The right answer is 4).
The cytoskeleton is made up of biological polymers of proteins, sometimes called fibers because of their large size at the cellular level. They are classified into three categories:
Microfilaments: involves in cytoplasmic phenomena (division, endocytosis, migration).
Intermediate filaments: Maintenance of the nucleus structure.
Microtubules: Involved in the separation of chromosomes during mitosis.
Answer:
The water moves in the direction of the currents in the water. Or you can say they move from the dilute side to the concentrated side.
Explanation:
It is difficult to control all variables except the one being tested. Hope this helps.
Answer:
3. it protects the cell in a hypertonic environment
Explanation:
I'm no good with science sorry