The correct answer is contractile vacuole.
The contractile vacuole is a water bubble present in the endoplasm of the amoeba. The role of the contractile vacuole is same as the role of the central vacuole in plants.
The contractile vacuole stores the water and the waste material of the cell, along with some mineral and other substance, so, they help in the maintenance of the osmolarity. In case, the walls of the contractile vacuole is damaged, the cell may burst out.
Hello, Umarhaley.
For question 12 the answer is :
B, since the fluid moves from an area of high concentration to lower concentration to calibrate it!
For question 13 the answer is :
B, because diffusion is movement from high concentration to lower concentration while osmosis is movement of water in high to low concentration!
For question 14 the answer is :
B, because that's where eurokaryotic does the process of DNA synthesis on the nucleus!
For question 15 the answer is :
C, mitosis as it is cell division that help the plant grow longer to reach the water by its 2 daughter cells.
-procklown
Haploid cells join to form an organism that has a complete set of chromosomes
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