What is common to the carbon cycle, the nitrogen cycle and the water cycle?

Why is excretion necessary to maintain homeostasis?

Choose one animal (cheetas) and research on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? 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.

If jane has the blood type ab and marries john who has type o blood what are the possible phenotypes of their first kid?