Answer the following question given this paragraph: Mollusks have a circulatory system with one or two hearts that pump blood. The heart is a muscular organ that pumps blood through the circulatory system when its muscles contract. The circulatory system may be open or closed, depending on the species. Q: The heart is a muscular organ that pumps blood through which system? Choices: - endocrine - pulmonary - nervous - circulatory A:
circulatory
(Question)
Answer the following question given this paragraph: Bonds break and reform during chemical reactions. Reactants and products contain the same atoms, but they are rearranged during the reaction, so reactants and products are different substances. Q: In a chemical reaction, what, in general, comes together in order to form a product? Choices: - gases - liquids - propellants - reactants A:
(Answer)
reactants
Ques: Answer the following question given this paragraph: thrombosis, can be caused by excessive numbers of platelets. A thrombus is a collection of fibrin, platelets, and erythrocytes that has accumulated along the lining of a blood vessel, whereas an embolus is a thrombus that has broken free from the vessel wall and is circulating in the bloodstream. Q: What is a collection of fibrin, platelets, and erythrocytes that has accumulated along the lining of a blood vessel called? Choices: - atherosclerosis - embolus - clots - thrombus A:
Ans: thrombus
(Q).
Answer the following question given this paragraph: Archaea that live in salty environments are known as halophiles. Q: What type of archaea live in salty environments? Choices: - arthropods - sporozoans - amphibians - halophiles A:
(A).
halophiles
Ques:Answer the following question given this paragraph: Sometime in your life you've asked a question about the world around you. Probably you've asked a lot of questions over the years. The best way to answer questions about the natural world is by using science. Scientists ask questions every day, and then use a set of steps to answer those questions. The steps are known as the scientific method. By following the scientific method, scientists come up with the best information about the natural world. As a scientist, you need to do experiments to find out about the world. You also need to wonder, observe, talk, and think. Everything we learn helps us to ask new and better questions. Q: What is the set of steps that scientists use to learn about the world? Choices: - philosophic method - rhythm method - Socratic method - scientific method A:

Ans:scientific method
Question: Answer the following question given this paragraph: Most protists consist of a single cell. Some are multicellular but they lack specialized cells. Q: Trash that gets into fresh and saltwater waterways is called what type of debris? Choices: - pollution - ocean - water - aquatic A:
Answer:
aquatic