Unsaturated and polyunsaturated fats __________(increase/decrease) the amount of good cholesterol in arteries (HDL) in blood.
Fill in the blank(s) with the appropriate word(s).
increase
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In a study of tadpole coloration, you noticed that certain percentage of tadpoles in a population displayed a decreased ability to shift from dark coloration at night to light coloration during the day
These individuals were studied and found to have the normal number of melanophores that produced normal amounts of melanin pigment granules. You remember reading about melanophores and pigment granule transport in cells and that it involved the cytoskeleton. You investigated the cytoskeleton and found that all three elements, including the one you suspected, are completely normal. You then decide to look at the motor proteins to see if the cause might lie with one of them. Which of the following would be your hypothesis? A. The melanophores in these tadpoles have partially or non-functional kinesin that would normally transport organelles along microtubules to the center of the cell. B. The melanophores in these tadpoles have partially or non-functional kinesin that would normally transport organelles along microfilaments to the center of the cell. C. The melanophores in these tadpoles have partially or non-functional dynein that would normally transport organelles along microtubules to the center of the cell. D. The melanophores in these tadpoles have partially or non-functional dynein that would normally transport organelles along microfilaments to the center of the cell. E. The melanophores in these tadpoles have partially or non-functional myosin that would normally transport organelles along microfilaments to the center of the cell.
A hypothesized "first woman" (Eve) probably lived about ________ years ago.
A) 2,000 B) 20,000 C) 200,000 D) 2,000,000
Which of the following would affect the size of a zone of inhibition around an antiseptic or disinfectant disk? Select all that apply
a. The susceptibility of the microorganism to the chemical b. The concentration of chemical in the disk c. The cellular target of the chemical d. How quickly the chemical diffuses through the agar e. The depth of the agar
Who discoverd automes and sex chromosomes
What will be an ideal response?