Q: What is a sheet of muscle that spreads across the bottom of the rib cage? Read this paragraph and choose the correct option from the provided answers: The diaphragm is a sheet of muscle that spreads across the bottom of the rib cage. When the diaphragm contracts, the chest volume gets larger, and the lungs take in air. When the diaphragm relaxes, the chest volume gets smaller, and air is pushed out of the lungs. Choices: - cartilage - thorax - diagram - diaphragm A:
diaphragm

Q: How does the liquid in a thermometer respond to heat or cold? Read this paragraph and choose the correct option from the provided answers: Many thermometers measure temperature with a liquid that expands when it gets warmer and contracts when it gets cooler. Look at the common household thermometer pictured in the Figure below . The red liquid rises or falls in the glass tube as the temperature changes. Temperature is read off the scale at the height of the liquid in the tube. To learn more about measuring temperature, watch the animation "Measuring Temperature" at this URL: http://www. sciencehelpdesk. com/unit/science2/3. 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? Read this paragraph and choose the correct option from the provided answers: Yes, in some ways. Ocean waves travel at the interface between the sea surface and the atmosphere. They have all the features that all waves have. Some seismic waves also travel at an interface. Which ones?. 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? Read this paragraph and choose the correct option from the provided answers: The autonomic nervous system serves as the relay between the CNS and the internal organs. It controls the lungs, the heart, smooth muscle, and exocrine and endocrine glands. The autonomic nervous system controls these organs largely without conscious control; it can continuously monitor the conditions of these different systems and implement changes as needed. Signaling to the target tissue usually involves two synapses: a preganglionic neuron (originating in the CNS) synapses to a neuron in a ganglion that, in turn, synapses on the target organ (Figure 16.24). There are two divisions of the autonomic nervous system that often have opposing effects: the sympathetic nervous system and the parasympathetic nervous system. The sympathetic nervous system is responsible for the immediate responses an animal makes when it encounters a dangerous situation. One way to remember this is to think of the "fight-or-flight" response a person feels when encountering a snake ("snake" and "sympathetic" both begin with "s"). Examples of functions controlled by the sympathetic nervous system include an accelerated heart rate and inhibited digestion. These functions help prepare an organism's body for the physical strain required to escape a potentially dangerous situation or to fend off a predator. 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? Read this paragraph and choose the correct option from the provided answers: DNA. By contrast though, bacterial DNA is contained in a large, circular strand. This single chromosome is located in a region of the cell called the nucleoid . The nucleoid is not an organelle, but a region within the cytoplasm. Many bacteria also have additional small rings of DNA known as plasmids . Choices: - polypeptide - amino acid - nucleic acid - the nucleoid A:
**Answer**
the nucleoid

(Q).
Q: What length of time is human gestation commonly divided into? Read this paragraph and choose the correct option from the provided answers: Choices: - two halves - fifty weeks - four quarters - three trimesters A:
(A).
three trimesters