One reason animal cells need a central vacuole is because that often have similar vacuoles for storage. what is another reason animal cells don't need central vacuoles

List two limitations of natural selection

Which of the following is a common danger of commercial fishing?

Some birds look for food near cattle and other livestock. the movement of the cattle churns up the ground, making insects available to the birds. the cattle appear to be unaffected by the presence of the birds. what kind of relationship exists between the birds and the cattle? o a. parasitism o b. commensalism o c. predation o d. mutualism