The small lymphatic capillaries that reside in the small intestine and absorb fats are known as
A. microvilli.
B. gastric glands.
C. duodenal pits.
D. mesenteries.
E. lacteals.
Answer: E
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Which hormone is responsible for the enlargement of the mammary glands during pregnancy?
a. estrogen b. luteinizing hormone c. oxytocin
d. progesterone e. prolactin
In comparing mitosis and meiosis, which of the
following statements is true? a. Meiosis I is more like mitosis than is meiosis II. b. Both processes result in four cells. c. Pairing of homologues occurs in both. d. Chromatids are present only in mitosis. e. Meiosis II resembles mitosis.
The antidiuretic hormone
a. controls water balance in the kidneys only. b. controls the concentration of ammonia in the urine. c. decreases blood pressure. d. changes the permeability of the urine-conducting tubules so that the interstitial fluid increases. e. controls water balance in the interstitium only.
What is an effect of continental drift on biological species?
a. It results in mass extinctions. b. Over time, an organism adapted to a particular climate may find it difficult to survive in the climate change associated with continental drift. c. Continental drift led to the evolution of humans. d. Continental drift limits our view of natural selection. e. It limits diversification of biological species.