Q: Planets are held by the force of gravity in elliptical orbits around what? Choices: - earth - mars - jupitor - sun A:
sun

(Question)
Q: What does urine leave the body through? Choices: - vagina - colon - uterus - urethra A:
(Answer)
urethra

Ques: Q: The amount of what entering the eyes helps control the biological clock? Choices: - air - energy - heat - light A:
Ans: light

(Q).
Q: When carbon atoms are not bonded to as many hydrogen atoms as possible, what kind of hydrocarbon results? Choices: - unstable - aqueous - saturated - unsaturated A:
(A).
unsaturated

Ques:Q: The dual character is critical for the formation of the what? Choices: - muscle bilayer - carbon bilayer - tissues bilayer - lipid bilayer A:

Ans:lipid bilayer

Q: What glands in the breast secrete milk? Choices: - primordial glands - adrenal glands - fetal glands - mammary glands A:
mammary glands