Answer the following question given this paragraph: The type of radiation, which dictates how far it can penetrate into matter 2. The energy of the individual particles or photons 3. The number of particles or photons that strike a given area per unit time 4. The chemical nature of the substance exposed to the radiation The relative abilities of the various forms of ionizing radiation to penetrate biological tissues are illustrated inFigure 20.12 "Depth of Penetration of Ionizing Radiation". Because of its high charge and mass, radiation interacts strongly with matter. Consequently, it does not penetrate deeply into an object, and it can be stopped by a piece of paper, clothing, or skin. In contrast, rays, with no charge and essentially no mass, do not interact strongly with matter and penetrate deeply into most objects, including the human body. Several inches of lead or more than 12 inches of special concrete are needed to completely stop rays. Because particles are intermediate in mass and charge between particles and . Q: The type of what dictates how far it can penetrate into matter, such as lead or human flesh? Choices: - insulation - evaporation - specific gravity - radiation A:
radiation
Answer the following question given this paragraph: Longshore drift can erode the sediment from a beach. To keep this from happening, people may build a series of groins. A groin is wall of rocks or concrete that juts out into the ocean perpendicular to the shore. It stops waves from moving right along the beach. This stops the sand on the upcurrent side and reduces beach erosion. You can see how groins work in Figure below . Q: A wall of rocks or concrete that juts out into the ocean perpendicular to the shore is called? Choices: - shield - rib - fault - groin A:
groin
Q: Answer the following question given this paragraph: Skeletal muscle is attached to the bones of the skeleton. It is striated like cardiac muscle because its muscle fibers are arranged in bundles. Contractions of skeletal muscle are voluntary. This means that they are under conscious control. Whether you are doing pushups or pushing a pencil, you are using skeletal muscles. Skeletal muscles are the most common type of muscles in the body. You can read more about them below. Q: Which type of muscle is most common in the human body? Choices: - digestive - smooth - hormonal - skeletal A:
A: skeletal
Question: Answer the following question given this paragraph: Q: The second shell holds a maximum of how many electrons? Choices: - 9 - 12 - 6 - 8 A:
Answer: 8
*Question*
Answer the following question given this paragraph: Chromoplasts are plastids that make and store other pigments. The red pigment that colors the flower petals in Figure above was made by chromoplasts. Q: What plastid makes and stores other pigments? Choices: - pores - pores - sporozoans - chromoplasts A:
**Answer**
chromoplasts
(Q).
Answer the following question given this paragraph: Watch this animation (http://openstaxcollege. org/l/sintestine) that depicts the structure of the small intestine, and, in particular, the villi. Epithelial cells continue the digestion and absorption of nutrients and transport these nutrients to the lymphatic and circulatory systems. In the small intestine, the products of food digestion are absorbed by different structures in the villi. Which structure absorbs and transports fats?. Q: Which cells continue the digestion and absorption of nutrients and transport these nutrients to the lymphatic and circulatory systems? Choices: - myocyte - blood cells - neurons - epithelial cells A:
(A).
epithelial cells