What becomes more likely to occur in a small population? Check all that apply.
A. the Allee effect
B. increased genetic diversity
C. extinction vortex
D. increased genetic drift
E. increased edge effect
Answer: D
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Researchers primarily use transgenic animals to do which of the following?
a. Study the effects of recombinant genes. b. Extract and manipulate nucleic acids. c. Create multiple copies of mutant genes. d. Regenerate damaged tissue and organs.
Studies of ribosomal RNA (rRNA) sequences indicate that ____ are more closely related to each other
than either one is to ____.
a. plants and fungi; animals b. plants and animals; fungi c. animals and fungi; plants d. animals and bacteria; plants e. fungi and bacteria; plants
________ are preparations of live microorganisms fed to animals to improve intestinal biota.
A) Prebiotics B) Probiotics C) Lantibiotics D) Macrobiotics
Immunodeficiencies are a result of all of the following EXCEPT
A) HIV infection. B) cyclosporine. C) DiGeorge syndrome. D) Hodgkin's disease. E) autoimmune diseases.