CONNECT FOR BIOLOGY >IC<
12th Edition
ISBN: 9781259693397
Author: Mader
Publisher: MCG CUSTOM
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Textbook Question
Chapter 28, Problem 2A
The phylogenetic tree of animals shows that
a. rotifers are closely related to
b. both molluscs and annelids are protostomes.
c. some animals have radial symmetry.
d. sponges were the first to evolve from an ancestral protist.
e. All of these are correct.
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Students have asked these similar questions
Which of the following statements is BEST supported by the phylogenetic tree?
A
The development of a bony skeleton was a significant evolutionary step for ocean-dwelling animals.
B
Most warm-blooded animals evolved to have hair, while cold-blooded animals did not.
C
Most land animals require a vertebral column, while ocean animals do not.
D
The evolution of the amniotic egg was specific to ocean-dwelling animals.
If you were to build a phylogenetic tree of living animals, which of the following derived characters would appear first?
A.
deuterostome development
B.
true tissues
C.
protostome development
D.
bilateral symmetry
Which 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 ancestors
Chapter 28 Solutions
CONNECT FOR BIOLOGY >IC<
Ch. 28.1 - Prob. 1CYPCh. 28.1 - Explain the colonial flagellate hypothesis about...Ch. 28.1 - Prob. 3CYPCh. 28.1 - Prob. 4CYPCh. 28.2 - 1. List three ways in which cnidarians are more...Ch. 28.2 - Prob. 2CYPCh. 28.2 - Prob. 3CYPCh. 28.2 - Prob. 4CYPCh. 28.3 - Prob. 1CYPCh. 28.3 - Prob. 2CYP
Ch. 28.3 - Prob. 3CYPCh. 28.3 - Prob. 4CYPCh. 28.4 - Prob. 1CYPCh. 28.4 - List two ways that crustaceans are adapted to an...Ch. 28.4 - Prob. 3CYPCh. 28.5 - 1. Explain why echinoderms and chordates are now...Ch. 28.5 - Prob. 2CYPCh. 28.5 - Prob. 3CYPCh. 28.5 - Prob. 4CYPCh. 28 - Prob. 1BS.1QCCh. 28 - Prob. 1BS.2QCCh. 28 - Prob. 1BS.3QCCh. 28 - Prob. 1E.1QCCh. 28 - Prob. 1E.2QCCh. 28 - Prob. 1E.3QCCh. 28 - Prob. 1ACh. 28 - The phylogenetic tree of animals shows that a....Ch. 28 - Prob. 3ACh. 28 - Prob. 4ACh. 28 - Prob. 5ACh. 28 - Prob. 6ACh. 28 - Prob. 7ACh. 28 - Prob. 8ACh. 28 - Prob. 9ACh. 28 - Prob. 10ACh. 28 - Prob. 11ACh. 28 - Prob. 12ACh. 28 - Prob. 13ACh. 28 - Prob. 14ACh. 28 - Prob. 15ACh. 28 - Prob. 1TSCh. 28 - Cnidarians such as Hydra have only one opening....Ch. 28 - Prob. 3TSCh. 28 - Prob. 4TS
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- Which of the following statements is NOT true regarding protostome diversity? A. Of the 30 animal phyla, more than 2/3 (22 phyla) are protostomes. B. There are more mollusk species than Priapula. C. There are more lophotrochozoans than ecdysozoans. D. A major feature distinguishing different developmental characteristics.arrow_forwardWhat is true about organisms that are a part of the same clade? a. They all share the same basic characteristics. b. They evolved from a shared ancestor. c. They all are on the same tree. d. They have identical phylogenies.arrow_forwardWhat type of data is primarily used to determine the existence and appearance of early animal species? a. molecular data b. fossil data c. morphological data d. embryological development dataarrow_forward
- What do the multiple branching points at the root of the eukaryotic phylogenetic tree indicate about the evolution of eukaryotes? A. that unikonts are derived from the SAR clade B. that Archaeplastids were the first eukaryotes C. that fungi are more closely related to plants than animals D. that eukaryotes are all descended from a common ancestorarrow_forwardExamine the image of the relatedness of vertebrates represented in this phylogenetic tree. Which statements are correctly inferred from this tree? Select all that apply. A) The mammals are the outgroup in this tree. B) Birds and dinosaurs share a recent common ancestor. C) Mammals and birds are more closely related than any other species. D) Turtles are equally as diverged from lizards and snakes as they are from crocodiles. E) Lizards and snakes are more recently diverged from each other than they are from crocodiles.arrow_forward______ is a way of reconstructing evolutionary history based on derived characters. a. Cladistics c. Convergent evolution b. Linnaean taxonomy d. Divergent evolutionarrow_forward
- One hypothesis for the Cambrian explosion was an increase in predator-prey relationships. It is thought that the resulting co-evolution of predator and prey may have been a factor in the rapid speciation of animals seen during this time. What findings in the fossil record would most support this? Group of answer choices a. increased incidence of larger-bodied animals b. increased incidence of sessile animals c. decreased incidence of animals with bilateral symmetry d. increased incidence of animals with radial symmetry e. increased incidence of shells, bony plates, spines, and/or clawsarrow_forwardDiscuss the idea that every evolutionary adaptation has both advantages and disadvantages, using each of the following as an example: (a) cephalization,(b) the arthropod exoskeleton, and (c) segmentation with specialization.arrow_forwardOrnithopods and ceratopsians are characterized by numerous instances of convergence. Which of the following is NOT an example of convergence in (at least some members of) these groups? Select one: a. Some members of both groups evolved dental batteries to help them grind food more effectively. b. Both had bipedal ancestors, but independently became large and (at least partially) quadrupedal. c. Both groups independently lost their lower front teeth. d. Both evolved elaborate ornamentation (crests, frills, etc.) on their heads.arrow_forward
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