Which one of these statements is true about reproduction in humans? a. one sperm will fertilize one egg
b. all the eggs produced are fertilized
c. males and females are born with a supply of reproductive cells
d. females will produce a mature egg through out their lives ​

A

Explanation:

The egg and sperm each contain one set of chromosomes. To ensure that no more than one sperm fertilizes the egg, once the acrosomal reactions take place at one location of the egg membrane, the egg releases proteins in other locations to prevent other sperm from fusing with the egg.

measuring light intensity

light meters can be used to measure light intensity. the meter is held at the soil surface and pointed in the direction of the maximum light intensity, and then the meter is read.

errors can be made when measuring light intensity by accidentally shading the light meter. the reliability of the results can be checked by taking many samples.

sorry, is there a picture? i do not see any arrows.

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