Answer the following question given this paragraph: Abnormally high activity of the parathyroid gland can cause hyperparathyroidism, a disorder caused by an overproduction of PTH that results in excessive calcium reabsorption from bone. Hyperparathyroidism can significantly decrease bone density, leading to spontaneous fractures or deformities. As blood calcium levels rise, cell membrane permeability to sodium is decreased, and the responsiveness of the nervous system is reduced. At the same time, calcium deposits may collect in the body's tissues and organs, impairing their functioning. In contrast, abnormally low blood calcium levels may be caused by parathyroid hormone deficiency, called hypoparathyroidism, which may develop following injury or surgery involving the thyroid gland. Low blood calcium. Q: Abnormally high activity or low activity of the parathyroid gland can cause disorders related to levels of what bone mineral? Choices: - potassium - collagen - magnesium - calcium A:
calcium
(Question)
Answer the following question given this paragraph: These two tracts connect the hypothalamus with the major parasympathetic nuclei in the brain stem and the preganglionic (central) neurons of the thoracolumbar spinal cord. The hypothalamus also receives input from other areas of the forebrain through the medial forebrain bundle. The olfactory cortex, the septal nuclei of the basal forebrain, and the amygdala project into the hypothalamus through the medial forebrain bundle. These forebrain structures inform the hypothalamus about the state of the nervous system and can influence the regulatory processes of homeostasis. A good example of this is found in the amygdala, which is found beneath the cerebral cortex of the temporal lobe and plays a role in our ability to remember and feel emotions. Q: What also receives input from other areas of the forebrain through the medial forebrain bundle? Choices: - hippocampus - pituitary gland - optic chiasm - hypothalamus A:
(Answer)
hypothalamus
Ques: Answer the following question given this paragraph: Hypersensitivities The word "hypersensitivity" simply means sensitive beyond normal levels of activation. Allergies and inflammatory responses to nonpathogenic environmental substances have been observed since the dawn of history. Hypersensitivity is a medical term describing symptoms that are now known to be caused by unrelated mechanisms of immunity. Still, it is useful for this discussion to use the four types of hypersensitivities as a guide to understand these mechanisms (Figure 21.28). Q: What term simply means sensitive beyond normal levels of activation? Choices: - hyposensitivity - isosensitivity - monosensitivity - hypersensitivity A:
Ans: hypersensitivity
(Q).
Answer the following question given this paragraph: One way to test a cause and effect hypothesis is to perform a controlled experiment. In a controlled experiment, two identical experiments are carried out side-by-side. In one of the experiments, the independent variable being tested is used, and in the other experiment, the control, the independent variable is not used. Q: What type of experiment involves two identical experiments carried out side-by-side, with and without an independent variable? Choices: - trial run - defined experiment - blind test - controlled experiment A:
(A).
controlled experiment
Ques:Answer the following question given this paragraph: Excretion is any process in which excess water or wastes are removed from the body. Excretion is the job of the excretory system. Besides the kidneys, other organs of excretion include the large intestine, liver, skin and lungs. Q: What is the process whereby excess water and waste is removed from the body? Choices: - filtration - diffusion - exhalation - excretion A:

Ans:excretion
Ques:Answer the following question given this paragraph: Q: What do hydrocarbons consist of? Choices: - carbon and oxygen - carbon and helium - carbon and water - carbon and hydrogen A:

Ans:
carbon and hydrogen