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Steve’s class is visiting the zoo. He observes that the stripe patterns of two zebras are very different. Which most likely explains why the zebras have different stripe patterns?

• The zebras eat different types of grass.

• The zebras are active at different times of the day.

• The zebras react to their habitat at the zoo in different ways.

• The zebras are expressing the trait for stripe pattern in different

  ways.

Tags

NGSS.MS-LS3-1

Jonathan observes two birds on the beach. One bird has a long, narrow beak while the other bird has a short, thick beak. Which best explains why the two birds have different types of beaks?

• The birds have the same parents.

• The birds live in different environments.

• The birds are members of the same species.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS4-2

NGSS.MS-LS4-4

Kristy and Alison are sisters, but they do not look alike. Which best explains this?

• They chose to express characteristics that are different from one another.

• Kristy inherited all her characteristics from their father and Alison inherited all her characteristics from their mother.

• They both inherited characteristics from each of their parents, but chose to express only some of the characteristics.

• They both inherited characteristics from each of their parents, but the characteristics are expressed in different ways.

• large mane

• sharp claws

• ability to hunt

The diagram shows an observer on Earth measuring the altitude of Polaris. What is his latitude?

• 43° N

• 43° S

• 47° N

• 47° S

Which statement about Polaris is best illustrated by the diagrams shown below?

• Polaris is located in a winter constellation

• Polaris' movement through the sky follows south-to-north

• Polaris is located at the zenith at each location

• Polaris' altitude is equal to a locations latitude

Which diagram best represents the location of Polaris for an observer located at the Equator?

• A

• B

• C

• D

Latitude measures how far North and South you are from

• The Prime Meridian

• The Tropics

• The Equator

• The United States

At which map location does Polaris appear the highest in the nighttime sky?

• Miami, Florida

• Kingston, Jamaica

• Havana, Cuba

• San Juan, Puerto Rico

If a ship was to travel north, what would happen to the altitude of Polaris

• increase

• decrease

• remains the same

• depends on the longitude of the observer