This question is incomplete. However, it seems to indicate that the vials contain aerobic bacteria. These are bacteria that require oxygen to respire and grow. The bacteria in the sealed vial will be deprived of oxygen, and would therefore not grow. Those in the crushed vial will be exposed to oxygen and would therefore be able to grow.
The last one I’m pretty sure, we learned about this last year in science
The scratch test.
The scratch test is used by scientists and people who study rocks and minerals to determine the strength of the rock. They have the scratchers numbered one through ten and scratch the rock or mineral until the scratcher makes a mark in the mineral then they know the strength of the rock.
Answer:
Replication occurs before a cell divides to ensure that both cells receive an exact copy of the parent’s genetic material
Explanation:
