AP BIOLOGY

ECOLOGY

HUMANS AND THE BIOSPHERE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
____ is the sum total of the genetically based variety of all organisms in the biosphere.
A
Biodiversity
B
Ecosystem diversity
C
Genetic Diversity
D
Species Diveristy
Explanation: 

Detailed explanation-1: -Biodiversity refers to vary abilities among plants, animals and microorganisms. It describes richness and life on earth. Different types of biodiversity includes genetic diversity, specialist diversity and ecological diversity. In sum, total biodiversity is the total variety of life on earth.

Detailed explanation-2: -Biodiversity refers to the variety of living species on Earth, including plants, animals, bacteria, and fungi.

Detailed explanation-3: -Biodiversity is the total of all genetically based variation in all organisms in the biosphere. Many medicines were first discovered in wild species. Genetic diversity is important in agriculture.

Detailed explanation-4: -The biosphere supports between 3 and 30 million species of plants, animals, fungi, single-celled prokaryotes such as bacteria, and single-celled eukaryotes such as protozoans (Figure 1).

Detailed explanation-5: -Usually three levels of biodiversity are discussed-genetic, species, and ecosystem diversity. Genetic diversity is all the different genes contained in all individual plants, animals, fungi, and microorganisms. It occurs within a species as well as between species.

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