This body system sends impulses to all parts of the body; controls breathing and heart rate for example.

A. Endocrine

B. Nervous

C. Excretory

D. Immune

What two fields of study provide the core information that is used to classify organisms?

Which zone within the open-ocean zone is home to the most organisms? deep zone surface zone intertidal zone transition zone

Kudzu vines grow by climbing and wrapping around trees. trees covered by kudzu can die because they are starved of sunlight. what type of relationship exists between the trees and the kudzu growing on them?