When the starfish were removed from the area as part of an experiment, the mussel population swelled and crowded out other species. The biodiversity of the ecosystem was drastically reduced. Payne's study showed that identifying and protecting keystone species can help preserve the population of many other species.
The answer to this question would be simple squamous epithelium.
When you need to supply oxygen or nutrient, the thinner cell layer the faster it can move. In this case, simple squamous epithelium is better since it provides protection but can let the nutrient transported quickly.
Answer: All of the Above
Explanation:
TOPEX/ Poseidon was a joint effort between the USA's NASA and France's CNES from 1992 to 2006 that used satellite technology to study the changes in the ocean's topography and height.
It was hailed for its wide success as it was able to find data to explain various phenomenon that scientists had been trying to explain for a while including how to predict the path of La Nina.
I believe it's B. Cytoskeleton and Cytoplasm.