Barnacles and mussels are filter feeders that attach themselves to rocks in the intertidal zone. a scientist observed a dense colony of barnacles covering a rock surface. the mussels were limited to the crevices in the same rock. evaluate the observation given the limiting factors in the zone.

What is called the "building block" of life?

Which of the following is an oxidation-reduction reaction? (pictured below)

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.