Q: Which system of the body is responsible for bringing air into the body? Choices: - vascular system - excretory system - digestive system - respiratory system A:
respiratory system

(Question)
Q: All cells undergo what during a lifetime, but when this process is out of control, cancer results? Choices: - cell transition - cell death - cell mutation - cell division A:
(Answer)
cell division

Ques: Q: Grasses such as wheat, rice, and corn are examples of fibrous root systems. fibrous root systems are found in monocots; tap root systems are found in these? Choices: - mosses - monocots - gymnosperms - dicots A:
Ans: dicots

(Q).
Q: What causes cancer cells to avoid elimination and continue to multiply? Choices: - continuous cell division - chronic cell division - persistent cell division - uncontrolled cell division A:
(A).
uncontrolled cell division

Ques:Q: A system is said to be in stable equilibrium if, when displaced from equilibrium, it experiences a net force or torque in a direction opposite to the direction of the what? Choices: - velocity - variation - dispersement - displacement A:

Ans:displacement

Ques:Q: What is an interesting example of a molecule with two central atoms, which are both c atoms? Choices: - chloride - water - sulfur - acetylene A:

Ans:
acetylene