Human Biology Custom Edition
11th Edition
ISBN: 9781337631532
Author: Cecie Starr, Beverly McMillan
Publisher: Cengage Learning
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Chapter 23, Problem 6SQ
Summary Introduction
Introduction: In comparative morphology, the anatomical and morphological features are compared between fossil and modern-day organisms or between modern-day organisms in order to establish their ancestry and relatedness.
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Fossilsa. are the remains and traces of past life.b. can be dated absolutely according to their location in strata.c. are usually remains of soft tissues, such as muscle.d. have been found for all types of animals except humans.
A. How did Charles Darwin explain his
observations?
1. Species of tortoise and finch varies from
island-to-island?
2. Fossil of different animals have
similarities.
3. There are fossil of extinct animals.
Vertebrates
Gnathostomes
Tetrapods
Amniotes
Mammals
Phylogeny based on
morphology
Amphioxus
Lampreys
Sharks
Ray-finned fishes
Coelacanth
Lungfishes
Amphibians
Monotremes
Marsupials
Placental mammals
Turtles
Tuatara
Lizards
Snakes
Turtles
Crocodiles
Birds
Phylogeny based on
DNA sequence
Chapter 23 Solutions
Human Biology Custom Edition
Ch. 23 - Prob. 1RQCh. 23 - As shown in Figure 23.25, there is considerable...Ch. 23 - Prob. 3RQCh. 23 - Prob. 4RQCh. 23 - Prob. 5RQCh. 23 - Prob. 6RQCh. 23 - Prob. 1SQCh. 23 - The relative numbers of different genes (alleles)...Ch. 23 - A difference in survival and reproduction among...Ch. 23 - The fossil record of evolution correlates with...
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- I need the answer as soon as possiblearrow_forwardPart 6: Complete the chart below. Place an "X" in the appropriate column to indicate which mystery fossils have the traits listed. Note: A trait may be found in more than one mystery fossil. Mystery Fossil A Mystery Fossil B Mystery Fossil C Large Cranial Capacity Name: Kate McNamee. Austra/Homo Worksheet Orthognathic (Flat) Face Low Cranium 2. Based on this information, which mystery fossils do you think belong to the genus Homo? 3. Based on this information, which mystery fossil do you think is an australopithecine?arrow_forward1. Compare the different stuctures on the photo. 2. What do scientist infer from the similarities between these structures? 3. Describe how the DNA evidence might be used to confirm scientist's conclusion about any relationship between these organisms.arrow_forward
- Use the scenario to answer the question. Scientists have found one new fossil that is similar to Archaeopteryx. It is only the second fossil of its kind. It shows an animal that had a long-feathered tail and small teeth, like non-avian dinosaurs. But the animal also had flight feathers and wings, like modern birds. The fossil also shows a fused clavicle bone, which confirms the relationship between birds and dinosaurs because they are the only two groups with this characteristic, What is true about this scenario? It shows evidence of evolution. It shows evidence of causation. It shows evidence of climate change. It shows evidence of widespread expression.arrow_forwardAn unidentified animal is noted to have simple tissues and possesses specialized cells called nematocysts. What is its overall body shape? Group of answer choices A. Asymmetrical B. Bilateral Symmetry C. Radial Symmetry D. Biradial Symmetryarrow_forwardIf you were to build a phylogenetic tree of living animals, which of the following derived characters would appear first? A. deuterostome development B. true tissues C. protostome development D. bilateral symmetryarrow_forward
- You studied the intermembral index in Lab 4. The graph below plots new data not in this lab for Hispanopithecus laietanus. It has an approximate intermembral index of ____ and shares similar morphological characteristics with tax classified as ____ primates. a. 4.53; terrestrial quadrupedal b. 113; suspensory c. 109; vertical clinging and leaping d. 96; arboreal quadrupedal e. There is not enough information provided to make a conclusion.arrow_forwardThe tarsier belongs in the suborder ____ because it shares characteristics with both prosimians and anthropoids. a. Haplorhini b. Strepsirhini c. Anthropoidea d. None of the above; the tarsier is placed in its own suborder.arrow_forward34arrow_forward
- 6. Organisms classified as “birds” share a common feature. What shared derived character defined this taxonomic group? 7. What feature is present in all animals but is not present in birds and reptiles? 8. Reptiles, birds, and mammals are amniotes. I’m addition to an amniotic egg, the common ancestor of all reptiles, birds, and mammals had a thick epidermal layer of scales partially composed of a protein called keratin. Keratinized skin helps prevent water loss in terrestrial environment. A. what type (or form) of Keratinized epidermal structure represents the ancestral character state of all reptiles, birds, and mammals?arrow_forwardThe insects have two distinct types of development. The more primitive insect orders pass through a series of stages by incomplete metamorphosis. In contrast, complete metamorphosis is characteristic of some of the more advanced insect orders. What insect from listed below have incomplete metamorphosis cycle? Select one: a. Body louse b. Tsetse fly c. Human flea d. Mosquito e. Sandflyarrow_forwardWhich of the following groups of early-diverging animals is comprised of two layers of cells that float around in the ocean? a. Cnidaria b. The sponges c. Ctenophores d. Placozoaarrow_forward
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