Q: What element once commonly used in paint and gasoline has now been found to have dangerous effects? Read this paragraph and choose the correct option from the provided answers: lead: An element that was once commonly used in gasoline and paint, is now found to have dangerous effects, such as brain damage. Lead contamination has many harmful effects on the body. Choices: - plastic - chromium - niacin - lead A:
lead

Q: Fungi may have both asexual and sexual stages of what? Read this paragraph and choose the correct option from the provided answers: Figure 24.8 Fungi may have both asexual and sexual stages of reproduction. Choices: - absorption - development - photosynthesis - reproduction A:
reproduction

Q: The number of neutrons and electrons may vary or change in an atom. what happens to the number of protons? Read this paragraph and choose the correct option from the provided answers: The number of protons per atom is always the same for a given element. However, the number of neutrons may vary, and the number of electrons can change. Choices: - decreases - increases - depends - remains the same A:
remains the same

Q: What do we call the region on the lung root formed by the entrance of the nerves at the hilum? Read this paragraph and choose the correct option from the provided answers: Nervous Innervation Dilation and constriction of the airway are achieved through nervous control by the parasympathetic and sympathetic nervous systems. The parasympathetic system causes bronchoconstriction, whereas the sympathetic nervous system stimulates bronchodilation. Reflexes such as coughing, and the ability of the lungs to regulate oxygen and carbon dioxide levels, also result from this autonomic nervous system control. Sensory nerve fibers arise from the vagus nerve, and from the second to fifth thoracic ganglia. The pulmonary plexus is a region on the lung root formed by the entrance of the nerves at the hilum. The nerves then follow the bronchi in the lungs and branch to innervate muscle fibers, glands, and blood vessels. Choices: - renal plexus - heart plexus - brain plexus - pulmonary plexus A:
pulmonary plexus