Question: In higher latitudes where lakes freeze over in winter, how do cool fall temperatures help fish make it through the winter?
Answer: the water in contact with the air sinks and mixes with the less oxygenated water in the deeper levels.
Explanation: so its very hard for fish and animal that live in the water in winter so the hybernate
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(jacemorris04)
Answer:
This implies that DNA and proteins evolved after RNA.
Explanation:
It is believed that RNA predated today's cells in evolutionary history. RNA existed as the genetic material of the primitive cells of the time that were mainly constituted of globules of fat oil suspended in water in the oceans and lakes. Even in cells today, RNA molecules themselves can act as catalysts such as in the case of peptidyl transferase reaction that takes place on the ribosome.
Answer:
Explanation:
a) Drug X binds to the secondary site or co-agonist site of the receptor since it has no effect on contraction.
b) Drug Y binds to the primary site or agonist site of the receptor since it elicits contraction when aorta is exposed to it.
c) Drugs X and Y have a synergistic effect because the sum of their forces measured independently is larger than when they are tested simultaneously.
Answer:
Respondent agreed the continental drift theory, which stated that continents are constantly moving on Planet's crust. Pangaea started to break up over time, and the continents gradually shifted to their current locations.
Explanation:
Darwin believed in Darwinism which is a theory of biological evolution stating that all species of organisms arise through a process called natural selection to compete, survive, and reproduce