Answer: C. Temperate forests
Temperate forests contains the most biodiversity of deciduous tree species. These deciduous trees shed their leaves once in a year. The temperate forests are found in the Northern Hemisphere, North America, East Asia and Central and Western regions of Europe. The deciduous trees have broad leaves. Appalachian oak, hemlock, maple and pine are some of the deciduous trees species found in temperate forests.
Answer:
knowledge and valuable resources are shared among scientists
Explanation:
The best benefit and reason for joining a membership in a research community is that knowledge and valuable resources are shared among scientists. Since the entire community is working towards a common goal, then gaining information from everyone in order to get closer to that goal is priceless. Also, the ability to use high-end resources that would be impossible to use as a lone scientist due to its high price is also a very valuable benefit.
Carbon, Hydrogen and oxygen.