Choose the most influential contributing factor to the reduced sense of smell in humans compared with the other great apes.
A. pseudogenes
B. conservation of synteny
C. aneuploidy
D. one more chromosome in humans compared to the other great apes
E. number of olfactory receptor (OR) genes present in the genome
A. pseudogenes
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Your dog becomes ill and you rush him to the veterinarian's office. A technician draws blood from your dog's leg for a vet-ordered lab test. After a few minutes the lab results are given to the vet, who immediately grabs a bottle from a shelf and begins to fill a syringe with an unknown fluid. You inquire about the fluid, and the vet informs you that the fluid is necessary to manage your dog's
metabolic acidosis. Based on the information provided, what is acidosis, and what is the likely effect of the veterinarian's injection? A. Acidosis means that your dog's blood pH has dropped from its normal level, and an injection of saline is required to reverse the condition. B. Acidosis means that your dog's blood pH has increased from its normal level, and an injection of saline is required to reverse the condition. C. Acidosis means that your dog's blood pH has decreased from its normal level, and an injection of buffering solution is required to reverse the condition. D. Acidosis means that your dog's blood pH has increased from its normal level, and an injection of buffering solution is required to reverse the condition.
Which statement about the geologic time scale is
incorrect? a. Mammals originated early in the Mesozoic era. b. Adaptive radiation of flowering plants, insects, and birds took place during the Mesozoic era. c. Mass extinction of the dinosaurs occurred about 65 million years ago. d. Reptiles originated during the Paleozoic era. e. Eukaryotes originated during the Proterozoic eon.
Which of the following statements concerning starvation is true?
a. Ketone bodies are rapidly produced. b. Fat metabolism is greatly reduced. c. There is a risk of the blood becoming too basic. d. There are too many phytochemicals in the blood. e. It is safe for obese individuals to undergo starvation
Ribose differs from deoxyribose by having:a
two attached nitrogenous bases. b. one less oxygen. c. an extra hydroxyl group. d. an extra carbon in the ring. e. one less carbon in the ring.