Why are there two fat feedback signals?
What will be an ideal response?
One reason may be that leptin levels are more closely correlated with subcutaneous fat whereas insulin levels are more closely correlated with visceral fat. Thus, each fat signal could provide different information
>visceral fat is more common in males than females and poses the greater threat to health
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The mode of transmission of B. pertussis can best be described as:
a. person-to-person contact. b. exposure to contaminated water. c. inhalation of contaminated air. d. close contact with animals.
Nicotine and morphine are classified as
a. alkaloids. b. cyanogens. c. plant pigments. d. terpenoids
Where a cold, dry season alternates with a cold, rainy
season, __________dominate. Fill in the blank(s) with the appropriate word(s).
A researcher creates an antibiotic that binds to a protein present only on B. anthracis (the causative agent of anthrax), lysing the cell from the outside. After a couple of years using this antibiotic, some resistant organisms are found. Which of the following best outlines the mechanism for development of this resistance?
a. mutation in B. anthracis ? altered target ? resistant bacterium b. cell division of B. anthracis ? altered porins ? resistant bacterium c. mutation in B. anthracis ? altered porins ? resistant bacterium d. cell division of B. anthracis ? altered target ? resistant bacterium