In a particular ecosystem, the following food web can be observed.

Question

13. Identify the organisms as producers or consumers.

(2 points)
producer	primary consumer	secondary consumer	tertiary consumer
grasses

frog

snake

rabbit

Question 2
14.  Why is there a limit to the number of levels that can exist in a food web or energy pyramid?(1 point)
Responses

The amount of energy available for use by the next organisms decreases going up from one level to the next.
The amount of energy available for use by the next organisms decreases going up from one level to the next.

The amount of energy available for use by the next organisms increases going up from one level to the next.
The amount of energy available for use by the next organisms increases going up from one level to the next.

The amount of energy available for use by the next organisms decreases going down from one level to the next.
The amount of energy available for use by the next organisms decreases going down from one level to the next.
Question 3
15.  Which organisms are considered autotrophs?(1 point)
Responses

grasses
grasses

hawks
hawks

frogs
frogs

rabbits
rabbits
Question 4
Food webs and energy pyramids show the movement of matter and energy through ecosystems.

16. Click to show how matter and energy move through ecosystems.

(2 points)
matter	energy
flows through the ecosystem

cycles within the ecosystem

Earth has a generally fixed amount

Earth is always receiving more

GPT-4o mini · Answer

**Question 1: Identify the organisms as producers or consumers.** | Organism | Classification | |----------|------------------------| | Grasses | Producer | | Frog | Secondary Consumer | | Snake | Tertiary Consumer | | Rabbit | Primary Consumer | --- **Question 2: Why is there a limit to the number of levels that can exist in a food web or energy pyramid?** - **Response:** The amount of energy available for use by the next organisms decreases going up from one level to the next. --- **Question 3: Which organisms are considered autotrophs?** - **Response:** Grasses --- **Question 4: Click to show how matter and energy move through ecosystems.** | Matter | Energy | |-------------------------------|---------------------------------| | Cycles within the ecosystem | Flows through the ecosystem | | Earth has a generally fixed amount | Earth is always receiving more | If you have any further questions or need clarification, feel free to ask!