Q: The pulmonary artery carries deoxygenated blood into the lungs from this? Choices: - legs - bladder - brain - heart A:
heart

Q: In iceland, the mid-atlantic ridge is above sea what? Choices: - atmosphere - bottom - tide - level A:
level

Q: Q: What type of species can alternate between medusa and polyp forms? Choices: - mollusks - crocodilian - chordata - cnidarian A:
A: cnidarian

Question: Q: What type of numerical figure is important in considering the precision and accuracy of a number? Choices: - component - insignificant - exponent - significant A:
Answer: significant

*Question*
Q: What term is used to describe the process of removing wastes and excess water from the body? Choices: - diffusion - digestion - aeration - excretion A:
**Answer**
excretion

(Q).
Q: What is to blame for water's boiling point (100c) being higher than the boiling points of similar substances? Choices: - electrode bonds - molecular shape - helium bonds - hydrogen bonds A:
(A).
hydrogen bonds