Answer the following question given this paragraph: Protection. The skeleton supports and protects the soft organs of the body. For example, the skull surrounds the brain to protect it from injury. The bones of the rib cage help protect the heart and lungs. Q: What supports and protects the soft organs of the body? Choices: - Skin - skull - Muscle - skeleton A:
skeleton
Answer the following question given this paragraph: Density is an important physical property of matter. It reflects how closely packed the particles of matter are. Density is calculated from the amount of mass in a given volume of matter, using the formula:. Q: What physical property of matter reflects how closely packed the particles are? Choices: - volume - strength - diameter - density A:
density
Q: Answer the following question given this paragraph: Chemists need to be concerned with the rates at which chemical reactions occur. Rate is another word for speed. If a sprinter takes 11.0 s to run a 100 m dash, his rate or speed is given by the distance traveled divided by the time. Q: Distance traveled divided by time yields what measurement, which is another word used to describe the speed of a chemical reaction? Choices: - flow - displacement - acceleration - rate A:
A: rate
Question: Answer the following question given this paragraph: When an insect egg hatches, a larva emerges. The larva eats and grows and then enters the pupa stage. The pupa is immobile and may be encased in a cocoon . During the pupa stage, the insect goes through metamorphosis . Tissues and appendages of the larva break down and reorganize into the adult form. How did such an incredible transformation evolve? Metamorphosis is actually very advantageous. It allows functions to be divided between life stages. Each stage can evolve adaptations to suit it for its specific functions without affecting the adaptations of the other stage. Q: What emerges from an insect egg? Choices: - cocoon - fungi - parasite - larva A:
Answer: larva
*Question*
Answer the following question given this paragraph: Despite its dangers, radioactivity has several uses. For example, it can be used to determine the ages of ancient rocks and fossils. It can also be used as a source of power to generate electricity. Radioactivity can even be used to diagnose and treat diseases, including cancer. Cancer cells grow rapidly and take up a lot of glucose for energy. Glucose containing radioactive elements can be given to patients. Cancer cells take up more of the glucose than normal cells do and give off radiation. The radiation can be detected with special machines like the one in the Figure below . The radiation may also kill cancer cells. You can learn more about medical uses of radiation at this URL: http://www. youtube. com/watch?v=v_8xM-mLxJ8. Q: Cancer cells take up glucose for what reason? Choices: - heating - reproduction - food - energy A:
**Answer**
energy
*Question*
Answer the following question given this paragraph: 16.5 | Musculoskeletal System By the end of this section, you will be able to: Discuss the axial and appendicular parts of the skeletal system Explain the role of joints in skeletal movement Explain the role of muscles in locomotion The muscular and skeletal systems provide support to the body and allow for movement. The bones of the skeleton protect the body's internal organs and support the weight of the body. The muscles of the muscular system contract and pull on the bones, allowing for movements as diverse as standing, walking, running, and grasping items. Injury or disease affecting the musculoskeletal system can be very debilitating. The most common musculoskeletal diseases worldwide are caused by malnutrition, which can negatively affect development and maintenance of bones and muscles. Other diseases affect the joints, such as arthritis, which can make movement difficult and, in advanced cases, completely impair mobility. Progress in the science of prosthesis design has resulted in the development of artificial joints, with joint replacement surgery in the hips and knees being the most common. Replacement joints for shoulders, elbows, and fingers are also available. Q: Which two systems together provide support to the body and allow for movement? Choices: - muscular and nervous - skeletal and digestive - vascular and muscular - skeletal and muscular A:
**Answer**
skeletal and muscular