All of the following structures in the eye are black, due to the presence of melanin pigment, except
A. the pigmented epithelium.
B. the ciliary body.
C. the retina.
D. the choroid.
E. All of these eye structures are black, due to the presence of melanin pigment.
Answer: C
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Which of the following statements is true about the pancreas?
A) The pancreas lies over the top of the stomach. B) The sole function of the pancreas is to produce hormones. C) The pituitary gland produces stimulating hormones that control the pancreas. D) The islets contain a variety of different cells producing different hormones. E) The pancreas stores glucose, which can be released into the blood.
Pharyngeal constrictor muscles are especially important for which function?
A. Breathing B. Swallowing C. Expressing fright D. Chewing food E. Mixing food with enzymes
Secretion refers to release to the cell's exterior, on appropriate stimulation, of a product produced by the cell
Indicate whether the statement is true or false
In cellular respiration,
A. cells breathe, or take in, O2 and give off CO2. B. energy is absorbed from glucose and is transferred to CO2. C. mitochondria release glucose molecules. D. energy is released from molecules and is transferred to other molecules.