4: a species is a group of interbreeding natural populations that are reproductively isolated from other such groups. Process of Speciation. The process of speciation is a 2 stage process in which reproductive isolating mechanisms arise between groups of populations.
Answer: Erosion and deposition
Explanation: As the water ran through and against the river banks and land, it slowly begins to erode. Also, as deposition occurs (Deposition-When a river deposits the silt and other things in it out into the ocean or where ever it empties.) it creates a delta.
Answer:
C
Explanation:
Remember that a niche is an inhabited areas where organisms essentially behave a little like humans each filling their own individual role. These aren't extremely common to find but the whole concept of it is that these organisms will function peacefully and trying to help one another survive. C is correct because with minimal resources you will lose that sense of tranquility and now fight it out for who is the fittest for the environment
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A large number of living organisms obtain energy by cellular respiration
