ASVAB General Science Biology and Ecology Flashcards
6 cards from real ASVAB practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 ASVAB General Science Biology and Ecology flashcards as text
What is the basic unit of life?
Answer: Cell
The cell is considered the basic structural and functional unit of all living organisms. All life forms are composed of one or more cells.
Which organelle is responsible for producing energy in a cell?
Answer: Mitochondria
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.
What process do plants use to convert sunlight into food?
Answer: Photosynthesis
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.
Which level of ecological organization includes all the organisms of the same species living in a particular area?
Answer: Population
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.
What is the role of decomposers in an ecosystem?
Answer: Break down dead organic matter
Decomposers break down dead organisms and waste products, recycling nutrients back into the soil and making them available for producers to use again.
DNA is composed of repeating units called what?
Answer: Nucleotides
DNA is a polymer made of repeating units called nucleotides. Each nucleotide consists of a sugar (deoxyribose), a phosphate group, and a nitrogenous base.