MAB stands for-
a. Man and biosphere programme
b. Man, antibiotic and bacteria
c. Man and biotic community
d. Mayor, Anderson and Bishby

Answer Verified Verified
Hint: An intergovernmental program that tackles problems related to issues related to science, the environment, society, and development in various ecosystems; from mountain regions to aquatic, coastal, and inland areas; from tropical forests to drylands and urban regions.

Complete answer:
> Option A is correct. MAB stands for The Man and the Biosphere program is an intergovernmental science program launched by UNESCO in 1971 which aims to create a scientific basis for improving relations between people and their environment. This program provides a unique platform for research and development collaboration, capacity-building, and networking to share information, knowledge, and experience on three interlinked issues: loss of biodiversity, climate change, and sustainability.

> Option B is incorrect. Most antibiotics, like penicillin, function by targeting the bacterial cell wall. Specifically, the drugs prevent the bacteria from synthesizing a molecule called peptidoglycan in the cell wall which gives the wall the strength it needs to survive in the human body.

> Option C is incorrect. An ecosystem's biotic components are the life-forms that inhabit it. The life forms of an ecosystem help in the transmission and energy cycle. They are grouped in terms of how they obtain energy. In the ecological pyramid, humans are an example of the top or tertiary consumer.

> Option D is incorrect. The Man and the Biosphere Program (MAB) program not only leads to a deeper understanding of the environment but also encourages greater participation of scientists and experts in the development of policy about the wise use of biodiversity. Therefore, MAB does not stand for Mayor, Anderson, and Bishby.

Hence, The correct answer is option (A).

Note: MAB integrates social and natural sciences, economics, and education to enhance human livelihoods and share benefits equitably, and to preserve natural and controlled ecosystems, thus fostering creative, socially and culturally relevant, and environmentally sustainable approaches to economic growth.
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