Unit 4: Climate Impacts on the Biosphere

Front

What are algal blooms?

Back

Rapid increases in the population of algae in water bodies, often due to nutrient pollution.

Front

How do algal blooms affect zooplankton populations?

Back

They can decrease zooplankton populations due to reduced oxygen levels in the water.

Front

What is parasitism?

Back

A relationship where one organism (the parasite) benefits at the expense of another organism (the host).

Front

Give an example of parasitism in nature.

Back

Mistletoe growing on trees and taking their nutrients.

Front

What happens to elk populations when wolves are removed from an ecosystem?

Back

Elk populations can increase, leading to overgrazing and reduced plant life.

Front

What is a consumer in a food web?

Back

An organism that obtains energy by eating other organisms.

Front

What is the role of producers in an ecosystem?

Back

Producers, like plants, create their own food through photosynthesis and provide energy for consumers.

Front

How does a decrease in plant population affect carbon dioxide levels in the atmosphere?

Back

It leads to an increase in carbon dioxide levels due to reduced photosynthesis.

Front

What is the impact of overgrazing on plant life?

Back

Overgrazing can lead to reduced plant diversity and health, and soil erosion.

Front

Define mutualism.

Back

A symbiotic relationship where both organisms benefit from the interaction.