Near a lake there are many bright flowers and lotuses that float on the water. Many insects are present, feeding on the nectar in the flowers. Frogs eat the insects.

Which of the following is this paragraph describing?

(A)an ecosystem

(B)a community

(C)an individual

(D)a population

1. Near a lake, there are many bright flowers and lotuses that float on the water. Many insects are present, feeding on the nectar in the flowers. Frogs eat the insects.

Which of the following is this paragraph describing?

An ecosystem

2. Which of the following models shows the flow of energy in a woodland ecosystem? Select the two correct answers.

sun → grass → mouse → owl
sun → tree → caterpillar → bird

3. What would happen to ecosystems without producers in the food chain?

Without producers, there would be no food for consumers and decomposers. The food chain would collapse.

4. Which of the following is a true statement?

All organisms generate waste and dead material that is recycled by decomposers.

5. What is the original source of all energy for animals?

The sun

6. Describe the difference between a food chain and a food web.

A food chain represents one possible pathway that energy and matter can take in an ecosystem. A food web contains multiple, interconnected food chains.

7. Which organisms’ decline may reduce the curlew population?

Grasshoppers

8. How might bird populations on mountainsides respond to a warming climate?

The range shifts uphill over generations.

9. Cover crops can be planted on farms in seasons when their main crops cannot grow. These crops allow the nutrients in the soil to continue cycling, for organisms in the area to have food, and can protect the soil from the weather.

What might happen if cover crops are not used?

The nutrients in the soil might become depleted, making it harder to grow the main crop in the next season.

10. What happened to North American coastal waters when the great white shark population decreased?

The ray population increased.

11. Climate change is primarily driven by

fossil fuel burning.

12. What would happen next if this graph were to be continued?

The predator population will continue to decrease, and the prey population will increase.

And I will leave the written questions to you good luck :)

is "person" correct

I think it might be A because the meaning of ecosystem is "a biological community of interacting organisms and their physical environment." and when reading the paragraph you can see that the insects are interacting with the environment and the frogs are interacting with the insects.

🏵Person🏵 Is 100%

thx

as the person who started this thread I give you my gratitude. you helped over 300 people person.

Agree with A.

Im going to try and take the test then give you guys the answer just give me some time and I will get back to everyone with the answers

I need help with the written questions

what are all the answers

Yea i need answers