Campbell Biology: Custom Edition
18th Edition
ISBN: 9781323717271
Author: Urry, Cain, Wasserman, Minorsky, Reece
Publisher: PEARSON C
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Textbook Question
Chapter 28, Problem 28.2CR
What evidence indicates that the excavates form a clade?
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Chapter 28 Solutions
Campbell Biology: Custom Edition
Ch. 28.1 - Cite at least four examples of structural and...Ch. 28.1 - Summarize the role of endosymbiosis in eukaryotic...Ch. 28.1 - Prob. 3CCCh. 28.2 - Why do some biologists describe the mitochondria...Ch. 28.2 - WHAT IF? DNA sequence data for a diplomonad, a...Ch. 28.3 - Explain why forams have such a well-preserved...Ch. 28.3 - WHAT IF? Would you expect the plastid DNA of...Ch. 28.3 - Prob. 3CCCh. 28.3 - Prob. 4CCCh. 28.4 - Contrast red algae and brown algae.
Ch. 28.4 - Why is it accurate to say that Ulva is truly...Ch. 28.4 - Prob. 3CCCh. 28.5 - Contrast the pseudopodia of amoebozoans and...Ch. 28.5 - Prob. 2CCCh. 28.5 - Prob. 3CCCh. 28.6 - Justify the claim that photosynthetic protists are...Ch. 28.6 - Prob. 2CCCh. 28.6 - WHAT IF? High water temperatures and pollution...Ch. 28.6 - MAKE CONNECTIONS The bacterium Wolbachia is a...Ch. 28 - Describe similarities and differences between...Ch. 28 - What evidence indicates that the excavates form a...Ch. 28 - Prob. 28.3CRCh. 28 - On what basis do systematists place plants in the...Ch. 28 - Describe a key feature for each of the main...Ch. 28 - Prob. 28.6CRCh. 28 - Plastids that are Surrounded by more than two...Ch. 28 - Biologists think that endosymbiosis gave rise to...Ch. 28 - Prob. 3TYUCh. 28 - According to the phylogeny presented in this...Ch. 28 - In a life cycle with alternation of generations,...Ch. 28 - Based on the phylogenetic tree in Figure 28.2,...Ch. 28 - Prob. 7TYUCh. 28 - SCIENTIFIC INQUIRY Applying the If then logic of...Ch. 28 - WRITE ABOUT A THEME: INTERACTIONS Organisms...Ch. 28 - SYNTHESIZE YOUR KNOWLEDGE This micrograph show's a...
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- How has the abundance and diversity of Bivalves clade changed over time? –How did the synapomorphies of the clade allow the group to diversify and expand? Has the clade been affected by mass extinction events, either positively or negatively? If so, what caused the extinction event? Is the clade now at its most diverse and abundant? Or if that was in the past, when? If still extant, are species in the clade thriving or threatened with extinction?arrow_forwardFor each of the following pairs of terms, provide one similarity and one difference: a) Planula and trochophore [2] b) Epidermis and neodermis [2] c) Mandibles and chelicerae [2] d) Dimorphism and metamorphosis [2] e) Spicules and dermal ossicles [2] f) Coelom and pseudocoelom [2]arrow_forward1. Sycon or Scypha - give its scientific and common name, classify up to order level and list the characters justifying the classification - describe its habit and habitat, distinguish a multicellular animal from an unicellular animalcule 2. Hyalonema - give its scientific and common name, classify up to order level and list the characters justifying the classification - describe its habit and habitat, distinguish a multicellular animal from an unicellular animalculearrow_forward
- Why is Ammocoete Larvae important in the story of evolution? What does its anatomy shed light on?arrow_forwardPimpla rufipesSpecies A: possess a calcium carbonate shell and is found in marine environmentsSpecies B: Segmented worm, marine and possess bristles known as ‘setae’Species C: Bioluminescent, possess special cells known as colloblasts which are attached to tentaclesSpecies D: Parasitic roundworm found in the intestines of mammals; lacks segments, molts a cuticle. (photo of the phylogenetic tree here) B.1 Does P. rufipes engage in incomplete or catastrophic metamorphosis? _________________ B.2. Explain why you chose your answer for B.1. __________________________________________________________________________________ B.3. List ONE (1) advantage of the developmental strategy you chose above?arrow_forwardWhich of the following statements regarding the diversification of animals is supported by the current available evidence? a) most animals belong to the clade Bilateria b) sponges are a paraphyletic group of organisms c) ctenophores are basal metazoans d) animals descended from multiple ancestorsarrow_forward
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