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Impact of Algal Blooms on Aquatic Ecosystems

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Impact of Algal Blooms on Aquatic Ecosystems

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Questions and Answers

What role do symbiotic and asymbiotic nitrogen-fixing bacteria play in soil enrichment?

Increasing soil acidity levels

Breaking down organic matter in the soil

Enhancing the soil's nutrient content by fixing nitrogen (correct)

Producing harmful chemicals in the soil

Which type of microorganism is commonly used as a biofertilizer for enhancing soil fertility?

Blue-green algae (correct)

Virus

Fungi

Bacteria causing crown gall disease

What is a possible consequence of eutrophication in aquatic ecosystems?

An increase in fish diversity

Harmful algal blooms suffocating aquatic life (correct)

Decreased algal growth

Improved water quality

How do biopesticides differ from synthetic pesticides regarding their effects on insects?

Biopesticides are selective, targeting specific insect groups Signup and view all the answers

What is a primary disadvantage of using fungal pesticides as biopesticides?

High cost Signup and view all the answers

Why are biopesticides recommended for use only in the morning?

To prevent damage by ultraviolet light, radiation, and heat Signup and view all the answers

What distinguishes parasitoids from predators in terms of their relationship with their host?

Predators kill their host insect while parasitoids keep them alive Signup and view all the answers

Which type of bacteria is commonly associated with the development of crown gall disease?

Pathogenic bacteria found in soil Signup and view all the answers

What could be a challenge in storing and utilizing biopesticides compared to synthetic pesticides?

Availability of specialized application tools Signup and view all the answers

Which of the following statements best describes the role of blue-green algae in soil enrichment?

They convert atmospheric nitrogen into plant-usable forms Signup and view all the answers