Four of the following are extraembryonic membranes of the amniote egg. Which one is the exception?

A. Albumen
B. Amnion
C. Chorion
D. Allantois
E. Yolk sac


Answer: A

Biology & Microbiology

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Which pair of species would be expected to have fewer genetic differences: orangutans and gorillas or gorillas and humans? Why?



A. Gorillas and humans because their common ancestor (C) is more recent than that of orangutans and gorillas (B).
B. Gorillas and humans because their common ancestor (B) is more recent than that of orangutans and gorillas (D).
C. Gorillas and orangutans because their common ancestor (C) is more recent than that of humans and gorillas (B).
D. Humans and orangutans because their common ancestor (C) is more recent than that of orangutans and gorillas (D).

Biology & Microbiology

Cilia sweep the released mature oocytes from ovaries into the

A. cervix. B. uterine tubes. C. pubic symphysis. D. uterus. E. vagina.

Biology & Microbiology

Certain traits will have been lost from the gene pool forever. Some may be obvious, like people with red hair or double jointed thumbs. Others will be less obvious, like the ability to process cholesterol or being allergic to peanuts. This loss of diversity in a reduced population is called ________.

A) gene flow B) genetic drift C) bottleneck effect D) founder effect

Biology & Microbiology

Four of the five choices listed below are related by

their description of enzyme properties. Select the exception. a. specificity b. active sites c. activation energy d. substrate e. catalyst

Biology & Microbiology