Jay GuideThe human embryo and the embryos of other animals with backbones have gill slits. According to the modernevolutionary theory, this best supports the idea:Mark only one oval.That fish are our closest relativesAll embryos breathe through their gillsAll animals with backbones are related by common ancestryAll organisms have gill slits at an early stage in their development

The human embryo and embyos of other animals with with backbones have gill slits. Pharyngeal gill…

Answered: The human embryo and the embryos of…

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter46: Gas Exchange

Section: Chapter Questions

Problem 15TYU

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Scientists compare the structures of a chicken embryo and a human embryo at the same stage of development. They find that both vertebrates have similar shapes and structures, including the presence of gill slits and tails. How is this comparison of the embryos used as supporting evidence of evolution? A. The similarities suggest that chickens and humans are the direct descendants of modern day fish with tails and gill slits. B. The similarities suggest that vertebrates passthrough each of the adult stages of their evoluntionary history as they develop. C. The similarities suggest that vertebrates can undergo genetic changes during development that lead to the evolution of new species D. The similarities suggest that chickens and humans descend from ancestors with genes that code for the development of tails and gill slits
Icefish live in the extremely cold ocean near Antarctica.They are the only vertebrates that do not make hemoglobin. They have a large heart and take up oxygen acrosstheir skin, as well as their gills. Why are icefish thoughtto be especially threatened by ongoing ocean warming?
In the evolution of the modern horse, which of the followingwas the goal of the evolutionary process?a. large sizeb. single toec. change in tooth sized. change in tooth shapee. None of these are correct.
In 1798, a stuffed platypus specimen was delivered tothe British Museum. Reports that it laid eggs createdmuch confusion. To modern biologists, a platypus isclearly a mammal. It has fur and the females producemilk. Young animals have typical mammalian teeth thatare replaced by hardened pads of the “bill” as the animalmatures. Why do you think modern biologists can moreeasily accept that a mammal can have some reptileliketraits than scientists who were considering this animal inthe late 1700s?
All vertebrates breathe with either gills or lungs. Which is a property of gills only and not lungs?
Briefly explain how bat's and bird's wings arr evolution evidence for both homologous and analogous structures
Lungs ventilated with water occur in some animals—most notably sea cucumbers—but are rare. Why would water lungs be unlikely to be favored by natural selection? Give as many reasons as possible.
How 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.
Essay on (2 pages): Dogfish sharks (Squalus acanthias) represented “primitive” gnathostomes and cats (Felis catus) represented the “derived” state. Was this appropriate? How does the anatomy of a cat reflect humans’ shared ancestry with sharks?
WORD FILL INS a) All chordates as embryos have the start of gills- what are these called? ____ pouches b) The blood that flows from the heart into the gills or lungs is in the _____ circuit. c) Air enters an insect's body through holes called ____ and into vessels called trachea. d) Insects have a/n _____ circulatory system which means blood-like fluid that flows around freely inside their bodies.
What is /are the most recent ancestor/s of the following: Modern Fishes Earliest amphibian (What group of fishes gave rise to earliest amphibians?) Earliest reptiles Earliest birds Earliest mammals Describe the morphological features of their ancestor/s briefly.
Pakicetus is an ancient wolf-like organism that lived 50 million year ago. It had wolf-like ears and nostrils on the front of its skull. Modern whales have a similar ear structure, but their nostrils are on the back of their skull. Aetiocetus lived 25 million years ago, had the same ear structure as both Pakicetus and modern whales, but nostrils in the middle of its skull. According to this information, the most likely conclusion that biologists could draw about the relationship of Aetiocetus to the other organisms is that Aetiocetus...

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