How would the experiment need to be modified in order to determine whether the amount of vitamin A absorbed by the body is dependent on the amount of beta carotene consumed?

The experiment should have more different subject groups, with each group consuming a different amount of beta carotene.

Explanation:

When designing an experiment, to determine the effect of the amount of a substance, the experimental design should be done to accommodate more than two experimental group with each group treated with different amount of the substance and also a control group. This will enable the researcher to determine the effect of the different ranges of amount.

In the example, in other to determine if vitamin A is dependent of the amount of beta carotene consumed, there should be more different subject groups, with each group consuming a different amount of beta carotene.

There should be more groups of subjects, each consuming a different quantity of beta carotene.

Explanation:

For them to determine whether the amount Vitamin A absorbed by the body is dependent on the amount of beta carotene consumed, what they need to do is to create more groups each consuming a different amount beta carotene by so doing, they have been able to modify the experiment to determine whether the amount of vitamin A absorbed by the body is dependent on the amount of beta carotene consumed.

the law of original horizontality explains:   why rocks appear in layers. correct answer: b the law suggests that all rock layers are originally laid down (deposited) horizontally and can later be deformed.   the principle is used by geologists to make assumptions about the relative ages of sedimentary rocks.