Water molecules are uncharged and ________
Fill in the blank(s) with correct word
polar
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The difference between fungal endomycorrhizae and fungal endophytes is:
A. Endomycorrhizae live inside fungi and endophytes live inside plants. B. Endomycorrhizae form arbuscules that facilitate exchanges of water and food between the fungus and plant root cells, whereas endophytes invade plant cells and provide the plant with protective antibiotics and toxins. C. Endomycorrhizae are beneficial to its host plant but endophytes harm the host plant. D. Endomycorrhizae form arbuscules on plant roots that produce toxins killing parasitic nematodes, whereas endophytes assist in the transport of water through the plant. E. none of the other choices provided
The primary difference between active transport and facilitated diffusion is that active transport is the only one in which
A) [S]high ? [S]low. B) transporter proteins are required. C) [S]low ? [S]high. D) the concentration gradient provides the necessary energy for movement. E) only water molecules move.
Proteins are synthesized on structures called
A. chromosomes. B. ribosomes. C. mesosomes. D. lysosomes.
One of the keys to understanding altruistic behavior is that ________
A) the end result of what appears to be altruism on face value is actually an increase in the fitness of the "actor" B) Darwin himself recognized that this is a fatal flaw in his theory of natural selection C) other members of the population will share alleles with the "actor" D) altruism is just another form of selfishness