<span>A hormone doesn't determine the gender. Chromosomes do. But the female hormones are estrogen and progesterone and the male is testosterone.</span>
I think the correct answer from the choices listed above is option A.
The first type of cell to differentiate is a neuron. The neurons are
cells that process and transmits information through electrical and
chemical signals. Hope this answers the question.
Depends on the type of energy. If it is biological energy the answer would be yes since it comes from the sun
B)weathering is the main way phosphorous is recycled
The average newborn sleep 16-18 hours in a 24 hour period.