Review ECOLOGY B.13ABCD

Front

What is lost to the environment at each trophic level of an ecosystem?

Back

Heat

Front

What type of relationship exists between the oak mistletoe and the tree it grows on?

Back

Parasitism

Front

What negative impact might occur when a farmer introduces a predator bird to control insect populations?

Back

The birds will consume beneficial insects, as well as the pest species.

Front

How does a decrease in the sea otter population affect the kelp population?

Back

The sea urchin population would increase causing the kelp population to decrease.

Front

What is the effect of a wildfire on carbon dioxide levels in a forest area?

Back

Less carbon dioxide would be removed from the atmosphere in the area by plants.

Front

Define commensalism in ecological relationships.

Back

A relationship where one organism benefits and the other is neither helped nor harmed.

Front

What is mutualism? Provide an example.

Back

A relationship where both organisms benefit; for example, bees pollinating flowers.

Front

What is the role of a predator in an ecosystem?

Back

Predators help control the population of prey species, maintaining balance.

Front

Explain the concept of biodiversity.

Back

Biodiversity refers to the variety of life in a particular habitat or ecosystem.

Front

What is the significance of keystone species in an ecosystem?

Back

Keystone species have a disproportionately large effect on their environment relative to their abundance.