Answer: Increasing water consumption that decreases the flow of clean water from the
springs that feed the river
Explanation: Because the salamanders have less clean water, pollution becomes more of a problem, also all of the other options would help the salamanders.
<span>A tropism is a movement of an organism toward or away from a stimulus. A positive tropism is when the organism moves toward the stimuli. A negative tropism is when the organism moves away from the stimuli. So, your answer will be negative tropism, since the stem is growing up and out of the soil, AWAY from gravity.</span>
The correct complementary RNA strand would be answer B!