Which best explains why the birds evolved with differently shaped beaks?

• They interbred with each other.

• Some birds had defective gene pools.

• All of the birds ate the same type of food.

• They adapted to eating different types of food.

Tags

NGSS.MS-LS4-2

Human arms, whale fins, and bat wings share the same number of bones in each place. Why?

• They all need to be able to do the same thing with their limbs.

• There is only one number of bones that all animals have in their limbs.

• They share a common ancestor and diverged over time.

• They lived in the same place and slowly developed the same number of bones.

Tags

NGSS.MS-LS4-2

What does the Law of Superposition tell us?

• That the animal in the front will always have longer arms.

• That the fossils with better position will survive better.

• That the deeper fossil layers are older, unless something has disrupted them.

• That radiation decays over time.

Tags

NGSS.MS-ESS1-4

Which rock layer is the oldest?

• R

• I

• F

• B

Tags

NGSS.MS-ESS1-4

Which is the main cause of the variation in traits within a population of organisms?

• genetic mutations

• common ancestors

• reduction of habitats

• environmental conditions

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-4

A bird in a forest ecosystem has a sharper beak than many other birds. Which best explains how this adaptation may help the bird survive?

• It enables the bird to dig for water.

• It increases the likelihood for the bird to obtain food.

• It increases the likelihood of the bird finding a suitable mate.

• It enables the bird to sing louder than birds with shorter beaks.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS4-4

Adaptations can be:

• camouflage

• ability to survive cold weather

• hunting skills

• all of the above

Tags

NGSS.HS-LS4-4

Natural selection occurs during the lifetime of a single organism.

• True

• False

What is most likely to happen to moth populations in the picture shown?

• Light moths--hunted easily, dark moths--population increase

• Dark moths--hunted easily, dark moths--population increase

• Light moths--hunted easily, light moths--population increase

• Lights moths will change their color to match dark moths.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS4-4

How do you "win" at natural selection?

• survive

• go extinct

• survive & reproduce

Tags

NGSS.MS-LS4-4