Does sound (longitudinal wave) travel very slowly in a vacuum? why?

Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.

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.

Match each symbol with its description.