Quiz about Energy Flow TEST

Question 1

Each organism has its own role in a food web. Organisms can be producers, consumers, or decomposers. Which of these organisms can be classified as a decomposer?

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 2

A student is identifying food chains in a diagram of a food web. Which of the following organisms might be a tertiary consumer?

Accepted Answer

bear

Answer

frog

Answer

redwood tree

Answer

skunk

Question 3

Which phase best describes a consumer in a food web?

Accepted Answer

an organism that gets its energy by eating plants and animals

Answer

an organism that forms the base of the food chain

Answer

an organism that breaks down dead plants

Answer

an organism that converts light energy into chemical energy

Question 4

All organisms must obtain energy from their environment. Every organism needs this energy in order to grow and reproduce. How do producers obtain energy?

Accepted Answer

They capture energy from sunlight and manufacture their own food.

Answer

They obtain energy by eating plants, bacteria, and algae.

Answer

They extract chemical energy from decaying organic matter.

Answer

They extract energy from the chemicals in soil, air, and water.

Question 5

The primary consumers found within the food web is (are) the:

Accepted Answer

mouse, rabbit, and goat

Answer

tree

Answer

owl and wildcat

Answer

tree and goat

Question 6

Which leaf part allows for gas exchange during photosynthesis?

Accepted Answer

stomata

Answer

chloroplast

Answer

chlorophyll

Answer

roots

Question 7

_____________ is the proper name of the sugar that plants produce during photosynthesis.

Accepted Answer

Glucose

Answer

Hydrogen

Answer

Oxygen

Answer

Carbon dioxide

Question 8

In which cell organelle does photosynthesis take place?

Accepted Answer

chloroplast

Answer

nucleus

Answer

mitochondria

Answer

cell wall

Question 9

___________ + water + sunlight ----> glucose + oxygen

Accepted Answer

carbon dioxide

Answer

hydrogen

Answer

nitrogen

Answer

oxygen

Question 10

Which of the following is a producer in the food web?

Accepted Answer

phytoplankton

Answer

krill

Answer

zooplankton

Answer

elephant seal

Question 11

Which organism within the food web directly transfers energy to penguins?

Accepted Answer

fish

Answer

phytoplankton

Answer

leopard seal

Answer

smaller toothed whales

Question 12

How do sperm whales get energy in the food web?

Accepted Answer

By consuming squid

Answer

By consuming elephant seals

Answer

Directly from the sun

Answer

By consuming the producers

Question 13

What would happen if the "Other seals" population increased?

Accepted Answer

The smaller toothed whale population would also increase.

Answer

The krill population would also increase.

Answer

The baleen whale population would also increase.

Answer

The carnivorous zooplankton population would increase.

Question 14

How does biodiversity help an ecosystem?

Accepted Answer

makes it more sustainable so the ecosystem will not collapse

Answer

makes it less sustainable so the ecosystem will not collapse

Answer

makes it more sustainable so the ecosystem will collapse

Answer

makes it less sustainable so the ecosystem will collapse

Question 15

The warmer an environment is and the closer an environment is to the equator, the higher the biodiversity of the environment. Based on these observations, which of these environments has the greatest biodiversity?

Accepted Answer

tropical rainforest

Answer

arctic tundra

Answer

mountaintop

Answer

polar icecap

Question 16

Which term describes the number and variety of plants and animals living an an area?

Accepted Answer

biodiversity

Answer

natural selection

Answer

ecosystem

Answer

habitat

Question 17

This diagram shows a food web found in the mangrove swamps along the Gulf of Mexico coast.

According to this food web, if prawns were wiped out, which organisms would lose their food source directly or indirectly?

Accepted Answer

small fish, herons, and pelicans

Answer

molds, bacteria, and snails

Answer

pelicans, snails, and bacteria

Answer

small fish, phytoplankton, and herons

Question 18

Tropical rainforests have the greatest biodiversity of any type of land ecosystem. How does biodiversity contribute to the sustainability of an ecosystem?

Accepted Answer

All of the above.

Answer

The presence of more species with different adaptations makes it more likely that some organisms will survive an ecological disaster.

Answer

Greater genetic variation within species makes it more likely that some individuals will survive a disease outbreak.

Answer

The presence of a variety of herbivore species that can feed on a larger number of different produce species helps ensure abundant prey for predators in the ecosystem.

Question 19

Which ecosystem would be more likely to survive if a disease killed the grasses?

Accepted Answer

The forest ecosystem because most of the animals can eat other organisms.

Answer

The grassland ecosystem because several predators compete for food.

Answer

The forest ecosystem because it has three top predators.

Answer

The grassland ecosystem because it has many herbivores.

Question 20

A student researching a northern forest ecosystem learns the following information about feeding relationships in the ecosystem.

Which food web best represents the flow of energy in these feeding relationships?

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

D.

Question 21

What is photosynthesis?

Accepted Answer

Process that converts sunlight, carbon dioxide, and water into glucose and oxygen.

Answer

Process that converts glucose and oxygen into sunlight, carbon dioxide, and water.

Answer

Process that converts sunlight and glucose into oxygen and carbon dioxide.

Answer

Process that converts sunlight and glucose into water and carbon dioxide.

Question 22

Organisms that produce their own food are called ________.

Accepted Answer

autotroph

Answer

heterotroph

Answer

biotic

Answer

abiotic

Question 23

Biotic factors of an ecosystem are ________.

Accepted Answer

the living things

Answer

the nonliving things

Answer

organisms that make their own food

Answer

organisms that cannot make their own food

Question 24

Which level directly consumes the primary consumers?

Accepted Answer

C

Answer

A

Answer

B

Answer

D

Answer

E

Question 25

How much energy is at the producer level?

Accepted Answer

1200

Answer

120

Answer

12

Answer

1.2

Energy Flow TEST

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