A: provided structural support to the cell
Due to the ionic bonding of the molecules that allow for the geometric/crystalline structure.
The process is called facilitated transport when molecules must join with another molecule, such as proteins, to get through a membrane.
Answer:
The degree of cortisol release during high intensity exercise depends in part on the time of day and the timing of meals. When exercise is performed during a time of already high cortisol levels (for example, in the morning), it doesn’t increase above already elevated levels.
Explanation:
Independent variable: is the UV light exposure
Control group: people not exposed (sample b)
Dependent variable: skin cancer
Experimental group: (sample A)