Which word defines the group of all penguins living together in one area? A) habitat
B) population
C) species
D) community

Which best describes the digestive system of arthropods? a incomplete, two openings b complete, one opening c two-way, one opening d one-way, two openings

The finches on the galapagos island were similar in form except for variations of their beaks. darwin observed that these variations were useful for: attracting a mate defending territory building nests gathering food

Wich level of organization includes all the other levels or organizations