The biomass of the top predator in an ecosystem is determined by __________. Que

Question

The biomass of the top predator in an ecosystem is determined by __________.

Question 2 options:

all of the above

The source of all carbon in living organisms is __________.

Question 6 options:

hydrothermal vents

Secondary production is limited mainly by __________.

Question 9 options:

temperature

The process of decomposition makes ________ available to bacteria and fungi.

Question 15 options:

O2

Low-moisture conditions favor allocation by a plant to __________.

Question 16 options:

roots

Net primary productivity is generally greatest at __________.

Question 18 options:

the poles

__________ is the amount of accumulated organic matter found in an area at a given time.

Question 20 options:

net photosynthetic rate

ANY HELP IS GREATLY APPRECIATED:)

a) local primary productivity b) ecological efficiencies c) both A and B d) the number of trophic levels e)

all of the above

The source of all carbon in living organisms is __________.

Question 6 options:

a) simple sugars b) carbon dioxide from the atmosphere and water c) carbon-fixing bacteria d) sedimentary rocks e)

hydrothermal vents

Secondary production is limited mainly by __________.

Question 9 options:

a) water availability b) nutrient availability c) primary production d) light availability e)

temperature

The process of decomposition makes ________ available to bacteria and fungi.

Question 15 options:

a) CO2 b) energy c) glucose d) protein e)

O2

Low-moisture conditions favor allocation by a plant to __________.

Question 16 options:

a) leaves b) stems c) fruits d) flowers e)

roots

Net primary productivity is generally greatest at __________.

Question 18 options:

a) tropical latitudes near the equator b) subtropical latitudes (e.g., 25° of latitude) c) temperate latitudes (e.g., 50° of latitude) d) polar latitudes (e.g., 80° of latitude) e)

the poles

__________ is the amount of accumulated organic matter found in an area at a given time.

Question 20 options:

a) gross primary productivity b) net primary productivity c) standing crop biomass d) regeneration load e)

net photosynthetic rate

ANY HELP IS GREATLY APPRECIATED:)

Explanation / Answer

Q2. c. both A and B.

Top predators are those that are not predated by any other anmals in that ecosystem. The biomass of the top predator in an ecosystem is determined by local primary productivity and ecological efficiencies. Ecological efficiency is the transfer of energy from one trophic level into another trophic level (transfer of energy into biomass).

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