what describes the liver's structure or function?
What will be an ideal response?
removes iron from blood, converts glycerol and amino acids to glucose molecules, largest gland in the body
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Which of the following is consistent with the out-of-Africa hypothesis?
A) Modern Homo sapiens can trace their origin back to Neanderthals. B) Modern Homo sapiens can trace their origin back to Homo erectus. C) Interbreeding between early hominin species in Europe and Asia lead to the distinctive features of modern Homo sapiens. D) Homo sapiens have a common ancestor with Neanderthal and Homo erectus from Africa but did not interbreed with them. E) Modern Homo sapiens and Neanderthals have no common ancestor more recent than the first mammals.
Compare inspiration and expiration in terms of pressure and volume changes producing airflow. When breathing
quietly, why is inspiration considered active while expiration is considered passive? What will be an ideal response?
Answer the following questions true (T) or false (F)
1. Supportive care is the only treatment for staphylococcal food poisoning. 2. Marine mammals are the normal host for Anisakis simplex adults. 3. Invasive extraintestinal amebiasis is the most severe type of Entamoeba histolytica infection.
Thanks to a novel recessive mutation, a certain plant species has begun to invade colder Arctic regions outside of its normal range. However, this cold-tolerant mutation has not yet become fixed in the population. A second mutation arises that promotes self-pollination. Do you predict that the self-pollination allele will be selected for in the Arctic regions? Why or why not?
A. No. Plants that produce flowers must be cross-pollinated for proper seed development. B. Yes. The self-pollinated plant is more likely to maintain the cold-tolerant mutation, and plants in the Arctic are unlikely to be visited by pollinators. C. No. Outcrossing is always beneficial, since it enhances genetic diversity. D. Cannot make a prediction from the information given. It depends on whether the plant is normally insect pollinated or wind pollinated.