MASTERING BIOLOGY F/CAMPBELL MCC >I<
1st Edition
ISBN: 9781323915691
Author: Pearson
Publisher: PEARSON
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Chapter 33, Problem 9TYU
FOCUS ON EVOLUTION
The human esophagus and trachea share a passage leading from the mouth and nasal passages, which can cause problems. After reviewing vertebrate evolution (see Concept 21.4), explain how descent with modification explains this “imperfect” anatomy.
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PART II. COMPARATIVE ANATOMY AND EMBRYOLOGY EVIDENCE
> Using the information in the Reading file part Il and textbook reading, answer the following
questions:
1. Whales possess vestigial organs in the form of pelvic girdle and hind limb bones. How would
you explain this?
Page 3 of 6
Evolution Lab Exercise Report (by Dr. Lapik)
2. How can you explain that, while forelimbs of bats and human arms are used for vastly different
purposes, they do have similar anatomy?
3. How would you explain the presence of gill slits in embryos of animals that do not form gills?
Please I need help understanding what cavity this is that the arrow is pointing to the sheep heart.
Chapter 33 Solutions
MASTERING BIOLOGY F/CAMPBELL MCC >I<
Ch. 33.1 - An animal requires 20 amino acids to make...Ch. 33.1 - Prob. 2CCCh. 33.1 - WHAT IF? if a zoo animal eating ample food shows...Ch. 33.2 - Prob. 1CCCh. 33.2 - In what sense are nutrients from a recently...Ch. 33.2 - Prob. 3CCCh. 33.3 - How does swallowed food reach the stomach of a...Ch. 33.3 - Explain why a proton pump inhibitor, such as the...Ch. 33.3 - Prob. 3CCCh. 33.4 - Prob. 1CC
Ch. 33.4 - Prob. 2CCCh. 33.4 - Prob. 3CCCh. 33.5 - Prob. 1CCCh. 33.5 - The energy required to maintain each gram of body...Ch. 33.5 - Prob. 3CCCh. 33 - The mammalian trachea and esophagus both connect...Ch. 33 - Which organ is incorrectly paired with its...Ch. 33 - Which of the following is not a major activity of...Ch. 33 - Prob. 4TYUCh. 33 - Prob. 5TYUCh. 33 - If you were to jog 1 km a few hours after lunch,...Ch. 33 - Prob. 7TYUCh. 33 - Prob. 8TYUCh. 33 - FOCUS ON EVOLUTION The human esophagus and trachea...Ch. 33 - Prob. 10TYUCh. 33 - Prob. 11TYU
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- Jay Guide The human embryo and the embryos of other animals with backbones have gill slits. According to the modern evolutionary theory, this best supports the idea: Mark only one oval. That fish are our closest relatives All embryos breathe through their gills All animals with backbones are related by common ancestry All organisms have gill slits at an early stage in their developmentarrow_forwardChoose all that apply Segmentation Can be fused into specialized functional regions Is seen in insects, worms, and their relatives Is important in the evolution of increasing organismal disparity Is seen in the Cnidaria (jellyfish and friends) Is seen in vertebrates (animals with backbones, like you)arrow_forwardMany cephalopods have a structure found inside of their head called the "pen". Because cephalopods have a "pen", evolutionary biologists have concluded; Cephalopods are evolving an endoskeleton The pen is the result of a random mutation in cephalopods The ancestor to the these cephalopods had a shell That cephalopods are evolving a shellarrow_forward
- Based on the anatomy of dogfish shark The serosa lining the pleuropertioneal cavity is the visceral peritoneum?True/False The mesogaster is part of the ventral mesenteries?True or Falsearrow_forwardHow can embryos help scientists understand evolution? Embryos go through various stages that suggest the animal’s evolutionary process. Embryos are frequently fossilized and illustrate change over time. Embryos provide evidence for which life forms existed at the same time. Embryos contain the code for all life on Earth.arrow_forwardMorphology - Comparative Anatomy More evidence for evolution is offered by comparing the anatomy, or body parts, of different organisms. Many animals have body parts that are similar in both structure and function called homologous structures. The forelimbs of animals like humans, whales, birds, and other creatures are strikingly similar even though the forelimbs are used for different purposes such as lifting objects, swimming, or flying. The different changes in the forelimbs are adaptations to the needs of the organisms. Darwin also observed that animals have structures that they do not use, which are called vestigial organs. These are structures that an organism has that do not have a function, though they may have had one in the past. In humans they include the appendix, the fused tail vertebrae, and Humerus wisdom teeth. Perhaps an environmental change made the organ unnecessary for survival, and the organ gradually becomes Radius Ulna Carpals nonfunctional. For instance, the…arrow_forward
- E Sylvanus Gator - Zbarsk x e) StudentVUE Presentation Session ses/502861/quizzes/750681/take/questions/4415505 opy of mom it for.. • Maps G G old Telephone Ima. O Preview attachmen.. Vinta Question 4 Fur seals and sea lions have similar anatomy. They probably have a common ancesto What additional evidence would also support the idea that the two animals have a common ancestor? O Both animals live in the Pacific Ocean. O The animals are members of different taxonomic kingdoms. O The animals have very similar sequences in their CNA. O Ten million year old fossils are found of both animals. • Previous Nextarrow_forwardA plane that divides an animal into equal right and left portions is. diagonal midsagittal coronal transversearrow_forwardTest Your Understanding 7.Which of the following is true of mammals? (a) they evolved from saurischian dinosaurs (b) they are exotherms (c) they have hair and three middle ear bones (d) mammalian embryos do not have an amnion (e) they all bear their young alive (do not lay eggs).arrow_forward
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