What would be the effect on a pregnancy if the placenta failed to begin function during the third month of gestation?
a. the corpus luteum would continue hormone production as an alternative source until birth.
b. there would be no effect on the pregnancy.
c. the fetus would be born prematurely.
d. the pregnancy could not continue.
e. none of the above would be the case?

explanation:

the fossil record extends back to a dog-like ancestor some 55 million years ago, which gave rise to the first horse-like species 55 to 42 million years ago in the genus eohippus.

what is shown in the image?

eukaryote

chloroplast

mitochondrion

submitted

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.