Caves are a type of island ecosystem according to the theory of island biogeography true or false

Aeukaryotic cell must be from a plant if the cell a) a nucleus b) a nuclear envelope c) cytoplasm d) a cell wall

Which statement about the pancreas is not true? a. it is an endocrine organ in the abdomen. b. it release chemicals into the digestive system. c. it releases insulin to increase glucose levels. d. it release hormones into the bloodstream.

Long-period comets come from the oort cloud particles in earth’s atmosphere material from the asteroid belt the kuiper belt