How does mass extinction affect species that survive?

there are no surviving species if a mass extinction occurs.

they will soon become extinct.

they combine gene pools.

they fill new roles in the changed environment.

Which taxon group is more specific, in regards to organisms that are in that group? mammalia animalia

Check all that apply diatoms are marine algae that have a shell made of silica, what are some of the uses of the silica shell after the diatoms die? 1.the shells make up the diatomaceous earth used in filters 2.it can be used as an ingredient in abrasives 3.they are used in food products 4.the shells can be used in some insulating materials

Arepair man charged $93.06 the price included 2 hours of labor and 40 service charge how much does the repairmen charge per hour for labor?