Homeostasis refers to the necessity of an organism to maintain constant or stable internal conditions. what structure cells maintain homeostasis by regulating the movement of materials into and out of a cell?
a. chloroplast
b. nuclear membrane
c. mitochondrion
d. cell membrane

Which element provides strength to the exoskeleton of clams and oysters

“in 1492 columbus sailed the ocean blue” is an example of: a)explicit memory b) procedural memory c) semantic memory d)episodic memory

Residential construction is expanding in florida, the expansion has caused fragmentation of habitats, one of the results of the increased construction is a decrease in the number of large predators such as the coyote, black bear and pool panther, which will be the most immediate local result of this fragmentation? 1)large predators will become extinct 2)decrease in middle sized predators 3)increase in population of top carnivores 4)increase in population of prey species