Which of the following statements best explains the fact that there was no discernable difference between the groups on day 1?
a. beta carotene had been absorbed by the body in sufficient quantities, but vitamin a was not detected in the body.
b. beta carotene was excreted from the body before it could produce vitamin a.
c. beta carotene had not yet been absorbed by the body in sufficient quantities to influence the amount of vitamin a being produced.
d. beta carotene was consumed by the body in a quantity that was insufficient to produce vitamin a.

The answer is option C

Explanation:

Option c- Beta carotene had not yet been absorbed by the body in sufficient quantities to influence the amount of vitamin A being produced. Beta carotene is an organic, red-colored pigment that is found to be abundant in plants and fruits. it is a member of the Carotenes. Beta carotene is an inactive form (precursor) to vitamin A.

anthropod traits:

a well-developed collarbone

rotating shoulder joints

partially rotating elbow joints

opposable thumb

similar dental formula

the correct answer was location c, because earth is tilted away from the sun at this time