HEL
PLEAS
What is a possible cause for a decrease in ecosystem productivity?
a. an increase in the biodiversity of the ecosystem
b. a decrease of the biodiversity of an ecosystem
c. the biodiversity of an ecosystem experiencing no change
d. an ecosystem becoming more stable

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.

The response is the basis for vaccination. primary secondary tertiary none of the above

Describe the function of the endomembrane system? what organelles are involved?