(Q).
Q: What structures of the cardiovascular system help regulate body processes by either constricting or dilating? Choices: - muscles - cartilage - capillaries - blood vessels A:
(A).
blood vessels

(Q).
Q: What bonds form because they give atoms a more stable arrangement of electrons? Choices: - Hydrogen bond - Ionic bond - Polar bond - covalent A:
(A).
covalent

(Q).
Q: What system transports minerals and water in a plant? Choices: - leaves - stamen - flowers - roots A:
(A).
roots