Living Organisms and Ecosystems

A living thing that lives on wastes and the remains of dead plants and animals is a _______.

• producer

• omnivore

• consumer

• decomposer

An animal that eats only meat (other animals) is a ________.

• producer

• herbivore

• omnivore

• carnivore

Food provides animals with the materials and energy they need for growth, warmth, and motion. Plants get material for growth mostly from air and water, and obtain energy from sunlight. Producers provide food to consumers because ___.

• plants can easily make food from soil and water

• animals cannot produce their own food

• plants are more abundant in ecosystems

• many animals prefer eating plants to eating meat

Tags

NGSS.MS-LS2-3

Identify the two BIOTIC factors from the list.

• Bacteria

• Rocks

• Sunlight

• Worms

Deserts, mountains, and rainforests are all examples of.....

• Tundras

• Ecosystems

• Biotic factors

• Population

How are ecosystems important to humans

• They clean the air

• They are great for activities

• All of these answers are correct

• They provide resources like wood

Tags

NGSS.MS-ESS3-4

Is this a stable population?

• No

• Yes

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What is there the least of in an ecosystem?

• Tertiary consumers

• Primary consumers

• Secondary consumers

• Producers

Bears eat fish, insects, plants, seeds, nuts and young elk. Bears are called a(n) __________.

• Franivore

• Carnivore

• Herbivore

• Omnivore

A disease reduces the number of young salmon in a river. Which population will MOST likely increase as a result?

• trout and eagle

• algae and trout

• sculpin and algae

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4