Which of the following is the function of the combination of epidermal ridges and dermal papillae?
A) increase storage of nutrients in the digestive tract
B) increase surface area for diffusion between the dermis and epidermis
C) increase sensory reception
D) increase secretion of milk in specialized integumentary glands
E) increase large reserves of lipids in adipose tissue
B) increase surface area for diffusion between the dermis and epidermis
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Which of the following is not detected by the peripheral chemoreceptors?
A. An increase in the level of hydrogen ions in the blood B. An increase in the level of carbon dioxide in the blood C. A decrease in the level of oxygen in the blood D. An increase in the level of sodium ions in the blood E. The peripheral chemoreceptors detect all of these changes.
Match the phase of mitosis with an event in that phase.
a. interphase b. prophase c. metaphase d. anaphase e. telophase 1. _____ Chromosomes align in the center of the cell 2. _____ DNA replicates 3. _____ Nuclear envelope reforms around the chromosomes 4. _____ Chromatin condenses into chromosomes 5. _____ Chromosomes are pulled away from the center of the cell
In general, activating a slow-oxidative motor unit in a muscle will generate more tension than activating a fast-glycolytic motor unit.
Answer the following statement true (T) or false (F)
Which of the following is true of the epidermis?
a. It is the outermost layer of skin. b. It is thicker than the dermis. c. It is made up of connective tissue. d. All of the above are true of the epidermis.