A population descending from a single organism or pure culture isolate is called a ________.
A. subspecies
B. strain
C. species
D. genus
Answer: B
You might also like to view...
The infective larvae of the parasite S. stercoralis penetrate the skin and migrate through the circulatory system to the heart and lungs. The organism enters the bronchial tree and is then swallowed, entering the digestive tract, where the organism matures into an adult worm. This parasite is classified as which type of infection?
a. Pinworm b. Threadworm c. Whipworm d. Hookworm
It is best to receive an organ transplant from a donor who ________
A) looks like you B) rarely consumes alcohol C) does not have any allergies D) best matches your self proteins
Most researchers believed that modern humans evolved from a common ancestor of
A. Proconsul. B. Homo ergaster. C. Australopithecus afarensis. D. Homo erectus. E. Australopithecus africanus.
The Yellowstone to Yukon Conservation Initiative is a plan to
A) connect all of the national parks in the western United States. B) connect all of the national parks in the United States. C) connect parks in the United States and Canada with protected corridors where wildlife can travel safely. D) create a giant, fenced private land area between the national parks in the United States to create a protected zone for wildlife.