The region in which populations interact with each other and with the physical environment is called a(n)
A. ecosystem.
B. biosphere.
C. community.
D. entity.
E. biosystem.
Answer: A
Biology & Microbiology
You might also like to view...
What fills the space between meninges, a central canal in the spinal cord, and brain ventricles?
a. blood b. plasma c. interstitial fluid d. unmyelinated axons e. cerebrospinal fluid
Biology & Microbiology
When two or more molecules simply mingle, a(n) ____ is created
a. compound b. mixture c. molecule d. ionic compound e. suspension
Biology & Microbiology
Approximately how many olfactory receptors do humans have in their olfactory epithelium?
a. 10 million b. 100,000 c. 200 million d. 50 million e. 500,000
Biology & Microbiology
Which of the following is involved in breathing and protects the heart and lungs?
a) pectoral girdle b) thoracic cage c) vertebral column d) skull
Biology & Microbiology