6G U9

Which can MOST likely be inferred about the two penguin species from this fossil evidence?

• The penguins had different feeding styles.

• The penguins had adapted to similar climates.

• The fossil penguin had better nocturnal vision than the modern penguin.

• The modern penguin had more advanced social groups than the fossil penguin.

Examine the illustration carefully. Which is the BEST prediction of what might happen to the moth population over time?

• The shades will have little or no effect on the moth population.

• The lighter-shaded moths will be selected out of the population.

• The darker-shaded moths will be selected out of the population.

• The lighter-shaded moths will become darker-shaded.

Which of these adaptations MOST helps the serval find prey in tall grass areas?

• long legs

• short tail

• small nose

• spotted fur

Which of these is an example of a new trait that would MOST likely decrease an organism’s chance of survival?

• An insect is able to survive and reproduce after being sprayed with insecticide.

• A species of snake with vertical bands of color blends in with a rocky shoreline.

• An albino (solid white) deer stands out against the dark background of its surroundings.

• Offspring of a moth are able to blend in with the color of bark on a tree.

The fur color of the snowshoe hare changes twice each year. In the summer it has dark fur, and in the winter it has white fur. How does this adaptation help the snowshoe hare survive?

• The white fur absorbs more sunlight and keeps the hare warm.

• The adaptation prevents predators from detecting the scent of the hare.

• The dark fur reflects more sunlight and keeps the hare from being sunburned.

• The adaptation allows the hare to blend into the environment and hide from predators.

What adaptation helps Emperor penguins survive in extremely cold environments?

• High density of feathers

• Ability to fly

• White fur

• Large body size

What feature of Emperor penguins increases the insulative property of their feathers?

• Tufts of down on the feather shafts

• Smooth skin

• Webbed feet

• Beak shape

How do Emperor penguins' streamlined body shape and flippers benefit them?

• Help in flying

• Aid in propelling through water

• Increase running speed

• Improve digging ability

What was a likely reason for the survival of dark-colored moths during the Industrial Revolution in England?

• They were faster than light-colored moths

• They could convert pollution to a non-toxic chemical

• They blended into the dark background

• They were covered by pollution and became invisible

Organisms that are classified as multicellular must have:

• only one cell.

• large cells.

• more than one cell.

• identical cells.