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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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
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