Place the processes occurring in the digestive tract in the correct order.
I-Peristaltic waves of contraction propel the food along the esophagus.
II-Gastric juices are secreted with the arrival of food into the duodenum.
III-The acidic chyme is transferred through the pyloric sphincter.
IV-HCl and pepsin begin digestion of proteins into shorter polypeptides.
A. II, IV, and III
B. IV, III, and II
C. II, III, and IV
D. I, II, and IV
E. I, II, and III
A. II, IV, and III
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Maximum Likelihood and Bayesian Methods
A. involve the use of an evolutionary model. B. are a set of assumptions about how evolution is likely to happen. C. can be applied along with the principle of parsimony. D. ask the questions "what is the probability that an evolutionary model and proposed phylogenetic tree would give rise to the observed data and what is the probability that a particular phylogenetic tree is correct given the observed data and particular evolutionary model" respectively. E. involve the use of an evolutionary model; are a set of assumptions about how evolution is likely to happen; can be applied along with the principle of parsimony and ask the questions "what is the probability that an evolutionary model and proposed phylogenetic tree would give rise to the observed data and what is the probability that a particular phylogenetic tree is correct given the observed data and particular evolutionary model" respectively.
Two essential ingredients for photosynthesis are
a. carbon dioxide and oxygen. b. carbon dioxide and water. c. oxygen and water. d. oxygen and nitrogen gas
Which are not correctly paired?
a. Gastropodia - snails b. Cephalapodia - squid c. Bivalvia - mussels d. Gastropoda - clams e. Bivalvia - scallops
As a microbiologist you have been asked to investigate the regulation of a novel gene in a bacterial species. Given what is known about bacteria, the logical place to begin your investigation is
A. alternative splicing regulation. B. regulation by enhancer elements. C. regulation by general transcription factors. D. transcriptional regulation. E. translational regulation.