Q: What is a sheet of muscle that spreads across the bottom of the rib cage? Choices: - cartilage - thorax - diagram - diaphragm A:
diaphragm

Q: How does the liquid in a thermometer respond to heat or cold? Choices: - freezes or boils - disappears - rises or vaporizes - expands or contracts A:
expands or contracts

Q: Q: What travels at the interface between the sea surface and the atmosphere? Choices: - ocean currents - ocean tides - ocean breeze - ocean waves A:
A: ocean waves

Question: Q: The autonomic nervous system serves as the relay between what and the internal organs? Choices: - hormones - somatic system - peripheral nervous system - central nervous system A:
Answer: central nervous system

*Question*
Q: Bacterial dna is contained in a large, circular strand; this single chromosome is located in a region of the cell called what? Choices: - polypeptide - amino acid - nucleic acid - the nucleoid A:
**Answer**
the nucleoid

(Q).
Q: What length of time is human gestation commonly divided into? Choices: - two halves - fifty weeks - four quarters - three trimesters A:
(A).
three trimesters