Answer the following question given this paragraph: Most air masses form over polar or tropical regions. They may form over continents or oceans. Air masses are moist if they form over oceans. They are dry if they form over continents. Air masses that form over oceans are called maritime air masses. Those that form over continents are called continental air masses. Figure below shows air masses that form over or near North America. Q: Most air masses form over what two types of regions? Choices: - arctic and marine - polar and arctic - marine and tropical - polar and tropical A:
polar and tropical
(Question)
Answer the following question given this paragraph: Earthworms are important deposit feeders that help form and enrich soil. Q: Earthworms are important deposit feeders that help form and enrich what material? Choices: - wood - shale - coal - soil A:
(Answer)
soil
Ques: Answer the following question given this paragraph: The general term peptide refers to an amino acid chain of unspecified length. However, chains of about 50 amino acids or more are usually called proteins or polypeptides. In its physiologically active form, a protein may be composed of one or more polypeptide chains. For peptides and proteins to be physiologically active, it is not enough that they incorporate certain amounts of specific amino acids. The order, or sequence, in which the amino acids are connected is also of critical importance. Bradykinin is a nine-amino acid peptide produced in the blood that has the following amino acid sequence: arg-pro-pro-gly-phe-ser-pro-phe-arg This peptide lowers blood pressure, stimulates smooth muscle tissue, increases capillary permeability, and causes pain. When the order of amino acids in bradykinin is reversed, arg-phe-pro-ser-phe-gly-pro-pro-arg the peptide resulting from this synthesis shows none of the activity of bradykinin. Saylor URL: http://www. saylor. org/books. Q: The general term peptide refers to an amino acid chain of what? Choices: - large length - incomplete length - small length - unspecified length A:
Ans: unspecified length
(Q).
Answer the following question given this paragraph: The digestive system consists of organs that break down food, absorb nutrients, and eliminate waste. Q: What body system consists of organs that break down food, absorb nutrients, and eliminate waste? Choices: - lymphatic system - hormonal system - skeletal system - digestive system A:
(A).
digestive system
Ques:Answer the following question given this paragraph: Most animals are capable of learning, but animals that are more intelligent are better at learning and depend more on learned behaviors. The big advantage of learned behaviors over innate behaviors is that learned behaviors are flexible. They can be changed to suit changing conditions. Q: What type of behavior has the advantage of being flexible and capable of changing to suit changing conditions? Choices: - inherited behavior - noted behavior - saved behavior - learned behavior A:

Ans:learned behavior
Answer the following question given this paragraph: A snowflake is made of ice, or water in the solid state. A solid is one of four well-known states of matter. The other three states are liquid, gas, and plasma. Compared with these other states of matter, solids have particles that are much more tightly packed together. The particles are held rigidly in place by all the other particles around them so they can't slip past one another or move apart. This gives solids a fixed shape and a fixed volume. Q: What state of matter completes the list: solid, liquid, gas? Choices: - energy - ice - power - plasma A:
plasma