Answer:
the movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy.
Answer: 3.friction
Explanation: friction is a force of resistance acting between objects in contact and tending to dampen their motion
Answer:
that would be C, seafloor spreading occurs!
Explanation:
<span>First, he should inform all the people who might be in the building to quit immediately.
Since the content which was in the pipette is not known they vacate and let the investigation to be carried out.
If the content is known, then the procedure on how to lean up the mess is carried out. After that people can go back to their normal duties.</span>
Answer: The length of the cell in millimetres is 0.0015.
Explanation:
Given conversion :
Thus 
Given : Length of the cell = 1.5 micrometers 
To find: Length of the cell in milllimeters (mm)
Length of the cell in milllimeters (mm) = 
The length of the cell in millimetres is 0.0015.
