Ecosystems, food webs, and environment review

Question 1

In a food chain, energy does NOT flow directly from ----

Accepted Answer

consumer to producer

Question 2

Bacteria, and earthworms are decomposers. What is the role of decomposers in a food chain?

Accepted Answer

break down dead organisms and recycle nutrients into ground.

Question 3

Animals depend on plants for food. Flowering plants also depend on animals to....

Accepted Answer

move pollen from flower to flower

Question 4

Decomposers break down the remains of consumers and producers, how does this benefit plants?

Accepted Answer

returning nutrients to the soil

Question 5

All of the following are examples of living things interacting with each other EXCEPT...

Accepted Answer

frogs sleeping in the mud at the bottom of a pond

Question 6

An omnivore eats...

Accepted Answer

Plants and Animals

Question 7

Which is an interaction between a living and non-living organism in an ocean ecosystem?

Accepted Answer

Sea turtle burying its eggs in the sand

Question 8

Decomposers like mushrooms get their energy from...

Accepted Answer

breaking down dead organisms

Question 9

Fleas live off of the blood of animals including dogs and cats. Fleas depend on their host for

Accepted Answer

food

Question 10

Plants interact with another living element of their environment when they are...

Accepted Answer

attracting insects

Question 11

If humans cleared a forest and built homes, we would expect which of the following?

Accepted Answer

Fewer tree-dwelling animals

Question 12

When animals eat other animals, they are depending on the other animals for....

Accepted Answer

energy

Question 13

Climates with abundant sunlight must have what available for plants to make their own food?

Accepted Answer

Water

Question 14

Frogs, turtles, and beavers all live around ponds. What adaption do they all have in common?

Accepted Answer

Webbed feet to help them swim through water.

Question 15

Which substance is needed by plants to survive and is released into the environment by animals?

Accepted Answer

Carbon-Dioxide

Question 16

A Carnivore eats....

Accepted Answer

other animals

Question 17

Which describes the relationship between plants and animals in the carbon dioxide-oxygen cycle?

Accepted Answer

plants produce and release oxygen animals need to breath

Question 18

Which is an example of a living organism interacting with a non-living element?

Accepted Answer

Frog laying their eggs in a body of water

Question 19

A producers role in an ecosystem is to...

Accepted Answer

Produce its own food for energy

Question 20

If humans over-hunted a population of insect-eating birds, what change would likely be seen?

Accepted Answer

Increased populations of insects

Question 21

Deer and wolves must have food in order to survive. They acquire food by...

Accepted Answer

deer eating plants and the wolves eating other animals

Question 22

What do the arrows in the food chain represent?

Accepted Answer

the flow of energy

Question 23

In Fall and Winter many trees lose their leaves due to cooler temperatures and what?

Accepted Answer

fewer hours of daylight

Question 24

How do plants affect the air that animals in different ecosystems breathe in?

Accepted Answer

Plants take in carbon dioxide and release oxygen in the air

Question 25

Which of the following non-living things do plants and animals most need to survive?

Accepted Answer

water

Question 26

Many animals in an ecosystem depend on other animals for what?

Accepted Answer

energy

Question 27

Plants are producers that begin the flow of energy between organisms in food chains when they.

Accepted Answer

make their own food using sunlight

Question 28

All of the following are examples of living things interacting with each other EXCEPT —

Accepted Answer

frogs sleeping in the mud at the bottom of the pond

Question 29

When plants make their own food, they add what gas to the atmosphere?

Accepted Answer

Oxygen

Question 30

The roots of a cactus spread out wide in the ground, what benefit does this provide the cactus?

Accepted Answer

absorbing water and supporting the plant

Question 31

What is the original source of energy in a food web?

Accepted Answer

The Sun

Ecosystems, food webs, and environment review

Questions 31

Ecosystems, food webs, and environment review

Questions 31