Food leaving the pharynx moves next into the stomach. Indicate whether the statement is true or false
False - esophagus
You might also like to view...
Recent successes in gene therapy are attributed to the _____
a. focus on germ-line gene therapy, rather than somatic gene therapy b. development of improved vectors c. sequencing of the human genome d. improvements in prenatal testing techniques e. improvements in gene doping
A motor unit is
a. a single muscle fiber activated by one neuron. b. the complete set of muscle fibers in a single muscle. c. a single sarcomere. d. a single muscle fiber activated by many neurons. e. a group of muscle fibers activated by one neuron.
Why was it important in the studies of Beadle and Tatum that Neurospora is haploid?
a. Because it is easier to grow haploid molds in the laboratory. b. Because haploid molds have simpler nutritional requirements than do diploid molds. c. Because a mutation that arises is not masked by a normal allele on a homologous chromosome. d. Because haploid Neurospora will always mutate. e. Because diploid Neurospora will always mutate.
The likelihood of men over the age of 40 developing an enlarged prostate (often called benign prostatic hyperplasia, or BPH) increases with age
An enlarged prostate is not the same as cancer, and it does not increase a man's risk for developing prostate cancer. BPH is so common that it has been said that all men would have an enlarged prostate if they were to live long enough! Some of the complications of BPH are increased frequency of urination, reduced urine output, and uncontrolled "dribbling" after urination. After an enlarged prostate is surgically removed (a prostatectomy), these symptoms disappear. Based on this scenario and your knowledge of the urinary system, which of the following must be TRUE? A) Prostate enlargement reduces the ability of the kidneys to filter wastes from the bloodstream. B) The prostate is the only gland that releases ADH, which decreases urine production. C) An enlarged prostate presses on the urethra and bladder, affecting urination. D) The prostate is part of the kidney and assists in urine production.