PreAP Biology S1 Final Exam 2023

Front

What is homeostasis?

Back

Homeostasis is the maintenance of a relatively stable internal environment.

Front

What happens to carbon when humans burn fossil fuels?

Back

Most of the carbon quickly enters the atmosphere as carbon dioxide.

Front

How are predator and prey populations linked?

Back

If the number of prey decreases, then the number of predators will decrease.

Front

What does a logistic growth model indicate about a population?

Back

The population grows following a pattern that includes a period of rapid growth followed by a leveling off.

Front

What is the role of the Sun in photosynthesis?

Back

The Sun provides energy that helps convert carbon dioxide and water into food for plants.

Front

Define the term 'ecosystem'.

Back

An ecosystem is a community of living organisms interacting with their physical environment.

Front

What is the significance of biodiversity?

Back

Biodiversity contributes to ecosystem resilience, productivity, and stability.

Front

Explain the carbon cycle.

Back

The carbon cycle is the process by which carbon is exchanged among the atmosphere, land, water, and living organisms.

Front

What is the difference between exponential and logistic growth?

Back

Exponential growth occurs without limits, while logistic growth accounts for carrying capacity and environmental resistance.

Front

What is a food chain?

Back

A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another.