Interactions

Which of these is the best conclusion the scientists can make about the extinct fish?

• The extinct fish had fins on its body similar to the fins on many fish that are living today.

• The extinct fish had stripes on its skin similar to the stripes on some fish that are living today.

• The extinct fish could live for many years, similar to some fish that are living today.

• The extinct fish had many predators, similar to many fish that are living today.

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Which piece of evidence supports the conservation of matter during the changes shown in the diagram?

• The combined mass of the glass and its contents is the same before and after the ice melts.

• The combined mass of the glass and its contents is less after the ice melts.

• The contents of the glass are wet before and after the ice melts.

• The contents of the glass are colorless before and after the ice melts.

Tags

NGSS.MS-PS1-5

Based on the features shown, which of these is the best conclusion the scientists can make?

• The animal lived in water.

• The animal blended in well with its environment.

• The animal had many offspring each year.

• The animal migrated long distances to find food.

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Which number represents the location of the moon when it is in the new moon phase?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-ESS1-1

Investigate the role of producers, consumers, and decomposers in an ecosystem and how they interact.

• Producers, consumers, and decomposers do not interact.

• Producers make food, consumers eat other organisms, and decomposers break down dead matter, all interacting in a cycle.

• Only producers and consumers interact.

• Decomposers do not play a role in ecosystems.

Answer explanation

Producers make food, consumers eat other organisms, and decomposers break down dead matter, all interacting in a cycle.

Tags

DOK Level 4: Extended Thinking

What is a primary consumer in an ecosystem?

• An animal that eats plants

• An animal that eats other animals

• A plant that produces its own food

• A decomposer that breaks down dead matter

Tags

NGSS.MS-LS2-2

Which of the following is a biotic factor in an ecosystem?

• Water

• Sunlight

• Temperature

• Plants

Which type of ecosystem interaction is characterized by one organism eating another for energy?

• Mutualism

• Commensalism

• Predation

• Competition

Tags

NGSS.MS-LS2-3

In an ecosystem, what role do plants typically play?

• Consumers

• Decomposers

• Producers

• Predators

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following best describes a predator-prey relationship?

• A lion eating a zebra

• A bee pollinating a flower

• A worm decomposing organic material

• A bird building a nest

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3