Moderate activities are like going to the park and walking your dog or going to the mall. Vigorous activities such as sports, paintball and theme parks.
Answer C
Explanation : the third answer choice
A. Age
Age is the best answer because it is easily determined and since there are stages of development, age can tell staff other things such as coordination level, ability and risk of getting hurt.
I'll go through the other answers briefly.
B. Intelligence. Intelligence is a fair enough answer, save for the fact that it is something that is not easy to determine quickly and hence, it would be difficult to determine each child's intelligence before they came into the daycare. Furthermore, intelligence or lack thereof does not necessarily mean that the child does not need as much supervision.
C. Previous training. This is not the correct answer because it is the previous training "of the children cared for." The children do not need to have previous training. It could work as an answer if it were in relation to the workers, not the children.
D. Coordination. Somewhat of a good answer. However, once again, coordination is not an easy determinant, and cannot always reliably predict how many staff should be with how many children.
Answer:
Yes, the red blood cell swells
Explanation:
The red blood cells placed in a hypotonic solution will take in water across their membranes.
A red blood cell will swell and undergo hemolysis (burst) when placed in a hypotonic solution.
The red blood cell that is hypotonic (lower concentration outside the cell) will result in more water flowing into the cell than out. This results in swelling of the cell.
