Question

Biodiversity hotspots are the richest and most threatened reservoirs of plant and animal life. They have the maximum number of _____________ species and have lost at least 70% of their original habitats.

a) keystone species
b) endemic species
c) invasive species
d) all of the above

Answer 1

keystone's species is answer

Answer 2

They have maximum number of Endemic species and have lost at least 70% of their original habitats.

Option B

Explanation:

Endemic species are defined as species that are either only found in a particular region of world, and is endemic to that particular area only.  

Biodiversity hotspot requires to fulfill some of important requirements, and some of those requirements are:

• The species present must have above 1500 vascular plant species.
• Must have lost 70 % of their original habitats.
• Must have lot of endemic species.