How does the circulatory system and the respiratory system work together 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.

The diagram shows the layers of earth. convection currents in which region influence the movement of tectonic plates

What organ is the first to receive nutrients that have been absorbed from the digestive tract?