Within the human genome, 45% of the DNA is composed of what?
A. transposable elements
B. highly repetitive DNA
C. moderately repetitive DNA
D. coding sequences
E. noncoding sequences
A
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An example of commensalism involves which two organisms?
a. acacia trees and ant colonies b. bacteria and legumes c. cattle egrets and cattle d. plants and pollinators e. tapeworms and pigs
A nosocomial infection is
a. Always present but is inapparent at the time of hospitalization. b. Acquired during the course of hospitalization. c. Always caused by medical personnel. d. Only a result of surgery. e. Always caused by pathogenic bacteria.
Which of the following is incorrect regarding facilitated diffusion?
a. It is a passive process. b. It allows the movement of molecules from areas of low concentration to areas of high concentration. c. It may use either channel or carrier proteins. d. It allows the rapid transport of glucose across the membrane.
What macronutrient group includes butter?
What will be an ideal response?