Q: What organizational tool, arguably the best in all of science, lists all the known chemical elements, arranged by atomic number? Choices: - tide table - logic table - spreadsheet - periodic table A:
periodic table

Q: Energy transfer between what kinds of levels is generally rather inefficient? Choices: - producer - secondary - apex - trophic A:
trophic

Q: Q: What does the second number in a blood pressure reading measure? Choices: - external pressure - optimal pressure - epithelial pressure - diastolic pressure A:
A: diastolic pressure

Question: Q: Which organ breaks down amino acids and toxins that are in the blood? Choices: - skin - kidney - small intestine - liver A:
Answer: liver

*Question*
Q: When an atom gains or loses an electron it becames an? Choices: - electron - photon - neutron - ion A:
**Answer**
ion

(Q).
Q: Because sound waves must move through a medium, there are no sound waves in a what? Choices: - solid - liquid - gas - vacuum A:
(A).
vacuum