The vessels that carry blood away from the heart in a closed circulatory system are referred to as
A. arteries.
B. veins.
C. capillaries.
D. sinuses.
E. auxiliary hearts.
A. arteries.
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Imagine you conduct a parabiosis experiment with two strains of mice, one of which lacks a functional leptin gene (ob strain) while the other lacks a functional receptor for this hormone (db strain). Which of the following outcomes would you observe?
A. no weight change in the ob mouse B. no weight change in the db mouse C. increased body weight in the ob mouse D. decreased body weight in the ob mouse E. decreased body weight in the db mouse
Which cells cannot be used to produce a karyotype?
A. red blood cells B. epithelial cells C. skeletal muscle cells D. white blood cells E. smooth muscle cells
Multicellular algae come in different shapes
What will be an ideal response?
When insulation fails, many animals resort to ________, which is a form of involuntary muscular activity that increases heat production
Fill in the blank(s) with correct word