Since they produce ribosome subunits, one would expect to find large numbers of nucleoli in cells that synthesize
A. proteins.
B. steroid hormones.
C. energy sources.
D. pigments.
Answer: A
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Answer the following statements true (T) or false (F)
1. Food is contained in the gastrointestinal tract from the time of ingestion until it is completely digested and the waste prepared for elimination. 2. The circular folds of the small intestine enhance absorption by causing the chyme to spiral, rather than to move in a straight line, as it passes through the small intestine. 3. As food passes through the digestive tract, it becomes less complex and the nutrients are more readily available to the body. 4. Some of the microbes that often invade other organs of the body are rarely found in the stomach. The reason for this is the presence of HCl. 5. Kupffer cells are found in the liver and are responsible for removing bacteria and worn-out cells.
Label I represents which structure(s)?
A) mucosal glands
B) muscularis mucosa
C) villi
D) mucous epithelium
E) lamina propria
Nails are formed by the _____ layer.?
A) ?epidermal B) ?dermal C) ?hypodermal D) ?subcutaneous
This figure shows the lymphatic system. What structure does number 8 indicate?
A. Spleen B. Cisterna chyli C. Thymus gland D. Lymphatic nodule E. Adenoid