Which mineral may contribute to high blood pressure?

a. potassium
b. calcium
c. sodium
d. iron
e. iodine


C

Biology & Microbiology

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The most common etiologic agent of septic arthritis in adults younger than 30 years of age is:

a. Neisseria gonorrhoeae. b. Staphylococcus aureus. c. Haemophilus influenzae. d. Streptococcus agalactiae.

Biology & Microbiology

Spinal cord neurons processing pain information release ____

a. substance P b. bradykinins c. prostaglandins d. histamine e. acetylcholine

Biology & Microbiology

King Frederick William of Prussia failed in his attempts to create an army of giants because of all the

following reasons except one. Select the exception. A. Human life spans are too long. B. Children of the crosses were actually shorter than their parents. C. Size in humans is too complex a trait. D. There was too much resistance to his program because of ethical considerations. E. There are no exceptions. All of these reasons are correct.

Biology & Microbiology

Imagine a situation much like the example of guppies in Trinidad and Tobago described in your text. In this situation, populations of guppies who once shared an evolutionary history have been separated by the for-mation of barrier waterfalls

If you are an evolutionary biologist studying reproductive trade-offs, make a prediction about the reproduc-tive strategies you might find in female guppies found on each side of this barrier when the upstream side population faces lower predation than the downstream side. In this situation, the predators on the down-stream side are also larger and can eat any guppy offspring, no matter the size. Describe your predictions about how females on each side of this barrier might reproduce and explain the trade-offs faced by reproduc-ing females. What will be an ideal response?

Biology & Microbiology