Nervous tissue consists mainly of neurons and collagen fibers
Indicate whether the statement is true or false
FALSE
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Water accounts for 50% of the weight of a young adult female and 60% of a young adult male. What kind of molecule is found at "E"?
A. Hydrogen atom B. Water molecule C. Hydrogen bond D. Oxygen atom E. Polar covalent bond
A(n) ________ plane separates the body into superior and inferior parts.
A. frontal B. sagittal C. coronal D. transverse E. oblique
The postganglionic axons of the sympathetic branch of the ANS are considered short.
Answer the following statement true (T) or false (F)
When a sperm cell comes into contact with an egg cell, there is a change in the electrical charge across the plasma membrane and various channel proteins close. These channels would be called
A. chemical-gated channels. B. ligand-gated channels. C. open-gated channels. D. nongated ion channels. E. voltage-gated channels.