Viruses can be classified a. type of genetic core b. type of host it can infect c. outer shape d. all of the above e. none of the above

What is thought to have caused the mass extinction at the end of the cretaceous period?

Will someone me with this.. specialized cells which perform a particular function form: tissues organs or organism

Research cheetahs on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? -cheetah 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.