<span>Basal Body Temperature (BBT) is the body temperature upon waking up
or when a person is at rest. After ovulation, a woman’s BBT rises because of increase in
progesterone level. BBT swill stay high throughout the post-ovulation phase and
until the following cycle. If there is pregnancy, BBT will stay high.</span>
Look at some up some videos about like eureka math or khan Academy
Ribosome packages nutrients and sends itto different parts of the cell
4,000 species can be found around the world