Which statement best contrasts the respiratory and circulatory systems?

a: the respiratory system moves oxygen, while the circulatory system moves blood.
b: the respiratory system includes the heart, while the circulatory system includes veins.
c: the respiratory system rids the body of waste, while the circulatory system pumps blood.
d: the respiratory system provides nutrients, while the circulatory system controls blood flow.

A. The respiratory system moves oxygen, while the circulatory system moves blood

Explanation:

The respiratory system includes all the organs necessary for gaseous exchange. They include lungs, trachea, etc. They help in the movement of oxygen into the body and the removal of CO2 out of the body.

The circulatory system AKA the transport system, include the heart , vessels as they pump nutrients and oxygen to all parts of the human body. Removal of CO2 from organs and is the job of the circulatory system including urea, etc .

answer; i believe the answer is hydraulic action;

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.