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Chapter 46: Q. 9 (page 1369)

The position of an organism along a food chain is known as its ________. a. locus b. location c. trophic level d. microcosm

Short Answer

Expert verified

The correct option is c. trophic level .

Step by step solution

01

Step 1. Given information

The term 鈥渇ood chain鈥� is sometimes used metaphorically to describe human social situations. Individuals who are considered successful are seen as being at the top of the food chain, consuming all others for their benefit, whereas the less successful are seen as being at the bottom.

02

Step 2. Explanation

The correct option is c. trophic level .

. In ecology, a food chain is a linear sequence of organisms through which nutrients and energy pass: primary producers, primary consumers, and higher-level consumers are used to describe ecosystem structure and dynamics. There is a single path through the chain. Each organism in a food chain occupies what is called a trophic level.

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Most popular questions from this chapter

Which of the following approaches would be the most effective way to reduce greenhouse carbon dioxide?

a. Increase waste deposition into the deep ocean.

b. Plant more environmentally-suitable plants.

c. Increase use of fuel sources that do not produce carbon dioxide as a by-product.

d. Decrease livestock agriculture

In the English Channel ecosystem, the number of primary producers is smaller than the number of primary consumers because

a. the apex consumers have a low turnover rate

b. the primary producers have a low turnover rate

c. the primary producers have a high turnover rate

d. the primary consumers have a high turnover rate

Which of the following statements about the nitrogen cycle is false?

a. Ammonification converts organic nitrogenous matter from living organisms into ammonium (NH4 + ).

b. Denitrification by bacteria converts nitrates (NO3 鈭� ) to nitrogen gas (N2 ).

c. Nitrification by bacteria converts nitrates (NO3 鈭� ) to nitrites (NO2 鈭� ).

d. Nitrogen fixing bacteria convert nitrogen gas (N2 ) into organic compounds.

Compare and contrast food chains and food webs. What are the strengths of each concept in describing ecosystems?

Describe nitrogen fixation and why it is important to agriculture.
See all solutions

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