Introduction to Producers in Biology

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What do bacteria at underwater vents do to make food?

Respiration

Fermentation

Photosynthesis

Chemosynthesis (correct)

Which organisms are mentioned as part of the complex ecosystem powered by food from chemosynthesis?

Eagles and vultures

Tubeworms and sea stars (correct)

Lions and tigers

Grasshoppers and ants

Why are producer organisms extremely important in the food web?

To form the basis of energy transfers (correct)

To provide shelter for other organisms

To regulate temperature

To control population growth

What can happen if there are too few producers in an ecosystem?

Not enough food to support the ecosystem (D) Signup and view all the answers

What process can lead to an overgrowth of cyanobacteria in an aquatic ecosystem?

Eutrophication (C) Signup and view all the answers

What is the main cause of eutrophication in aquatic ecosystems?

Runoff from crop fertilizers (B) Signup and view all the answers

Which statement best describes the impact of eutrophication on an ecosystem?

It disrupts the balance and causes dead zones (A) Signup and view all the answers

What type of nutrients are typically added to an aquatic ecosystem during eutrophication?

Phosphorus and nitrogen (C) Signup and view all the answers

Why is an overgrowth of cyanobacteria during eutrophication harmful to an ecosystem?

It can disrupt the balance, causing a dead zone (D) Signup and view all the answers

What process do bacteria at underwater vents use to make food?

Chemosynthesis (A) Signup and view all the answers

What can result from an overgrowth of producer organisms in an ecosystem?

Ecosystem collapse (D) Signup and view all the answers

What is a main cause of eutrophication in aquatic ecosystems?

Runoff from crop fertilizers (A) Signup and view all the answers

Why are producer organisms crucial in the food web?

To form the basis of energy transfers in the ecosystem (D) Signup and view all the answers

How does eutrophication usually affect the balance in an aquatic ecosystem?

Causes oxygen depletion (D) Signup and view all the answers

What happens if there are too few producer organisms in an ecosystem?

Decrease in food availability (C) Signup and view all the answers

Which organisms can be part of a complex ecosystem powered by food from chemosynthesis?

Tubeworms and sea stars (A) Signup and view all the answers

What typically leads to the formation of a dead zone in an aquatic ecosystem?

Overgrowth of cyanobacteria (A) Signup and view all the answers

What is the consequence of an abundance of normally limiting nutrients being added to an aquatic ecosystem?

Eutrophication (B) Signup and view all the answers

How does chemosynthesis differ from photosynthesis in terms of energy source?

Chemosynthesis uses inorganic molecules, while photosynthesis uses sunlight (D) Signup and view all the answers