ASVAB General Science Biology and Ecology

Question 1

What is the basic unit of life?

Accepted Answer

Cell

Answer

The cell is considered the basic structural and functional unit of all living organisms. All life forms are composed of one or more cells.

Question 2

Which organelle is responsible for producing energy in a cell?

Accepted Answer

Mitochondria

Answer

Mitochondria are known as the 'powerhouses of the cell' because they generate most of the cell's supply of ATP, which is used as a source of chemical energy.

Question 3

What process do plants use to convert sunlight into food?

Accepted Answer

Photosynthesis

Answer

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize glucose from carbon dioxide and water, releasing oxygen as a byproduct.

Question 4

Which level of ecological organization includes all the organisms of the same species living in a particular area?

Accepted Answer

Population

Answer

A population consists of all individuals of a single species living in the same geographic area at the same time. A community includes multiple species, while an ecosystem includes both living and nonliving components.

Question 5

What is the role of decomposers in an ecosystem?

Accepted Answer

Break down dead organic matter

Answer

Decomposers break down dead organisms and waste products, recycling nutrients back into the soil and making them available for producers to use again.

ASVAB - Armed Services Vocational Aptitude Battery Practice Test

ASVAB - Armed Services Vocational Aptitude Battery Practice Test

ASVAB General Science Biology and Ecology