The epidermis is classified as a(n):
A) Cell
B) Tissue
C) Organ
D) System
Answer: B) Tissue
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The heads of the metatarsals articulate with the ____________________.
Fill in the blank(s) with the appropriate word(s).
When a catecholamine or peptide hormone binds to receptors on the surface of a cell,
A) a second messenger appears in the cytoplasm. B) the cell becomes inactive. C) the hormone is transported to the nucleus where it alters the activity of DNA. D) the cell membrane becomes less permeable. E) None of the answers are correct.
During the process of implantation, the inner cell mass (ICM) gives rise to three embryonic membranes. Which of the following is not one of these membranes?
A) amnion B) yolk sac C) allantois D) chorion
Explain the effects of the catecholamines on the body during the fight-or-flight response and how these effects help us deal with short-term stress
What will be an ideal response?