Food Webs Redemption

Last updated 12 months ago

5 questions

1

The feeding relationships between several marine organisms are shown in the food web below.

Based on the diagram, which of the following best describes the most likely direct effect of a decline of the small fish population on the marine food web?

The jellyfish population will migrate to an area with more available habitat for eggs.

The jellyfish population will increase because of decreased predation.

The jellyfish population will experience local extinction because of a lack of food resources.

The jellyfish population will decrease from the increase in the sea turtle and tuna populations.

Primary producers in a lake ecosystem store approximately 25,000 kcal/m2/yr of energy in their biomass. Which of the following identifies the most likely amount of energy available to a tertiary consumer in this ecosystem?

25 kcal/m2/yr

250 kcal/m2/yr

2,500 kcal/m2/yr

25,000 kcal/m2/yr

The net primary production of a pine forest on a lava flow on Mount Fuji is about 175,000kcal/m2/yr, and the plant respiration is estimated to be 115,000kcal/m2/yr. What is the total amount of energy transferred during photosynthesis for this ecosystem?

60,000 kcal/m2/yr

115,000 kcal/m2/yr

175,000 kcal/m2/yr

290,000 kcal/m2/yr

In a given ecosystem, producers convert solar energy into 15,000 kcal of chemical energy stored in organic compounds. Which of the following is the most likely amount of energy available to secondary consumers?

1.5 kcal

150 kcal

1,500 kcal

13,500 kcal

Which of the following best describes the net primary productivity of an ecosystem?

Net primary productivity is the amount of energy lost through respiration by producers added to the gross primary productivity of an ecosystem.

Net primary productivity is the amount of energy captured by producers through photosynthesis over time.

Net primary productivity is the amount of energy lost by producers through respiration over time.

Net primary productivity is the amount of energy lost through respiration by producers subtracted from the gross primary productivity of an ecosystem.

The feeding relationships between several marine organisms are shown in the food web below.

Based on the diagram, which of the following best describes the most likely direct effect of a decline of the small fish population on the marine food web?

The jellyfish population will migrate to an area with more available habitat for eggs.

The jellyfish population will increase because of decreased predation.

The jellyfish population will experience local extinction because of a lack of food resources.

The jellyfish population will decrease from the increase in the sea turtle and tuna populations.

Primary producers in a lake ecosystem store approximately 25,000 kcal/m2/yr of energy in their biomass. Which of the following identifies the most likely amount of energy available to a tertiary consumer in this ecosystem?

25 kcal/m2/yr

250 kcal/m2/yr

2,500 kcal/m2/yr

25,000 kcal/m2/yr

The net primary production of a pine forest on a lava flow on Mount Fuji is about  175,000kcal/m2/yr, and the plant respiration is estimated to be 115,000kcal/m2/yr. What is the total amount of energy transferred during photosynthesis for this ecosystem?

60,000 kcal/m2/yr

115,000 kcal/m2/yr

175,000 kcal/m2/yr

290,000 kcal/m2/yr

In a given ecosystem, producers convert solar energy into 15,000 kcal of chemical energy stored in organic compounds. Which of the following is the most likely amount of energy available to secondary consumers?

1.5 kcal

150 kcal

1,500 kcal

13,500 kcal

Which of the following best describes the net primary productivity of an ecosystem?

Net primary productivity is the amount of energy lost through respiration by producers added to the gross primary productivity of an ecosystem.

Net primary productivity is the amount of energy captured by producers through photosynthesis over time.

Net primary productivity is the amount of energy lost by producers through respiration over time.

Net primary productivity is the amount of energy lost through respiration by producers subtracted from the gross primary productivity of an ecosystem.

Food Webs Redemption

Food Webs Redemption

The feeding relationships between several marine organisms are shown in the food web below.Based on the diagram, which of the following best describes the most likely direct effect of a decline of the small fish population on the marine food web?

Primary producers in a lake ecosystem store approximately 25,000 kcal/m2/yr of energy in their biomass. Which of the following identifies the most likely amount of energy available to a tertiary consumer in this ecosystem?

The net primary production of a pine forest on a lava flow on Mount Fuji is about 175,000kcal/m2/yr, and the plant respiration is estimated to be 115,000kcal/m2/yr. What is the total amount of energy transferred during photosynthesis for this ecosystem?

In a given ecosystem, producers convert solar energy into 15,000 kcal of chemical energy stored in organic compounds. Which of the following is the most likely amount of energy available to secondary consumers?

Which of the following best describes the net primary productivity of an ecosystem?

The feeding relationships between several marine organisms are shown in the food web below.

Based on the diagram, which of the following best describes the most likely direct effect of a decline of the small fish population on the marine food web?