Which of the following is a characteristic of monocots?
a. veins running parallel to the length of leaves
b. a circular root system with a tap root
c. pollen with three furrows
d. flower parts arranged in multiples of four
a. veins running parallel to the length of leaves
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The term complex as used in the Mycobacterium tuberculosis complex:
a. means that the identification of the organ-ism is complex and is only performed in large reference laboratories. b. is used to describe two or more species whose distinction is complicated and of little or no medical importance. c. refers to a set of organisms that are genet-ically indistinguishable but are phenotyp-ically different. d. refers to different subtypes of the bacteria M. tuberculosis.
The majority Neanderthal fossils have been found in
a. Asia b. india c. Africa d. Europe
Cavitation can occur when what happens?
A. Clouds block sunlight shining on the leaves. B. Root pressure pushes water up the xylem. C. Gas bubbles expand inside a tracheid or vessel member. D. Starch grains block the sieve tubes. E. Stomata get stuck closed.
A botanist has found that the giant saguaro, Carnegiea gigantea, lives in the Sonoran Desert below the freeze line and in some very dry regions (such as Yuma) to the eastern edge of Arizona. She has described the ________ of saguaro
A) vital resource B) habitat C) resource spectrum D) resource band