A couple has five sons. What is the probability that their next child will be a girl?

A. 50%
B. 25%
C. 100%
D. 75%
E. 0%


Answer: A

Biology & Microbiology

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Red blood cells, also known as __________, contain the hemoglobin that functions in rapid transport of oxygen. Fill in the blank(s) with the appropriate word(s)

Biology & Microbiology

The pituitary gland is controlled by the

a. pons. b. corpus callosum. c. medulla oblongata. d. thalamus. e. hypothalamus.

Biology & Microbiology

A flower has four copies of each chromosome. This is an example of ________

Fill in the blank(s) with correct word

Biology & Microbiology

In general, the vessels that return blood to the heart in a closed circulatory system are referred to as

A. arteries. B. veins. C. capillaries. D. sinuses. E. auxiliary hearts.

Biology & Microbiology