An ecological hot spot is an area where a) many habitats and species are at high risk of extinction. b) species diversity is too high. c) hunting is encouraged. d) habitats and species show a high amount of biodiversity.

The Correct answer is A

Many habitats and species are at high risk of extinction.

Explanation:

An ecological hot spot is an area where

Habitats and species are healthy.An ecological hot spot is an area that is outstanding with biological diversities or high biological values.These values can be benefited to those species which is about to get extinct soonThe Concept of the ecological hot spot is based is on the approach to conserve the Biodiversity.

Cladistics-This way(method) groups all the descendants from a common radiation into a clade as a related group and no others.Phylogeny- is a way of tracking evolutionary relationships based on shared characters between different species

Explanation:

Cladistics is concerned with entire branchings. This way(method) groups all the descendants from a common radiation into a clade as a related group and no others. The clades are monophyletic.

Cladistics is a narrower definition of an older, less precise concept now days.

Phylogeny is a way of tracking evolutionary relationships based on shared characters between different species.. This method allows convergent characters to be grouped despite their having followed a separate evolutionary path.  

Cladistics is a way (method) of grouping the related branches based on sharing derived characters within the group. However, these characters are not found in any  other species except by convergence.