Endosperm tissue of angiosperms has what ploidy level?
A. n
B. 2n
C. 3n
D. 4n
E. 8n
C. 3n
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The type of element is determined by the ________
a. number of electrons b. atomic number c. mass number d. number of neutrons
Bipedal behavior and a skeleton adapted for
bipedalism were not weeded out by natural selection because they a. improved stability during locomotion. b. enabled the forelimbs to efficiently manipulate the environment. c. accelerated the development of binocular vision. d. improved stability during locomotion and enabled the forelimbs to efficiently manipulate the environment. e. improved stability during locomotion, enabled the forelimbs to efficiently manipulate the environment, and accelerated the development of binocular vision.
What typically has to happen before a fruit develops? I) flowering II) pollination III) double fertilization
A) I only B) I and II C) II and III D) I, II, and III
Which fuel is used most readily by the body during high intensity physical activities?
a. carbohydrates b. starch c. amino acids d. saturated fats