One example of pinocytosis is the uptake of low-density lipoproteins (LDLs) by endothelial cells.
Answer the following statement true (T) or false (F)
False
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The stomach is different from other digestive organs in that it
A) has folds in the mucosa. B) has three layers of muscle in the muscularis externa. C) secretes digestive juice. D) moves by peristalsis. E) secretes digestive hormones.
Which characteristic is relevant to the endocrine system but not to the nervous system?
a. Releases chemicals into synaptic clefts. b. Chemical signals operate at short distances. c. Speed of response is very rapid. d. Released chemicals may target cells far away. e. Anatomically a "wired" system.
This structure surrounds the early embryo and the fluid that fills it protects the embryo
A) amnion B) allantois C) chorion
Mucosa-associated lymphatic tissues (MALT) include the:
A) tonsils. B) liver. C) kidneys. D) spleen.