Most commonly, fertilization by a sperm cell of an egg cell occurs in the fallopian tube rather than the uterus.
a. true
b. false
Ans: a. true
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To reduce brain swelling by pulling water out of brain cells, a substance can be injected intravenously to increase the osmotic pressure of interstitial fluid. Which of the following properties must this substance lack in order to be effective?
A) permeable to capillary endothelium B) nontoxic to neurons C) permeable to brain plasma membranes D) impermeable to brain plasma membranes E) soluble in water
Which part of the neuron contains the nucleus?
A. Dendrite B. Axon C. Soma D. Axon hillock E. Telodendrion
Which cells recognize and destroy tumors in a non-specific fashion, without requiring prior exposure to antigens?
A. Plasma cells B. Natural killer cells C. Macrophages D. Dendrocytes E. B cells
The CNS is
A. Somatic and Autonomic B. Potential and Graded potential C. Brain and Spinal Cord D. None of the above