Answer:
In addition to maintaining international peace and security, the United Nations protects human rights, delivers humanitarian aid, promotes sustainable development and upholds international law.
Explanation:
They observe it, run tests on many different things, and do expirments
All of the above- 1, 2, and 3 These introduce variation into the chromosome or into the zygote and create cells and offspring unique from the parents.
The primary<span> motor </span>cortex<span> (Brodmann area 4) is a brain region that in humans is located in the dorsal portion of the frontal lobe.</span>
1. One reason is extinctions happen because of some kind of change in the environment where a life form lives. While some species can adapt to the changes, others die, and if enough die, the species becomes extinct. These are some of the biggest factors in the extinctions of particular species. 2. Contaminants in the environment, such as pesticides.