To an evolutionary taxonomist what determines whether two species are placed in the same genus
A. they have similar facial features
B. they share more common ancestors than any other group
C. they share similar mating behaviors
D. they share the same kingdom

Option B. they share more common ancestors than any other group.

Explanation:

Organisms are classified in one group on the basis of similarities and differences between them. In taxonomy, organisms are placed in one group because they share common ancestors so these organisms are closely related to one another in many characteristics such as shape, appearance and genes.

1. glaciers are melting

2. more water going into ocean (water's such as fresh waters, etc)