Ques: Q: How many quarks are in each proton and neutron? Choices: - ten - five - four - three A:
Ans: three

Ques: Q: How does sap get to the tops of tall trees? Choices: - through suction power - via Coriolis forces - through pressure from below - through negative pressure A:
Ans: through negative pressure

Ques: Q: Compared to others, what type of liquid has a relatively high surface tension and heat capacity? Choices: - oil - wine - blood - water A:
Ans: water

Ques: Q: What begins approximately six weeks after fertilization in an embryo? Choices: - calcification - elongation - incubation - ossification A:
Ans:
ossification