Q: Each enzyme has an optimal what at which its reaction rate is greatest? Choices: - weight - size - precipitation - temperature A:
temperature

(Question)
Q: The molecular formula is still c 4 h 10 , which is the same formula as? Choices: - chlorine - carbon hydroxide - propane - butane A:
(Answer)
butane

Ques: Q: What is oceanography the study of? Choices: - bodies of water - seas - waters - oceans A:
Ans: oceans

(Q).
Q: What is reduced and forms part of the gelatinous disks sandwiched between the vertebrae in humans? Choices: - the clavicle - the sacrum - the pelvis - the notochord A:
(A).
the notochord

Ques:Q: What type of blood does the right side of the heart collect and then pump to the lungs? Choices: - nitrogen-rich blood - oxygen-rich blood - nitrogen-poor blood - oxygen-poor blood A:

Ans:oxygen-poor blood

Q: Radiation can be absorbed or shielded by materials, particularly what material used to make protective aprons worn by x-ray administrators? Choices: - cotton - steel - carbon - lead A:
lead