Study Set - 8.L.3.3

Front

What is a food web?

Back

A food web is a complex network of feeding relationships among various organisms in an ecosystem, showing how energy and nutrients flow through different trophic levels.

Front

What role do decomposers play in an ecosystem?

Back

Decomposers break down dead organisms and waste, recycling nutrients back into the soil, which supports plant growth.

Front

What is the difference between a primary consumer and a secondary consumer?

Back

Primary consumers are organisms that eat producers (plants), while secondary consumers eat primary consumers.

Front

What is the significance of bacteria in decomposition?

Back

Bacteria are the most important decomposers, as they break down organic matter, facilitating nutrient cycling in ecosystems.

Front

How does an increase in a predator population affect prey populations?

Back

An increase in a predator population typically leads to a decrease in prey populations due to increased predation.

Front

What are producers in an ecosystem?

Back

Producers are organisms, like plants and algae, that create their own food through photosynthesis, forming the base of the food chain.

Front

What is a carnivore?

Back

A carnivore is an organism that primarily eats other animals.

Front

What is an omnivore?

Back

An omnivore is an organism that eats both plants and animals.

Front

What is the role of krill in the Antarctic food chain?

Back

Krill are primary consumers that feed on phytoplankton and are a crucial food source for larger animals like seals and whales.

Front

What happens to the algae population if the shark population increases?

Back

The algae population may increase if the octopus population decreases, as fewer octopuses would mean less predation on herbivores that consume algae.