreeding
• outbreeding

A yellow morph and green morph of an insect lives in the rainforest canopy. You would expect:

• the green population to increase and the yellow to decrease

• both populations should stay the same

• both populations will increase

• the green population to decrease and the yellow to increaseThis is a wrong answer

How do you "win" at natural selection?

• survive

• go extinct

• survive & reproduce

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

• natural selection

• mutation

• camouflage

• adaptation

Which organisms are most likely to survive?

• the best adapted
• the fastest
• the strongest
• the most domesticated (tamed)

According to the law of superposition, the oldest fossils are found 

• At the top of the rock layers
• Near the bottom of the rock layers
• In the middle of the rock layers
• Somewhat near the surface

_{Which rock layer in the diagram seems to be the oldest?}

• F
• E
• B
• A

The fossil record gives us _____.

• accurate data on the number of life-forms that lived.

• accurate insight on how animals reproduced.

• information on past life and environments on Earth.

• information on past life and environments on Earth.

The striking molecular similarities that exist between Earth's many diverse species can best be explained by...

• the inability of the species to undergo evolutionary change over time.

• random changes that occur separately in each species' genetic code.

• species mating with other species to produce offspring.

• the sharing of common ancestors within the species' evolutionary history.