The part of the skin at the bottom of the picture, seen in a lighter shade of gray, is the
A) strata.
B) carotene.
C) dermis.
D) cornified region.
E) hypodermis
C) dermis.
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Which of the following leads to an increase in the ratio of LDL cholesterol to HDL cholesterol?
A. Exercise B. Weight reduction C. Cigarette smoking D. Estrogens E. All of these increase the LDL:HDL ratio.
Immunoglobulin A is abundant in endocrine gland secretions
Indicate whether the statement is true or false
The subunits of ribosomes are exported outside the nucleus into the cytoplasm, where they are assembled into their finished product.
Answer the following statement true (T) or false (F)
In addition to storage and mechanical breakdown of food, the stomach ________.
A) initiates protein digestion and denatures proteins B) is the first site where absorption takes place C) is the only place where fats are completely digested D) is the first site where chemical digestion of starch takes place