Campbell Biology: Australian And New Zealand Edition + Mastering Biology With Etext
Campbell Biology: Australian And New Zealand Edition + Mastering Biology With Etext
11th Edition
ISBN: 9781488687075
Author: Lisa, A. Urry
Publisher: PEARSON
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Chapter 32, Problem 6TYU

SCIENTIFIC INQUIRY • INTERPRET THE DATA Redraw the bilaterian portion of Figure 32.11 for the nine phyla in the table below. Consider these blastopore fates: protostomy (mouth develops from the blastopore), deuterostomy (anus develops from the blastopore), or neither (the blastopore closes and the mouth develops elsewhere). Depending on the blastopore fate of its members, label each branch that leads to a phylum with P, D, N, or a combination of these letters. What Is the ancestral blastopore fate? How many times has blastopore fate changed over the course of evolution? Explain.

Blastopore Fate Phyla
Protostomy (P) Platyhelminthes, Syndermata, Nematoda; most Mollusca, most Annelida; few Arthropoda
Deuterostomy (D) Echinodermata, Chordata; most Arthropoda; few Mollusca, few Annelida
Neither (N) Acoela
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Match the term that best describes the different groups of primates. a)Gibbons and Siamangs b)Gorillas c)Bonobos d)Lemurs and Lorises e)Marmosets CHOOSE Small bodied apes that are mostly brachiators type of new world monkey with the ancestral trait of retained claws largest primates that are primarily vegetarian  morphologically similar to chimpanzees; copulate throught female estrus cycle the primates with the most ancestral/ primitive traits
INSTRUCTIONS: 1. Fill out the blank with their Dichotomous key.2. In each numbered series you should read both choices, determine which choice best applies to the Phylum. Note that some Phyla are already given as guides.3. Proceed where the key tells you to go, often skipping other steps (numbers) in between that do not apply.   Dichotomous key for the Major Invertebrate Phyla 1. Radial symmetry or asymmetry…………………………………………….……………………………………….… Proceed to Number 2    Bilateral symmetry………………………………………….……………………………………………………………..… Proceed to Number 4 2. Highly porous surface, not true tissues……………………………………Phylum ________________    Surface is not highly porous, true tissues present………………………………………………………..….. Proceed to Number 3 3. Exhibits pentaramous symmetry and tube feet……………………….Phylum _______________     Lacks pentamerous symmetry and tube feet, possesses tentacles (with nematocysts)…………………………………………………………………………Phylum  ________________ 4. Macroscopic colony of sessile, microscopic…
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