De answer is A!!!!!!!!!!!!!!!!!!!!!!!!!!!!
hope it helps!!!!!!!!!!!!!!!!!
a is right!!!!!!!!!!!!!
The answer to the question is that it is True
There is one extra 21 comosome which is why it is down sydrome.
Answer-E,A,H,C, G, D,F,B
Explanation 1. Community- The interacting populations within a geographic area
2. Biocide-a. A substance that is capable of destroying living organisms
3.Habitat- h. The environmental situation in which an organism is generally found
4. Biosphere- The portion of the earth's surface, water, and air that can support life
5. Ecosystem- g. A system formed by the interactions of communities of organisms with each other and the environment
6.Cell- d. The simplest structure that exhibits all of the characteristics of life
7. Ecological niche- f. The role or position that a species occupies in a community
8.Biome- b. All the communities and ecosystems found under a given set of climatic conditions
