Answer:
<h2>The answer is option D- Selective breeding.</h2>
It will be Control. Part of the experiment used to show that the results of an experiment is really due to the conditions being tested.
<span>nerve cells need b 12 for proper functioning</span>
Answer: Cell membrane
Explanation:
The cell membrane has the ability to transfer the molecules from the exterior of the cell to the interior of the cell.
The cell membrane is semi permeable which means only selected molecules will pass through the cell membrane.
The molecules and substances that are synthesized inside the cell needs to be transported from inside to outside via cell membrane.
Plants that use photosynthesis would