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: Teeth in the back of the mouth are used for what? Choices: - swallowing food - tearing food - cutting food - grinding food A:
grinding food
(Question)
Answer the following question given this paragraph: Q: Snow and rain are forms of what weather? Choices: - sediment - evaporation - cold fronts - precipitation A:
(Answer)
precipitation
Ques: Answer the following question given this paragraph: DNA and RNA are nucleic acids. DNA stores genetic information. RNA helps build proteins. Proteins, in turn, determine the structure and function of all your cells. Proteins consist of chains of amino acids. A protein's structure and function depends on the sequence of its amino acids. Instructions for this sequence are encoded in DNA. Q: Both dna and rna are what type of acids? Choices: - proteins acids - synthesize acids - fatty acids - nucleic acids A:
Ans: nucleic acids
(Q).
Answer the following question given this paragraph: Sedimentary rocks are formed in horizontal layers. This is magnificently displayed around the southwestern United States. The arid climate allows rock layers to be well exposed ( Figure below ). The lowest layers are the oldest and the higher layers are younger. Q: Sedimentary rocks form in what kind of layers? Choices: - stacked - magnetic - vertical - horizontal A:
(A).
horizontal
Ques:Answer the following question given this paragraph: The parts of the ears involved in balance are the semicircular canals . Above, the semicircular canals are colored purple ( Figure above ). The canals contain liquid and are like the bottle of water pictured below ( Figure below ). When the bottle tips, the water surface moves up and down the sides of the bottle. When the body tips, the liquid in the semicircular canals moves up and down the sides of the canals. Tiny hair cells line the semicircular canals. Movement of the liquid inside the canals causes the hair cells to send nerve impulses. The nerve impulses travel to the cerebellum in the brain along the vestibular nerve. In response, the cerebellum sends commands to muscles to contract or relax so that the body stays balanced. Q: The parts of the ears involved in balance are called what? Choices: - lobe canal - symmetrical canals - rectangular canals - semicircular canals A:

Ans:semicircular canals
Answer the following question given this paragraph: Connective tissue Bone remodeling and repair: bone has mineral structure, and develops tiny fractures, which, under stress, can lead to larger fractures. To combat this, bone is constantly replaced. Osteoclasts channel through existing bone, tear down and leave behind osteoblasts and lacuna, leaving osteocytes. Continually resets mineral structure of bone, and is preventative maintenance. When bone broken, callus forms in open ends, periosteum gives rise to new bone with calcium and new bone matrix, leaves irregular mend. Later, osteoblasts continue fixing over time and slowly removing imperfection. Q: Osteoclasts and osteoblasts play key roles in repair of what? Choices: - heart - liver - brain - bone A:
bone