Loose Leaf For Integrated Principles Of Zoology
18th Edition
ISBN: 9781260411140
Author: Cleveland P Hickman Jr. Emeritus, Susan L. Keen, David J Eisenhour Professor PhD, Allan Larson, Helen I'Anson Associate Professor of Biology
Publisher: McGraw-Hill Education
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Chapter 14, Problem 5RQ
Summary Introduction
To define: The two mechanisms by which the yolk is supplied to the embryos of the
Introduction: The yolk is the portion of the egg that provides nutrition to the developing embryo. The yolk is present in the animals that lay eggs. It is also known as vitellus. The yolk provides different vitamins, proteins, and minerals to the embryo.
Summary Introduction
To determine: The evolutionary ancestral system and the derived system in the flatworms.
Introduction: The characters that organisms possess can be present as the evolutionary characteristic, or certain features can be derived in order to survive in a particular environment. These characters can be influenced by environmental conditions.
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Chapter 14 Solutions
Loose Leaf For Integrated Principles Of Zoology
Ch. 14 - Prob. 1RQCh. 14 - Prob. 2RQCh. 14 - Match the terms in the right column with the...Ch. 14 - Describe the body plan of a typical turbellarian.Ch. 14 - Prob. 5RQCh. 14 - Prob. 6RQCh. 14 - Prob. 7RQCh. 14 - Prob. 8RQCh. 14 - Prob. 9RQCh. 14 - Describe and contrast the tegument of most...
Ch. 14 - Prob. 11RQCh. 14 - Why is Taenia solium a more dangerous infection...Ch. 14 - Prob. 13RQCh. 14 - Define each of the following with reference to...Ch. 14 - Prob. 15RQCh. 14 - Prob. 16RQCh. 14 - What character unites members of clade Gnathifera?Ch. 14 - Prob. 18RQCh. 14 - What habitat is shared by micrognathozoans and...Ch. 14 - what is the normal size of a rotifer, where is it...Ch. 14 - Explain the difference between mictic and amictic...Ch. 14 - What is eutely?Ch. 14 - Prob. 23RQCh. 14 - Prob. 24RQCh. 14 - Prob. 25RQCh. 14 - Prob. 26RQCh. 14 - How could an endoparasite evolve from a...
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- Describe external fertilization process of sea urchin egg with diagramarrow_forwardWhat are the four extraembryonic membranes of amniotic eggs of birds and other reptiles and what is the function of each membrane?arrow_forwardIn the early stages of amphibian development, what layer is involved in yolk digestion? What is the basis for the distinction between germ layers in gastrulation? (min. 5 sentences)arrow_forward
- Describe embryonic gastrulation in protostomes vs. Deuterostomesarrow_forwardWhat distinguishes an amniotic egg from eggs laid by other animals, including fishes, amphibians, and invertebrates?arrow_forwardWhat are some advantages of the pronounced cephalization that occurred as vertebrates evolved from jawless fish to tetrapods?arrow_forward
- Explain: Is the degenerating blastocoel visible in the frog gastrula? How much yolk protrudes through the blastopore of a frog gastrula How much yolk protrudes through the blastopore of a frog gastrula? Chickens lack a larval stage. How do they compensate for this?arrow_forwardWhat is the function of the notochord? What organisms possess notochords throughout their lives and what organisms have notochords but degenerate in their early development?arrow_forwardIdentify the significance of gastrulation in the developmental process and compare gastrulation in the echinoderm (or in amphioxus), the amphibian, and the bird.arrow_forward
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