In what order did these organisms diverge from the lineage of the common ancestral primate?
A. H. neandertalensis, H. ergaster, H. habilis, gorillas and chimpanzees, hominins
B. monkeys, gibbons, prosimians, orangutans, H. habilis, H. ergaster, humans
C. gibbons, lemurs, tarsiers, H. habilis, monkeys, H. neandertalensis, hominins
D. prosimians, monkeys, gibbons, orangutans, gorillas and chimpanzees, hominins
Answer: D
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The gene Brachyury promotes development of the notochord and the vertebrae in vertebrate animals. Among the rodents, most species have a long tail, but capybaras have a very short tail. What is the most likely difference you might expect to see for the Brachyury gene in capybaras compared to long-tailed rodents?
A. A smaller range of gene expression B. Deletion of the gene C. Higher levels of expression D. An expanded range of gene expression E. Mutation to resemble the ascidian gene Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about the gene Brachyury? Consider Possibilities · Consider the different answer options. Which can you rule out? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The term “respiration” in animals refers to the ____
a. movement of oxygen into an animal only b. movement of carbon dioxide out of an animal only c. movement of oxygen into an animal and the movement of carbon dioxide out of the animal d. binding of oxygen to hemoglobin molecules in the blood e. diffusion of oxygen across a cell membrane
What are integral membrane proteins?
What will be an ideal response?
Which of the following is true concerning saturated fatty acids?
A) They are the predominant fatty acid in corn oil. B) They have double bonds between the carbon atoms of the fatty acids. C) They are usually liquid at room temperature. D) They are usually produced by plants. E) They have a higher ratio of hydrogen to carbon than do unsaturated fatty acids.