The effect on the biosphere of providing all the resources a human population needs and absorbing all of the waste it generates is called a(n)
a) Renewable resource
b) Non-renewable resource
c) Ecological footprint

List two modern organisms that have pentameral symmetry

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 substance acts to prevent sudden ph changes in bodily fluids?