Biodiversity hotspots: A. house only 10% of all species of vascular plants. B. are home to nearly 20% of the world's population. C. are all located in tropical regions. D. contain few endemic species. E. all of these choices are correct

Biodiversity hotspots are home to nearly 20% of the world's population. Option B is most accurate.

Explanation:

A biodiversity hotspot is a biogeographic region with significant levels of biodiversity that is threatened by human habitation.

Biodiversity hotspots host their diverse ecosystems on just 2.3% of the planet's surface, however, the area defined as hotspots covers a much larger proportion of the land, so much that it hosts about twenty percent of the world's population.

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.