Answer: A) Tropical regions have more available niches into which new species can occupy.
Explanation: USATestPrep
Answer:
Merlin's paper discusses two types of data: artifactual and paleoethnobotanical. Give specific examples of each and describe the sources of data and the ...
<span>Helium nuclei have a positive charge of 2+ when observed. Compared to a hydrogen nuclei, we can see that the Helium nuclei is more difficult to fuse as it has a greater charge than Hydrogen 1+. This chemical difference makes the answer true.</span>
Pretty sure that the endocrine system is represented by the diagram
So the answer is endocrine