Conclude mode of respiration of earthworms​

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.

What causes darkening of the skin as melanin production increases

When listening the levels of orginization in orginisims from the smallest to most complex , which level is just below organs in complexity