Which of the following is a light-sensitive pigment of the retina?
a. Rhodopsin
b. Opsin
c. Melanin
d. Chlorophyll
e. Xanthophylls
Answer: A
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Women in their 20s who breast-feed for up to two years may reduce the risk of breast and ovarian cancer
Indicate whether the statement is true or false
To lower her risk for osteoporosis, Jaelyn has been encouraged to regularly participate in weight-bearing exercises. All of the following are considered weight-bearing exercise except ________.
A. dancing B. swimming C. hiking D. tennis
Which of the following CORRECTLY matches one of the aging theory subcategories to one of the two broad categories of aging theories (the programmed theory or the damage or error theory)?
a. protein cross-linking theory-programmed theory b. immunological theory-damage or error theory c. epigenetic theory-programmed theory d. free radical theory-damage or error theory
Which mineral has as its primary function to bind phosphate groups in ATP and ATP-dependent enzyme reactions??
A) ?calcium B) ?magnesium C) ?potassium D) ?sodium