Energy In Ecosystems

What is the first and main source of energy for all living things?

• the moon

• the sun

• water

• food

Tags

NGSS.MS-LS1-6

What is the main difference between a producer and consumer?

• A consumer makes its own food, but a producer must get food from other living things.

• A producer makes its own food, but a consumer must get food from other living things.

• A producer is part of a food chain, but a consumer is part of a food web.

• A consumer is part of a food chain, but a producer is part of a food web.

Which sentence correctly uses the word PHOTOSYNTHESIS?

• Some cameras use a process called photosynthesis to turn light into digital pictures.

• Animals use photosynthesis to make food using energy from the Sun and matter from air and water.

• Plants use photosynthesis to make food using energy from the Sun and matter from air and water.

• Photosynthesis explains how plants and animals compete for natural resources.

Tags

NGSS.MS-LS1-6

Which sequence shows the correct order of living things in a food chain?

• leaves-->deer-->wolf

• salmon-->insects-->black bear

• hamster-->parakeet-->dog

• berries-->moose-->snake

Tags

NGSS.MS-LS2-3

Why is the base of an energy pyramid wider than the top?

• There are usually many more producers than top predators in an ecosystem.

• Only a small portion of energy can be passed from a lower level to the level above it.

• Both statements are true.

• Neither statement is true.

Tags

NGSS.MS-LS2-3

Which group of living things can move matter from consumers at the top of a food chain back to producers at the bottom?

• decomposers

• producers

• consumers

• nothing can move matter back to the bottom of a food chain

Tags

NGSS.MS-LS2-3

How would a sudden decrease in the rabbit population on an island affect other species there?

• The population of eagles would probably increase.

• The population of ladybugs would probably increase.

• The population of blue jays would probably decrease.

• The population of foxes would probably decrease.

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Owl is related to mouse in the same way that predator is related to _____.

• herbivore

• prey

• consumer

• decomposer

Tags

NGSS.MS-LS2-2

Why do animals have adaptations?

• There is competition of the same food sources.

• Ecosystems can change.

• Special body parts and behaviors are needed for survival.

• All options are true.

Tags

NGSS.MS-LS4-4

Which living thing is most likely to be between a polar bear and a fish in a food chain?

• a harp seal

• arctic flowers

• tiny ice worms

• another polar bear