Homeostasis Unit Review

Front

What is homeostasis?

Back

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

Front

What is a dependent variable in an experiment?

Back

The dependent variable is the variable that is measured or observed in an experiment, often responding to changes in the independent variable.

Front

What role do plants play in the carbon cycle?

Back

Plants absorb carbon dioxide during photosynthesis and release oxygen, which is essential for animal life.

Front

What is the significance of heart rate in homeostasis?

Back

Heart rate is a vital sign that indicates how well the body is maintaining homeostasis, especially in response to stress or changes in activity.

Front

How does the elk population affect aspen tree growth?

Back

When the elk population decreases, aspen tree growth increases due to reduced browsing pressure on young trees.

Front

What is the relationship between oxygen and carbon dioxide in the carbon cycle?

Back

Plants produce oxygen as a byproduct of photosynthesis, which animals need for respiration, while animals produce carbon dioxide, which plants need for photosynthesis.

Front

What is the typical recovery time for heart rate after physical exertion?

Back

The heart rate typically returns to normal within a few minutes after physical exertion, depending on the intensity of the activity.

Front

What is the importance of kelp in marine ecosystems?

Back

Kelp provides habitat and food for various marine species, playing a crucial role in maintaining biodiversity in ocean ecosystems.

Front

Define the term 'browsing' in ecological terms.

Back

Browsing refers to the act of animals feeding on leaves, twigs, and other high-growing vegetation.

Front

What factors can influence heart rate during exercise?

Back

Factors include the intensity of the exercise, the individual's fitness level, and environmental conditions.