Which of the following traits is an X-linked recessive disorder?
A. Marfan syndrome
B. cystic fibrosis
C. sickle-cell disease
D. color blindness
E. Tay-Sachs
Answer: D
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Fungus grows well on fruits and many vegetables due to their alkaline pH
Indicate whether this statement is true or false.
The location of the eyes on the front of the head in later primates was especially important in ____
a. seeing color b. detecting light intensity c. predatory behavior d. depth perception e. mating
Hominines include
A. humans, chimpanzees, and gorillas. B. humans, gorillas, and orangutans. C. orangutans, chimpanzees, and gorillas. D. humans, gibbons, and orangutans. E. gorillas, gibbons, and orangutans.
In commensalism ________.
A. the host and commensal cannot be separated and remain viable and the commensal is metabolically dependent on the host B. the commensal is metabolically dependent on the host C. the host and commensal can be separated and remain viable D. the host provides some factor that the commensal cannot get otherwise