Which of the following types of bonding is characterized by two or more atoms sharing electrons to fill their outer shells?
A. Charged bond
B. Ionic bond
C. Hydrogen bond
D. Covalent bond
Answer: D
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In cases where the plasma concentration of an ion or nutrient affects the secretion rate of a hormone, the affected hormone is usually a regulator of the homeostasis of that ion or nutrient.
Answer the following statement true (T) or false (F)
A fetus develops without macula densa in its nephrons. Which of the following will occur as a result?
A. The ability to detect sodium, potassium, and chloride ions in the nephron loop and secrete renin in response will be lost. B. Fluid cannot pass from the glomerular capillaries into the Bowman's capsule, so blood cannot be filtered. C. Renin will be able to convert angiotensinogen into angiotensin I, but angiotensin I cannot be converted into angiotensin II. D. Renin secretion in response to renal baroreceptors during low blood pressure conditions cannot occur.
Which of the following is a degenerative joint disease in which joint cartilage is gradually lost due to a combination of aging, obesity, wear and abrasion of the joints?
a) gouty arthritis b) Lyme disease c) bursitis d) osteoarthritis e) synovitis
What part of the cerebrum is located deep within the lateral fissure and functions to evaluate information about taste?
A) frontal lobe B) insula C) parietal lobe D) temporal lobe