The answer would be C as it can be directly tested experimentally and observed that bacteria adapted to become drug resistant and the natural selection of drug resistant bacteria to survive and continue proliferating, thus being direct evidence of evolution
The<em> cell membrane</em> controls the movement of substances in and out of cells and organelles. In this way, it is selectively permeable to ions and organic molecules.
Answer: (1) It has a tail to travel to the egg (2) contains a nucleus in the head which will fertilise the egg
Explanation: Firstly it has a tail to help it travel to the egg. Secondly it contains the nucleus in the head that will fertilise the egg. Thirdly the acrosome contains enzymes in order for the sperm to penetrate the egg. Finally, the sperm cell is packed with mitochondria to provide the energy needed to reach the egg.
