The pre-embryonic period ends when
A. a morula is formed.
B. the zygote undergoes cleavage.
C. the blastocyst implants in the uterus.
D. the morula develops a trophoblast.
C
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Which enzyme is produced by the salivary glands and begins the chemical digestion of carbohydrates?
A. Salivary amylase B. Salivary maltase C. Salivary sucrase D. Salivary lactase
Type __________ intercalated cells are H+ secreting, HCO3- reabsorbing, K+-reabsorbing cells that actively secrete H+ into the tubular lumen via two types of primary __________ transport mechanisms
Fill in the blank(s) with correct word
A pseudo-unipolar neuron is characterized by the presence of
A. two dendrites. B. three dendrites. C. four dendrites. D. one dendrite. E. no dendrites.
Rigor mortis occurs following death because
a. tropomyosin remains over the myosin binding sites of actin. b. myosin heads attach to actin and are not released due to lack of ATP. c. the myosin becomes misshapen. d. all of the Ca2+ remains within the sarcoplasmic reticulum.