Homeostasis Mid Unit Review

Front

What causes the decrease in kelp and otter populations?

Back

Orcas are hunting too many otters which increases urchin populations to eat too much kelp.

Front

Why are producers found at the base of the energy pyramid?

Back

They create all of the energy and therefore have the most energy of all of the trophic levels, beginning the flow of energy in an ecosystem.

Front

What process provides most of the oxygen on Earth?

Back

Photosynthesis.

Front

What is ocean acidification related to?

Back

Climate change, human impact, and fossil fuels.

Front

What happens to calcium carbonate in lower pH solutions?

Back

It dissolves.

Front

Define homeostasis.

Back

Homeostasis is the process by which living organisms maintain a stable internal environment despite external changes.

Front

What role do otters play in the kelp forest ecosystem?

Back

Otters help control urchin populations, which in turn helps maintain kelp health.

Front

Explain the significance of photosynthesis in ecosystems.

Back

Photosynthesis converts solar energy into chemical energy, producing oxygen and organic compounds that are essential for life.

Front

What is the impact of climate change on ocean acidity?

Back

Increased CO2 levels from human activities lead to higher ocean acidity, affecting marine life.

Front

What is the relationship between trophic levels and energy transfer?

Back

Energy decreases as it moves up trophic levels, with producers having the most energy.