The first one, it controls the physical traits of an organism. Good luck, hope this helps!
Answer:
B, Isotonic solution
Explanation:
In an isotonic solution, the flow of water in and out of the cell is happening at the same rate.
It is called blind. a condition in which the participant is not aware if he/she is in the experimental or control group
Answer:
A chemical element is a type of atom with the same number of protons in their <u>atomic</u> nuclei.
Explanation:
For an example, the atomic number of Chlorine is 17, and there is 17 protons in Chlorine.
If you have any questions feel free to ask in the comments.
