Which one is mechanical weathering? explain why.

Plant root growing-

Dissolving-

This organism is not capable of performing photosynthesis. (horseshoe crab) true false

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

Jason adds the antibiotic penicillin to a bacterial culture. the bacteria develop genetic modifications in their genome, which gives them resistance to the antibiotic penicillin. what caused this genetic modification?