Which process converts solar energy into chemical energy in an ecosystem?(1 point)

Question

Responses

Combustion
Combustion

Decomposition
Decomposition

Respiration
Respiration

Photosynthesis
Photosynthesis
Question 2
What term describes organisms that produce their own food using sunlight?(1 point)
Responses

Herbivores
Herbivores

Heterotrophs
Heterotrophs

Autotrophs
Autotrophs

Carnivores
Carnivores
Question 3
Which of the following is an example of a primary consumer from the trophic pyramid shown below?



(1 point)
Responses

Organisms in section A
Organisms in section A

Organisms in section B
Organisms in section B

Organisms in section C
Organisms in section C

Organisms in section D
Organisms in section D
Question 4
What role do decomposers play in the cycle of matter?(1 point)
Responses

They store energy in chemical bonds
They store energy in chemical bonds

They break down dead organisms, returning nutrients to the soil
They break down dead organisms, returning nutrients to the soil

They fix atmospheric nitrogen
They fix atmospheric nitrogen

They produce energy from the sunlight?
They produce energy from the sunlight?
Question 5
Which of the following best represents the correct order of trophic levels from bottom to top?(1 point)
Responses

Producers, primary consumers, secondary consumers, tertiary consumers
Producers, primary consumers, secondary consumers, tertiary consumers

Primary consumers, producers, secondary consumers, tertiary consumers
Primary consumers, producers, secondary consumers, tertiary consumers

Tertiary consumers, secondary consumers, primary consumers, producers
Tertiary consumers, secondary consumers, primary consumers, producers

Secondary consumers, producers, primary consumers, tertiary consumers
Secondary consumers, producers, primary consumers, tertiary consumers
Use this food web to answer the next three questions

Question 6
What is the role of the mushroom in the food web shown below?(1 point)
Responses

Secondary consumer
Secondary consumer

Producer
Producer

Decomposer
Decomposer

Primary consumer
Primary consumer
Question 7
Based on the food web above, where does the energy go after the hawk?(1 point)
Responses

Snake
Snake

Grasshopper
Grasshopper

Grass
Grass

Bacteria
Bacteria
Question 8
From the food web above, which of the following is a tertiary consumer?(1 point)
Responses

Rabbit
Rabbit

Bacteria
Bacteria

Grasshopper
Grasshopper

Snake
Snake
Question 9
What term describes organisms that feed on both plants and animals?(1 point)
Responses

Omnivores
Omnivores

Herbivores
Herbivores

Decomposers
Decomposers

Carnivores
Carnivores
Question 10
Which trophic level typically has the least amount of energy available?(1 point)
Responses

Producers
Producers

Tertiary consumers
Tertiary consumers

Primary consumers
Primary consumers

Secondary consumers
Secondary consumers
Question 11
Which of the following statements correctly states the 10% rule in ecology?

(1 point)
Responses

Only 10% of the energy at one trophic level is transferred to the next trophic level
Only 10% of the energy at one trophic level is transferred to the next trophic level

Only 10% of the energy in an ecosystem is stored in the form of biomass.
Only 10% of the energy in an ecosystem is stored in the form of biomass.

Only 10% of an ecosystem's energy is lost as heat.
Only 10% of an ecosystem's energy is lost as heat.

Only 10% of an organism's energy is used for growth and reproduction.
Only 10% of an organism's energy is used for growth and reproduction.
Question 12
In an energy pyramid, which level typically has the most biomass?(1 point)
Responses

Tertiary consumers
Tertiary consumers

Primary consumers
Primary consumers

Producers
Producers

Secondary consumers
Secondary consumers
Question 13
What is primary productivity?(1 point)
Responses

The rate at which energy is stored by plants
The rate at which energy is stored by plants

The rate at which energy is consumed by animals
The rate at which energy is consumed by animals

The decomposition rate of organic matter
The decomposition rate of organic matter

The total biomass of all organisms in an ecosystem
The total biomass of all organisms in an ecosystem
Question 14
Biomagnification refers to:(1 point)
Responses

The decrease in toxin concentration as it moves up the food chain
The decrease in toxin concentration as it moves up the food chain

The spread of toxins through air and water
The spread of toxins through air and water

The increase in toxin concentration as it moves up the food chain
The increase in toxin concentration as it moves up the food chain

The conversion of toxins to harmless substances
The conversion of toxins to harmless substances
Question 15
DDT is an example of a substance that biomagnifies. It was historically used as(1 point)
Responses

a fertilizer
a fertilizer

a pesticide
a pesticide

a fungicide
a fungicide

a herbicide
a herbicide
Question 16
Anaerobic respiration occurs in the absence of(1 point)
Responses

ATP
ATP

carbon dioxide
carbon dioxide

oxygen
oxygen

glucose
glucose
Question 17
Using the food web below, match the organism with its role in the ecosystem.

(5 points)
Energy Source Producer Primary Consumer Secondary Consumer Tertiary Consumer Decomposer
Rabbit

Sun

Mushroom

Grass

Snake

Answer 1

Here are the answers to your questions:

1. Which process converts solar energy into chemical energy in an ecosystem?

   • Photosynthesis

2. What term describes organisms that produce their own food using sunlight?

   • Autotrophs

3. Which of the following is an example of a primary consumer from the trophic pyramid shown below?

   • Organisms in section B (Assuming section B refers to primary consumers, as you haven't provided a visual.)

4. What role do decomposers play in the cycle of matter?

   • They break down dead organisms, returning nutrients to the soil

5. Which of the following best represents the correct order of trophic levels from bottom to top?

   • Producers, primary consumers, secondary consumers, tertiary consumers

6. What is the role of the mushroom in the food web shown below?

   • Decomposer

7. Based on the food web above, where does the energy go after the hawk?

   • Bacteria (Assuming that bacteria decompose the remains.)

8. From the food web above, which of the following is a tertiary consumer?

   • Snake

9. What term describes organisms that feed on both plants and animals?

   • Omnivores

10. Which trophic level typically has the least amount of energy available?

    • Tertiary consumers

11. Which of the following statements correctly states the 10% rule in ecology?

    • Only 10% of the energy at one trophic level is transferred to the next trophic level

12. In an energy pyramid, which level typically has the most biomass?

    • Producers

13. What is primary productivity?

    • The rate at which energy is stored by plants

14. Biomagnification refers to:

    • The increase in toxin concentration as it moves up the food chain

15. DDT is an example of a substance that biomagnifies. It was historically used as:

    • a pesticide

16. Anaerobic respiration occurs in the absence of:

    • oxygen

17. Using the food web below, match the organism with its role in the ecosystem.

• Energy Source: Sun
• Producer: Grass
• Primary Consumer: Rabbit
• Secondary Consumer: Snake
• Tertiary Consumer: (if listed, choose appropriately)
• Decomposer: Mushroom

Feel free to ask if you have more questions!