Biodiversity hotspots: Select one: 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

B. Home to nearly 20% of the world's population.

Explanation:

According to Myers edition of hotspot maps, it must contain at least 0.5% or 1,500 species of vascular plants as endemics, and it has to have lost at least 70% of its primary vegetation. Biodiversity hotspots host their diverse ecosystems on just about 2.4% of the planet's surface.

In summary, biodiversity hotspot is defined as a biogeographic region that is a significant reservoir of biodiversity. The term biodiversity hotspot specifically refers to 25 biologically rich areas around the world that have lost at least 70% of their original habitat. It was estimated in 1995 that more than 1.1 billion people, nearly 20% of world population, were living within the hotspots, an area covering about 12% of Earth's terrestrial surface.

answer:

the water molecules are transferred from the roots to the stem or top parts of the tall tree because of important properties of water which are adhesion, cohesion and capillary action. cohesion is the property of water molecules keeps water molecules in a combined state by sharing of bonds between them at the atomic level. adhesion allows the interaction of water molecules with other substances or substrate. adhesion will cause the attachment of water molecules to the wall of the vessel (xylem) of the plant. capillary action occurs when the adhesive force to the vessel wall is stronger than the cohesive force between water molecules. capillary action mimics the transfer of water from a tube or pipe. in this way water utilizes its property to transfer water from down to top level of the plant.  

all matter is made up of atoms

in any element all atoms are the same

elements in a compound are always in a constant ratio: apex