The first plants to colonize land were the
A. pteridophytes.
B. bryophytes.
C. gametophytes.
D. lycophytes.
Answer: B
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Natural selection that shifts the adaptation of an entire populations is
a. stabilizing selection. b. directional selection. c. disruptive selection. d. artificial selection. e. sexual selection.
People who see themselves as fat no matter how thin they become are suffering from
a. anorexia nervosa. b. bulimia. c. obsessive compulsive disorder. d. oppositional defiance disorder. e. passive-aggressive disorder.
Once uterine contractions have begun, the female body releases several hormones that act in a positive feedback loop. The purpose of this feedback loop is ________.
A. to promote the development of a new follicle B. to ensure continued contractions until labor is complete C. inhibit the release of prostaglandins D. decrease the number of oxytocin receptors in the uterus
Exocytosis is stimulated by regional increases in cytoplasmic ________ concentration
Fill in the blank with correct word.