Answer the following question given this paragraph: Electron Shells and the Bohr Model It should be stressed that there is a connection between the number of protons in an element, the atomic number that distinguishes one element from another, and the number of electrons it has. In all electrically neutral atoms, the number of electrons is the same as the number of protons. Thus, each element, at least when electrically neutral, has a characteristic number of electrons equal to its atomic number. An early model of the atom was developed in 1913 by Danish scientist Niels Bohr (18851962). The Bohr model shows the atom as a central nucleus containing protons and neutrons, with the electrons in circular orbitals at specific distances from the nucleus, as illustrated in Figure 2.6. These orbits form electron shells or energy levels, which are a way of visualizing the number of electrons in the outermost shells. These energy levels are designated by a number and the symbol "n. " For example, 1n represents the first energy level located closest to the nucleus. Q: What is the number of electrons equal to in every electrically neutral atom? Choices: - Electrons - molecules - nucleus - protons A:
protons
Answer the following question given this paragraph: Q: Most taste buds on the tongue are associated with nipple-shaped projections called what? Choices: - antennae - mucosa - cilia - papillae A:
papillae
Q: Answer the following question given this paragraph: Endocrinologist An endocrinologist is a medical doctor who specializes in treating endocrine disorders. An endocrine surgeon specializes in the surgical treatment of endocrine diseases and glands. Some of the diseases that are managed by endocrinologists include disorders of the pancreas (diabetes mellitus), disorders of the pituitary (gigantism, acromegaly, and pituitary dwarfism), disorders of the thyroid gland (goiter and Graves' disease), and disorders of the adrenal glands (Cushing's disease and Addison's disease). Endocrinologists are required to assess patients and diagnose endocrine disorders through extensive use of laboratory tests. Many endocrine diseases are diagnosed using tests that stimulate or suppress endocrine organ functioning. Blood samples are then drawn to determine the effect of stimulating or suppressing an endocrine organ on the production of hormones. For example, to diagnose diabetes mellitus, patients are required to fast for 12 to 24 hours. They are then given a sugary drink, which stimulates the pancreas to produce insulin to decrease blood-glucose levels. A blood sample is taken one to two hours after the sugar drink is consumed. If the pancreas is functioning properly, the blood-glucose level will be within a normal range. Another example is the A1C test, which can be performed during blood screening. The A1C test measures average blood-glucose levels over the past two to three months. The A1C test is an indicator of how well blood glucose is being managed over a long time. Once a disease such as diabetes has been diagnosed, endocrinologists can prescribe lifestyle changes and medications to treat the disease. Some cases of diabetes mellitus can be managed by exercise, weight loss, and a healthy diet; in other cases, medications may be required to enhance insulin's production or effect. If the disease cannot be controlled by these means, the endocrinologist may prescribe insulin injections. In addition to clinical practice, endocrinologists may also be involved in primary... Q: What does the a1c test measure over the past two to three months? Choices: - RBC levels - cholesterol levels - albumin levels - blood-glucose levels A:
A: blood-glucose levels
Question: Answer the following question given this paragraph: Q: Proto-oncogenes normally help regulate what? Choices: - cell transition - cell death - cell function - cell division A:
Answer: cell division
*Question*
Answer the following question given this paragraph: Some precipitation that falls on land soaks into the ground. This water becomes groundwater. Groundwater may seep out of the ground at a spring or into a body of water such as the ocean. Some groundwater is taken up by plant roots. Some may flow deeper underground to an aquifer. An aquifer is an underground layer of rock that stores water. Water may be stored in an aquifer for thousands of years. Q: Where does groundwater primarily come from? Choices: - erosion - evaporation - sediment - precipitation A:
**Answer**
precipitation
(Q).
Answer the following question given this paragraph: Chloroplasts are plastids that contain the green pigment chlorophyll. They capture light energy from the sun and use it to make food. A chloroplast is shown in Figure above . Q: What do you call plastids that contain the green pigment chlorophyll? Choices: - Gerontoplasts - Chromoplasts - Leucoplasts - chloroplasts A:
(A).
chloroplasts