The study of the function of all of the body's parts is
A. anatomy.
B. physiology.
C. pathology.
D. histology.
E. genetics.
Answer: B. physiology.
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A friend asks you how exocrine glands differ from endocrine glands. She knows that both form from invaginated epithelium. How do you respond?
A. Exocrine and endocrine glands are essentially the same, both produce products that are secreted to the skin's surface. B. Exocrine glands produce hormones which enter the blood stream, while endocrine glands secrete sweat and oil directly to the surface of the skin. C. Endocrine glands produce hormones which enter the blood stream, while exocrine glands secrete sweat and oil directly to the surface of the skin. D. Exocrine glands are found in the thoracic cavity while endocrine glands are located in the pleural cavity. E. The liver is an endocrine gland that secretes directly into epithelial tissues. The pituitary gland is an exocrine gland that secretes into the blood stream.
When the pollen of one plant species will not germinate on the flower of another species, it is an example of
A) temporal isolation. B) hybrid inviability. C) hybrid infertility. D) hybrid vigor. E) gametic incompatibility.
Which of the following is a valid difference between traditional (selective breeding) and modern (genetic engineering) forms of biotechnology?
A) Genetic engineering can use genes from unrelated species, whereas selective breeding must use genes from the same or very closely related individuals. B) Selective breeding can be done much more quickly than can genetic engineering. C) Genetic engineering can alter the DNA sequence of entire populations, whereas selective breeding cannot.
A new species, ________, was recently shown to have two membranes, like a Gram-negative bacterium, but be phylogenetically related to the Gram-positive family Veillonellaceae.
Fill in the blank(s) with the appropriate word(s).