Succession and Extinction

Question 1

Some bacteria live in the roots of plants like soybeans and peas.

Revolt · Accepted Answer

to convert free nitrogen into usable nitrogen

Question 2

Kate wrote the steps of the carbon cycle to describe how carbon is cycled through specific organisms. The steps are in random order.1 - The rabbit decomposes.2 - The rabbit eats the carrot plant. 3 - The carrot plant takes in carbon dioxide from the air during photosynthesis.4 - Carbon compounds are returned to the soil.

Revolt · Accepted Answer

3, 2, 1, 4

Question 3

The diagram illustrates part of the carbon cycle.

Revolt · Accepted Answer

A consumer is obtaining carbon by eating carbon-based molecules stored in a producer.

Question 4

Cleo has a vegetable garden and wants to increase the amount of nitrogen in the soil.How can she most likely do this?

Revolt · Accepted Answer

add several soybean plants to her garden

Question 5

water vaporgroundwaterrunoffcondensation

Question 6

Which best describes a role of animals in the water cycle?

Revolt · Accepted Answer

They release water vapor when they exhale.

Question 7

During which process of the water cycle does water change from a gas to a liquid?

Revolt · Accepted Answer

condensation

Question 8

precipitationtranspirationevaporationcondensation

Revolt · Accepted Answer

condensation

Question 9

How is the nitrogen cycle important to humans?

Revolt · Accepted Answer

It converts nitrogen into a form that humans can obtain by eating other organisms.

Question 10

Which processes result in the release of carbon? Select three options.Animals break down food molecules to obtain energy.The remains of producers are broken down by decomposers.The remains of consumers are broken down by soil decomposers.Producers take in carbon dioxide.Producers make sugars and starches.

Revolt · Accepted Answer

Animals break down food molecules to obtain energy.; The remains of producers are broken down by decomposers.; The remains of consumers are broken down by soil decomposers.

Succession and Extinction Answers

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