Bio 121 Campbell Biology Truman College
17th Edition
ISBN: 9781323670637
Author: Urry, Cain
Publisher: PEARSON
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Chapter 41, Problem 41.4CR
How does human anatomy indicate that our primate ancestors were not strict vegetarians?
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In mammals , the evolution/ development of the organs of the digestive system is closely related to a) the release of inducer molecules by specific cells b) the specialization of epithelial cells of the endoderm c) the specialization of neurocytes from the ectoderm d) the specialization of stem cells from the mesoderm to from blood vessels e) all of these occur as the digestive system develops
Vertebrates have a complete digestive system, which means that their digestive tract has two openings, a mouth and an anus. What are some of the evolutionary advantages among animals with a complete digestive tract?
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Chapter 41 Solutions
Bio 121 Campbell Biology Truman College
Ch. 41.1 - An animal requires 20 amino acids to make...Ch. 41.1 - Prob. 2CCCh. 41.1 - WHAT IF? If a zoo animal eating ample food shows...Ch. 41.2 - Prob. 1CCCh. 41.2 - In what sense are nutrients from a recently...Ch. 41.2 - Prob. 3CCCh. 41.3 - Explain why a proton pump inhibitor, such as the...Ch. 41.3 - Thinking about our nutritional needs and feeding...Ch. 41.3 - Prob. 3CCCh. 41.4 - Prob. 1CC
Ch. 41.4 - What features of a mammal's digestive system make...Ch. 41.4 - WHAT IF? "Lactose-intolerant" people have a...Ch. 41.5 - Explain how people can become obese even if their...Ch. 41.5 - WHAT IF? Suppose you were studying two groups of...Ch. 41.5 - Prob. 3CCCh. 41 - Prob. 41.1CRCh. 41 - Propose an artificial diet that would eliminate...Ch. 41 - Prob. 41.3CRCh. 41 - How does human anatomy indicate that our primate...Ch. 41 - Prob. 41.5CRCh. 41 - Fat digestion yields fatty acids and glycerol....Ch. 41 - The mammalian trachea and esophagus both connect...Ch. 41 - Which of the following organs is incorrectly...Ch. 41 - Prob. 4TYUCh. 41 - Prob. 5TYUCh. 41 - After surgical removal of the gallbladder, a...Ch. 41 - If you were to jog 1 km a few hours after lunch,...Ch. 41 - DRAW IT Create a flowchart to summarize the events...Ch. 41 - EVOLUTION CONNECTION Lizards and snakes cannot...Ch. 41 - SCIENTIFIC INQUIRY In human populations of...Ch. 41 - WRITE ABOUT A THEME: ORGANIZATION Hair is largely...Ch. 41 - SYNTHESIZE YOUR KNOWLEDGE Hummingbirds are well...
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- In the evolution of the vertebrates , the myocytes provide the stem cells for a) smooth mucscles that surround some of the capillaries to form arteries and veins b) inducing specialization of the ethodelial cells of the liver c) inducing the specialization of the ethodelial Beta cells of the pancreas d) inducing the speacialization of the epithelial cells of in the development of brain and spinal cord e) All of these are truearrow_forwardCan you suggest why, during the evolutionary history of animals, there has been a tendency for maximum body size to increase? Do you think it inevitable that complexity should increase along with body size? Why or why not?arrow_forwardA) Give an example of an animal that has a complete digestive tract. B) What is the most abundant and successful group of animals on earth today? C) Name at least three ways in which this group benefits humans. D) Name at least three ways in which this group causes trouble for humans.arrow_forward
- What is the mode of nutrition of an organism named Human? a.)Photo-autotrophic b.)Chemo-autotrophic c.)Saprophytic d.)Parasitic e.)Herbivore f.)Carnivore g.)Omnivorearrow_forwardThe evolution of jaws was a novel adaption that allowed organisms to process larger particles of food. True or false ?arrow_forwardWhat adaptive benefit do the three middle ear bones afford mammals? A) These bones helped to improve chewing, allow ancient mammals to diversify their diet. B) These bones improve hearing by allowing vibrations to be better picked up in air and the detection of higher frequencies. C) These bones allowed the detection of vibrations (hearing) for the first time in evolutionary history. D) These bones improve vision by providing an additional anchor point for the optic nerve.arrow_forward
- Which is NOT a common characteristic of mammals? A) have small brains compared to skull size B) have three middle ear bones C) have hair or fur D) young are fed milk produced by the mothers mammary glandsarrow_forwardIn the evolutionary tree of vertebrates, birds are most closely related to: a) Mammals b) Crocodiles c) Placoderms d) Salamandersarrow_forwardWhat is the mode of nutrition of an organism named Monkey? a.)Photo-autotrophic b.)Chemo-autotrophic c.)Saprophytic d.)Parasitic e.)Herbivore f.)Carnivore g.)Omnivorearrow_forward
- By watching these videos, https://www.coursera.org/lecture/early-vertebrate-evolution/3-1-evolution-of-jaws-part-1-J4bOm https://www.coursera.org/lecture/early-vertebrate-evolution/3-1-evolution-of-jaws-part-2-d90NX How and why do jaws have evolved?arrow_forwardWhat is the mode of nutrition of an organism named Dolphin? a.)Photo-autotrophic b.)Chemo-autotrophic c.)Saprophytic d.)Parasitic e.)Herbivore f.)Carnivore g.)Omnivorearrow_forwardWhat are the genetic changes that allow the repurposing of existing body parts during evolution?arrow_forward
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