How does oxygen enter a cell? A. Active transport
B. Facilitated diffusion
C. Simple diffusion
D. Osmosis

Advances in technology have enabled scientists and researchers to better study the evolutionary relationships between species

How does friction with the atmosphere affect the speed of an artificial satellite

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.