bone morphology across reptiles. You find that in alligators a certain bone in the jaw has elongated whereas in a species of chameleon the bone has shortened in the jaw. In both species the bone still helps control feeding. Is this bone and skeletal morphology a homology? a. Yes, it is a homology b. No, it is not a homology c. Not enough information to tell d. The answer depends on the specific diet of each species

bone morphology across reptiles. You find that in alligators a certain bone in the jaw has elongated whereas in a species of chameleon the bone has shortened in the jaw. In both species the bone still helps control feeding. Is this bone and skeletal morphology a homology? a. Yes, it is a homology b. No, it is not a homology c. Not enough information to tell d. The answer depends on the specific diet of each species

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter24: Systematics And Phylogenetics: Revealing The Tree Of Life

Section: Chapter Questions

Problem 9TYK: Which of the following pairs of structures are homoplastic? a. the wing skeleton of a bird and the...

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A human forearm, a horse's front leg, a bat's wing, and a porpoise's flipper have similar bone structure. What conclusions can we draw from the similarities in bone structure between these mammals? a. Such homologies do not exist in other areas of the vertebrate skeleton. b. Similarities among vertebrate forelimbs suggest they evolved from a common ancestor. c. Similarities among vertebrate forelimbs suggest they have evolved convergently. d. The anatomy of the vertebrate forelimb is not currently undergoing natural selection. e. Differences among vertebrate forelimbs suggest that they evolved independently.
On a research expedition to the Galapagos, you and your research team discover four new species! All the animals appear to be chordates, but each animal has distinct traits: Animal A: Both vertebral column and jaws Animal B: Vertebral column, jaws, limbs and lays amniotic eggs (amniote) Animal C: Vertebral column Animal D: Vertebral column, jaws and limbs A. Identify four derived characteristics that all chordates share. B. Based on your understanding of phylogeny, map the animals and their traits onto the phylogenetic tree provided below. In your response, list each number (1-8) and indicate which trait or animal corresponds to that position on the phylogenetic tree.
Which of the following pairs of structures are homoplastic? a. the wing skeleton of a bird and the wing skeleton of a bat b. thewingofabirdandthewingofafly c. theeyeofafishandtheeyeofahuman d. the bones in the foot of a duck and the bones in the foot of a chicken e. the toes on the foot of a lizard and the toes on the foot of a human
In your Introduction to Biological Anthropology class, your instructor asks you to examine a fossil skull and determine which species it is. You note there is a sagittal keel at the top of the skull. Based on this information alone, to which species does the skull belong? A. Australopithecus boisei B. Homo habilis C. Australopithecus garhi D. Homo erectus
Given a positive genetic correlation between the lengths of the maxilla and the mandible of a bird bill (and in which the ancestral state is a short bill), selection for a longer bill without pleiotropic effects can result in - A. either part will shorten but not both. B. both maxilla and mandible becoming longer. C. both maxilla and mandible will not change from the ancestral short length. D. either part will lengthen but not both.
Fossilized remains of prehistoric mastodons show anatomical similarities to modern-day elephants. These similarities provided the first evidence that mastodons were related to modern-day elephants. Which of the following is the BEST additional evidence that mastodons were related to elephants? A. Mastodons walked on four legs like modern-day elephants. B. Mastodon tissues contained proteins with similar amino acid sequences compared to modern-day elephants. C. Mastodon fossils were found in the same area where modern-day elephants live. D. Mastodons ate a diet similar to that of modern-day elephants.
Which species has the most robust cheek bones? A. Homo erectus B. Homo rudolfensis C. Homo habilis D. Australopithecus afarensis
Which species has the most robust cheek bones? A.Homo rudolfensis B.Homo habilis C.Homo erectus D.Australopithecus afarensis
African Homo erectus cranial features include A. Thick cranial bones. B. Small browridges. C. A rounded skull. D. A sagittal crest.
Classic Neanderthal limb bones suggest that: A. the Neanderthals probably had limited manual dexterity, which probably accounts for the crudeness of Mousterian (= Middle Paleolithic) stone tools. B. even Neanderthal children had difficulty walking erect. C. the Neanderthals were stocky, heavily muscled people. D. the Neanderthals averaged over six feet tall. E. the Neanderthals had apelike limb proportions, including exceptionally long arms.
Pneumatic bones are: Question 32 options: a) Found in birds, they have air spaces that allow them to be light for flying. b) Found in fish, they help with buoyancy. c) Found in reptiles to help them survive on land instead of water. d) Found in amniotes to help protect the eggs from drying out.
Why was it significant that the bones were found to be articulated (their bones hadn’t separated from each other)? A. The individuals arrived in the cave either alive or shortly after the died. B. The individuals had decomposed outside of the cave, and other Homo naledi individuals put their skeletons together inside the cave. C. The bodies must have been placed in bags or coffins to keep the skeleton together as the body degraded. D. None of these are correct