In women, some untreated stds can block the fallopian tubes. how would this affect fertilization?

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?

When water freezes, it . contracts expands

Research cheetahs on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? -cheetah how long has the animal been endangered or threatened? what has contributed to this animal’s endangered or threatened status? why is it important to save this animal from extinction? after researching and gathering facts, write a 350-word letter from the point of view of an animal rights' activist. be sure to include at least five facts that you learned from your research.