Unit 7 AP Biology

A population of a certain kind of fish is introduced into a new habitat. These fish have variations in color from light to dark. Because of the lighting conditions and predators in this new habitat, light-colored fish survive better near the surface and dark-colored fish survive better near the bottom. What change would likely result after many generations of these fish living in this environment?

• All the fish would become more similar, something exactly between light-colored and dark-colored.

• None of the fish would be able to survive, because the new habitat is not suited to any of them.

• There would be two populations of fish, light-colored near the surface and dark-colored near the bottom.

• The fish would become smaller over time so that they could more easily defend themselves from predators.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

This fossil snake and this living rat both have a structure in their skull called the quadrate bone. What best explains why both species have a quadrate bone?

• The snake and rat are different species, so they must not be related. They inherited the quadrate bone structure from separate ancestor populations.

• All species have their own specific body structures, so it is a coincidence that the snake and rat each happen to have the quadrate bone structure.

• The snake and rat both share the same ancestor population that had a quadrate bone. They inherited this structure from the ancestor population.

• It is impossible to say. Fossils are very old; therefore, we cannot make observations of the snake’s ancestors, and we cannot explain its body structures.

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

What number is the common ancestor of C and D

• 1

• 2

• 3

• 4

Tags

NGSS.MS-LS4-2

Based on the data given in the table, which two are most closely related?

• Human & Gorilla

• Gorilla & Orangutan

• Human & Chimpanzee

• Chimpanzee & Orangutan

Tags

NGSS.MS-LS4-2

Based on the given cladogram, which organism is the outgroup?

• human

• chimpanzee

• gorilla

• orangutan

• gibbon

Based on the figure, which organism is most closely related to the polar bear?

• black bear

• european brown bear

• western north american brown bear

• asian brown bear

Tags

NGSS.MS-LS4-2

Based on the figure, which organism is most closely related to A. forsteri?

• E. ferus

• D. polylepis

• G. gallus

• E. africanus

Tags

NGSS.MS-LS4-2

A new river forms and splits two populations, causing ______________ speciation

• Sympatric

• Allopatric

• Extreme

• Convergent

Tags

NGSS.HS-LS4-4

A speciation in which new species evolve from a single ancestral species while inhabiting the SAME geographic region.

• Sympatric speciation

• Allopatric speciation

• Complex speciation

• Divergent speciation

Tags

NGSS.MS-LS4-2

Speciation that caused by breeding occurring at different time of the day is called

• behavioral isolation

• temporal isolation

• ecological isolation

• habitat isolation

Tags

NGSS.HS-LS4-2