Answer: Please don't get mad at me if this is wrong, just trying to help ;)
Explanation: I believe it's C.
As people go older, they would lose some of their ability to sythesize vitamin d. Also, elderly who are home bound are less likely to go outside to exercise so they do not expose the sunlight often, causing them to have lesser vitamin d
Parents reproduce and have a baby. There's 46 chrosomes that fuse. All offspring are genetically diverse. <span />
The answer to this question is orbit. Because the path follows earth around the sun.
Answer: a. The amount of artificial daylight the colonies are exposed to
d. The amount of food available for foraging
Explanation:
The independent variable is the variable that can be changed and manipulated in an experiment. This is likely to bring variations in the experimental variable of the experiment.
In the given situation, the two variables artificial daylight and available food can be controlled to eliminate the variations in the experimental outcome. For example, the intensity of the light may affect the colonization of ants and the amount of food also may either increase or decrease the population of ants.