Which statement is true?

• Water is important to some organisms.

• Some substances must be dissolved in water before they can be used.

• All organisms obtain water through food.

• Plant cells are unaffected when water is scarce.

Tags

NGSS.MS-LS2-1

Which statement expresses why water is so important to living organisms?

• It assists organisms in releasing carbon dioxide.

• It assists organisms in remaining disease free.

• It assists organisms in obtaining certain dissolvable substances.

• It assists organisms in breathing in oxygen.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which statement describes a response to external stimuli?

• A rabbit runs away from a fox that is chasing it.

• A woman drinks water when she is thirsty.

• A boy eats food when he is hungry.

• A person yawns when oxygen levels in the blood are low.

Tags

NGSS.MS-LS1-8

Which statement describes a response to external stimuli?

• A girl eats when she is hungry.

• A child becomes hyperactive due to a chemical imbalance.

• A person yawns when oxygen levels in the blood are low.

• A boy sneezes when exposed to cat dander.

Tags

NGSS.MS-LS1-8

Which stimulus is an example of an internal stimulus?

• A sudden change in air temperature.

• An artificial light that attracts insects.

• An increase in the amout of water available to a plant.

• A decrease in oxygen levels in the blood during exercise.

Which action is a response to external stimuli?

• Eating when hungry.

• Breathing hard when exercising because of a drop in oxygen levels

• Drinking when thirsty.

• Wearing sunglasses to protect eyes from UV rays.

Which choice is a BIOTIC factor of an ecosystem?

• Sun

• Soil

• Ants

• Air

Tags

NGSS.MS-LS1-4

Which choice is a ABIOTIC factor of an ecosystem?

• Dogs

• Minerals

• Ants

• Fungi

Tags

NGSS.MS-LS2-3

Which place describes a community?

• The desert.

• A hole in which snakes live.

• A forest of birds, insects, and squirrels.

• A desert of sand, rocks, hawks, and snakes.

Which location describes a community?

• The ocean.

• A hole in which a ground squirrel lives.

• A forest of birds, insects, and squirrels.

• A lifeless desert of sand, rocks, and high temperature.