Answer the following question given this paragraph: The mouth also begins the process of mechanical digestion . Sharp teeth in the front of the mouth cut or tear food when you bite into it (see Figure below ). Broad teeth in the back of the mouth grind food when you chew. Food is easier to chew because it is moistened by saliva from the salivary glands. The tongue helps mix the food with saliva and also helps you swallow. After you swallow, the chewed food passes into the pharynx. Q: Where does mechanical digestion begin? Choices: - intestines - brain - stomach - mouth A:
mouth
Answer the following question given this paragraph: Fossils are the preserved remains of animals, plants, and other organisms from the distant past. Examples of fossils include bones, teeth, and impressions. By studying fossils, evidence for evolution is revealed. Paleontologists are scientists who study fossils to learn about life in the past. Fossils allow these scientists to determine the features of extinct species. Paleontologists compare the features of species from different periods in history. With this information, they try to understand how species have evolved over millions of years ( Figure below ). Q: What are the preserved remains of animals, plants, and other organisms called? Choices: - skulls - rocks - basalt - fossils A:
fossils
Q: Answer the following question given this paragraph: water that flows over the land from precipitation or melting snow or ice. Q: What substance flows over the land from precipitation or melting snow or ice? Choices: - nitrogen - lava - air - water A:
A: water
Question: Answer the following question given this paragraph: Hotspots can be used to tell the speed and direction that a plate is moving. Q: Hotspots can be used to tell the speed and direction that what object is moving? Choices: - electrons - crystals - glaciers - plates A:
Answer: plates
*Question*
Answer the following question given this paragraph: This super fast train can obviously reach great speeds. And there's a lot of technology that helps this train go fast. Speaking of helping things go fast brings us to enzymes. Life could not exist without enzymes. Essentially, enzymes are biological catalysts that speed up biochemical reactions. Q: What are biological catalysts that speeds up biochemical reactions? Choices: - carbohydrates - hormones - proteins - enzymes A:
**Answer**
enzymes
Answer the following question given this paragraph: Lifecycle of Leukocytes Most leukocytes have a relatively short lifespan, typically measured in hours or days. Production of all leukocytes begins in the bone marrow under the influence of CSFs and interleukins. Secondary production and maturation of lymphocytes occurs in specific regions of lymphatic tissue known as germinal centers. Lymphocytes are fully capable of mitosis and may produce clones of cells with identical properties. This capacity enables an individual to maintain immunity throughout life to many threats that have been encountered in the past. Q: Characterized by a short lifespan, what begin with production in the bone marrow under the influence of csfs and interleukins? Choices: - solutes - pathogens - erythrocytes - leukocytes A:
leukocytes