Campbell Biology, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (10th Edition)
10th Edition
ISBN: 9780133922851
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
Publisher: PEARSON
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Chapter 32.4, Problem 2CC
WHAT IF? Ø Suppose ctenophores are basal metazoans and sponges are the sister group of all remaining animals. Under this hypothesis, redraw Figure 32.11 and discuss whether animals with tissues would form a clade.
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See attached. 1. Which pair of animals in numbers 1-3 belongs to a common ancestral group? Explain your answer.2. Fossils and anatomical records both provide pieces of evidence of evolution. How do you determine the age of fossils of an Aurorazhdarcho micronyx and an Archeopterix?
The phylogenetic tree in Exercise 1 above shows an outdated relationship between Brachiopoda, Bryozoa, and Mollusca. We now know that: (1) Brachiopoda is more closely related to Mollusca; and (2) Bryozoa forms the sister-group to the clade formed by Brachiopoda+Mollusca. In the space below draw a phylogenetic tree showing the correct interrelationships among the 5 clades listed:
Bryozoa:
Brachiopoda:
Linguliformea:
Craniiformea: Rhynchonelliformea:
Please include mollusca. Should be 6 classes total
Evol question:
If the common ancestor of Cnidarians were an open-ocean jellyfish, what would you infer regarding the evolutionary trends in the relative importance of the polyp and medusa stages?
Chapter 32 Solutions
Campbell Biology, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (10th Edition)
Ch. 32.1 - Summarize the main stages of animal development....Ch. 32.1 - WHAT IF? What animal characteristics would be...Ch. 32.2 - Put the following milestones in animal evolution...Ch. 32.2 - Prob. 2CCCh. 32.2 - MAKE CONNECTIONS Evaluate whether the origin of...Ch. 32.3 - Distinguish the terms grade and clade.Ch. 32.3 - Compare three aspects of the early development of...Ch. 32.3 - Prob. 3CCCh. 32.4 - Prob. 1CCCh. 32.4 - WHAT IF? Suppose ctenophores are basal metazoans...
Ch. 32.4 - Prob. 3CCCh. 32 - Prob. 32.1CRCh. 32 - What caused ihe Cambrian exploston? Describe...Ch. 32 - Describe how body plans provide useful Information...Ch. 32 - Prob. 32.4CRCh. 32 - Prob. 1TYUCh. 32 - The distinction between sponges and other animal...Ch. 32 - Prob. 3TYUCh. 32 - Prob. 4TYUCh. 32 - EVOLUTION CONNECTION A professor begins a lecture...Ch. 32 - SCIENTIFIC INQUIRY INTERPRET THE DATA Redraw the...Ch. 32 - WRITE ABOUT A THEME: INTERACTIONS Animal life...Ch. 32 - SYNTHESIZE YOUR KNOWLEDGE This organism is an...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Tree Thinking Review Draw a bracketed phylogenetic tree of the following groups on the next blank page: • Peat Moss • Capybara • Ostrich Fern • Blobfish • White Pine Tree • Protists • Escheria coli • Mexico Whiptail Lizard • Sunflower Sea Star • Bold Jumping Spider • T. Rex • Flatworm • Apple Tree • Archaea • Chanterelle Mushroom Grasshopper Sparrow After you draw your tree, label where the following traits would have evolved. Consider that traits may have evolved more than one time. • Chloroplasts • Seeds • Endosperm • Flowers • Vascular Tissue • Mitochondria Segmentation • Central Nervous System • Notochord • Vertebrae • Nucleus • Membrane Bound Organelles • Peptidoglycans • Cranium Fur • Lactation • Feathers Jaws • Hollow Dorsal Nerve Cordarrow_forwardDifferentiate analogous structures from homologous types. Identify which is which among the shark, pigeon and cat when you transition from each of the classes. For this, create a 4-column table with the following headings: (1) Structure, (2) Specimen a vs b, (3) Specimen b vs c, and (4) Specimen c vs a. For each cell, write either AS for analogous structures, or HS for homologous types. Note (not all structures encountered need to be here).arrow_forwardgive answer asap please Construct a cladogram for: Raccoon, Arctic Fox, Armadillo, Sheep, Snow Leopard, Hippopotamus, Giraffee, Zebra, Ostrich, Rhino, Maned Wolf, Brown Bear, Gray Wolf, Jaguar, Malayan Tiger. (without polytomies) include endoskeleton, hysrostatic and exoskeleton The diagram should look like below:arrow_forward
- Give typed explanation of both otherwise leave itarrow_forwardGymnospermae 100 200 Amphibia 050 100 150 200 Aranea 50 100 150 0 50 100 150 200 250 50 100 150 200 250 50 100 150 200 Clade age (my) Clade age (my) Clade age (my) Clade age (my) Figure 3. The relationship between species richness and clade age in twelve groups. Question 5. In which animal group(s) is there a strong positive relationship between species richness and clade age? Question 6. What is the relationship between species richness and clade age in mammals? Log (richness) Log (richness) Log (richness) Angiospermae 0 100 Actinopterygii ● ● ● T 200 300 400 Squamata 0 0 100 200 2. 0 2 0 300 6 4 2 2 0 10 2 0 Pteridophyta 200 0 100 Mammalia ●00 000000 0 25 50 75 Coleoptera 300 0 2 0 0 100 Aves 0 Chondricthyes 200 300 0 25 50 75 100 Dipteraarrow_forwardWhy are simpler structures considered ancestral when we study phylogeny? * 1 point Complex structures often evolve from simpler ones. Time element is a major consideration. The presence of a character state among some members of a lineage and an outgroup indicates that the character is ancestral. Simpler structures were more likely to be found in fossil records.arrow_forward
- You have now studied three different types of anatomical structures. Homologous structures show individual variations on a common anatomical theme. These are seen in organisms that are closely related. 1. Give an example of a homologous structure from this activity: Analogous structures have very different anatomies but similar functions. These are seen in organismsthat are not necessarily closely related but live in similar environments and have similar adaptations. 2. Give an example of an analogous structure from this activity: Vestigial structures are anatomical remnants that were important in the organism's ancestors but are nolonger used in the same way. 3. Give an example of a vestigial structure from this activity:arrow_forwardL Gymnospermae 100 200 100 200 300 Amphibia 0 50 100 150 200 0 25 50 75 100 Aranea Diptera 50 100 150 50 100 150 200 250 50 100 150 200 250 050 100 150 200 Clade age (my) Clade age (my) Clade age (my) Clade age (my) Figure 3. The relationship between species richness and clade age in twelve groups. Question 8. Suppose species in old clades were more likely to go extinct. How would this change the relationship between clade age and species richness? Log (richness) Log (richness) Log (richness) Angiospermae 0 100 Actinopterygii ● • 0100 200 0 200 ● ● T 300 400 Squamata 0 2. 0 6 0 0 0 300 4 2 0 2 0 4 2- 0 Pteridophyta 200 0 100 Mammalia ● 000 00 0 25 Coleoptera 0 300 50 75 2 2 0 Aves Chondricthyesarrow_forwardGymnospermae 100 200 Amphibia 050 100 150 200 Aranea 50 100 50 100 150 200 150 50 100 150 200 250 50 100 150 200 250 Clade age (my) Clade age (my) Clade age (my) Clade age (my) Figure 3. The relationship between species richness and clade age in twelve groups. Question 7. One difficulty in estimating species richness is that many species have yet to be described. Suppose that the number of undiscovered species varies among taxa and that old clades tend to have more undiscovered species. In which direction would the observed relationship between species diversity and clade age be biased? Log (richness) Log (richness) Log (richness) 0 Angiospermae 0 100 Actinopterygii ● ● 0 0 100 200 ● 400 Squamata ● 200 300 2 0 4 2 0. 0 0 300 6 4 2- 0 0 Pteridophyta 200 0 100 Mammalia ● me com 150 0 25 Coleoptera 0 50 300 75 0 0 2 0 0 0 0 100 Aves Chondricthyes 200 300 0000 50 75 100 25 Dipteraarrow_forward
- Complete table belowarrow_forwardFind the animal on the phylogenetic tree and classify it as either metazoan or eumetazoa, diploblastic or triploblastic?arrow_forwardList one similarity and one difference between the groups listed below. It is not acceptable to use membership (or the lack thereof) in a particular taxon as an answer. If a term appears in parentheses below the pair, both your answers must be related to that term (e.g. if the term says "structure" your answer must relate to anatomy). • Pseudocoelomate animal & coelomate animal Similarity Differencearrow_forward
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Phylogeny and the Tree of Life; Author: Professor Dave Explains;https://www.youtube.com/watch?v=KLMn4XwS8Tw;License: Standard YouTube License, CC-BY