Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Chapter 29, Problem 3VCQ
Figure 29.24 Members of the order Testudines have an anapsid-like skull with one opening. However, molecular studies indicate that turtles descended from a diapsid ancestor. Why might this be the case?
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Mammals belong to a group of amniotes known as synapsids. Three major lineages of mammals had emerged by the early Cretaceous period. In a tabulated form, compare these three lineages to illustrate their diversity in terms of: a. Embryonic developmen, b. How the young are fed and c. Period of gestation
Pharyngeal slits are which of the following?
Question 24 options:
a)
Openings in the pharynx. In aquatic chordates they allow for exit of water that enters the mouth.
b)
Elongations of the posterior portion of the body. Use for locomotion in fish, or balance in some terrestrial vertebrates.
c)
Flexible, rod-shaped structures that grows from mesoderm. Gives support to an animal in embryonic development of chordates or for entire life depending on the species.
d)
Tissues that produces thyroid type hormones.
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Hollow tubes that develops from ectoderm. Develops into the central nervous system.
Amphioxus long has been of interest to zoologists searching for a vertebrate ancestor. Explain why amphioxus captured such interest and how it is different from the hypothesized most recent common ancestor of all vertebrates.
Chapter 29 Solutions
Biology 2e
Ch. 29 - Figure 29.3 Which of the following statements...Ch. 29 - Figure 29.22 Which of the following statements...Ch. 29 - Figure 29.24 Members of the order Testudines have...Ch. 29 - Which of the following is not contained in phylum...Ch. 29 - Which group of invertebrates is most closely...Ch. 29 - Hagfish. lam preys. sharks, and tuna are all...Ch. 29 - Members of Chondrichthyes differ from members of...Ch. 29 - Members of Chondrichfhyes are thought to be...Ch. 29 - A marine biologist catches a species of fish she...Ch. 29 - Which of the following is not true of...
Ch. 29 - Frogs belong to which order? Anura Urodela Caudata...Ch. 29 - During the Mesozoic period, diapsids diverged...Ch. 29 - Squamata includes. crocodiles and alligators...Ch. 29 - Which of the following reptile groups gave rise to...Ch. 29 - A bird or feathered dinosaur is. Neornithes...Ch. 29 - Which of the following feather types helps to...Ch. 29 - Eccrine glands produce sweat lipids scents milkCh. 29 - Monotremes include: kangaroos koalas bandicoots...Ch. 29 - The evolution of which of the following features...Ch. 29 - Which of the following is not an anthropoid?...Ch. 29 - Which of the following is part of a clade believed...Ch. 29 - Which of the following human traits is not a...Ch. 29 - What are the characteristic features of the...Ch. 29 - What is the structural advantage of the notochord...Ch. 29 - What can be inferred about the evolution of the...Ch. 29 - Why did gnathostomes replace most agnathans?Ch. 29 - Explain why frogs are restricted to a moist...Ch. 29 - Describe the differences between the larval and...Ch. 29 - Describe how metamorphosis changes the structures...Ch. 29 - Describe the functions of the three extraembryonic...Ch. 29 - What characteristics differentiate lizards and...Ch. 29 - Based on how reptiles therm oregulate, which...Ch. 29 - Explain why birds are thought to have evolved from...Ch. 29 - Describe three skeletal adaptations that allow for...Ch. 29 - How would the chest structure differ between...Ch. 29 - Describe three unique features of the mammalian...Ch. 29 - Describe three characteristics of the mammalian...Ch. 29 - How did the evolution of jaw musculature allow...Ch. 29 - How did archaic Homo sapiens differ from...Ch. 29 - Why is it so difficult to determine the sequence...
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- Amphioxus long has been of interest to zoologists searching for a vertebrate ancestor. Explain why amphioxus captured such interest and why it no longer is considered to resemble closely the direct ancestor of the vertebrates.arrow_forwardWhich of the following is the correct classification for the following chordate animal: This is a tetrapod vertebrate that may live its live partly in water and partly on land (some species fully aquatic). These animals have a tail and most of them are lungless. They respire through their skin or gills. Question 28 options: a) Class Chondrichthyes b) Monotreme c) Cephalochordata d) Reptiles (non avian) e) Birds f) Urodela / Salamanders g) Anura / Frogs h) Eutharia i) Class Osteichthyes j) Marsupial k) Superclass Agnathaarrow_forwardBased on the phylogenetic tree diagram in Figure 34.2, predict which vertebrate groups should have lungs or lung derivatives. Explain.arrow_forward
- Figure 27.9 Which of the following statements about diploblasts and triploblasts is false? Animals that display radial symmetry are diploblasts. Animals that display bilateral symmetry are triploblasts. The endoderm gives rise to the lining of the digestive tract and the respiratory tract. The mesoderm gives rise to the central nervous system.arrow_forwardWhich of the following does not occur? a. radially symmetrical diploblast b. diploblastic eucoelomate c. protostomic coelomate d. bilaterally symmetrical deuterostomearrow_forwardWhich of the following is the correct classification for this chordate animal: This vertebrate starts its life cycle in the water in a form without legs. the adult form is a tetrapod and lives mostly on land. These animals do not have a tail and they are specialized for movement like jumping to capture prey. Question 26 options: a) Birds b) Cephalochordata c) Monotreme d) Class Chondrichthyes e) Urodela / Salamanders f) Anura / Frogs g) Eutharia h) Reptiles (non avian) i) Marsupial j) Superclass Agnatha k) Class Osteichthyesarrow_forward
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- The phylogeny in this figure shows the evolution of visual opsins in tetrapods. Each colored triangle represents a different opsin. Which of the following accurately describes the opsins in these species? Squamate reptiles Birds Rodents New World Baboons primates Click to view larger image. - Opain loss x Opain loss ▲▲▲▲ Tetrapod ancestor ▲▲▲ Humane +A Opin gain a. The green opsin is a synapomorphy in rodents and New World primates, and the light blue opsin is a symplesiomorphy in baboons and humans. b. The light blue opsin is a synapomorphy in squamate reptiles and birds, and the green opsin is an ancestral trait. OC. The purple opsin is an analogous trait, and the green opsin is a homologous trait. Od. The green opsin is a synapomorphy in baboons and humans, and the light blue opsin is symplesiomorphy in squamate reptiles and birds.arrow_forwardThe ancestors of extant tetrapods first evolved the ability to live out of water over 350 million years ago. Which of the following had to have been true for natural selection to have favored the original evolution of limbs? A) Closely related lineages that remained in the ocean must have gone extinct. There must have been differences in survival and or/reproduction based on size, musculature, bones or other (B functional aspects of early limbs. Large predators must have been a major source of mortality for populations that spent more time in the water and less on land. The ability of some ancestral fish-tetrapod transitional forms to move from one body of water to another during D droughts must have led to decreased mortality. E There must have been less competition for food on land.arrow_forwardWhich of the following is the correct classification for this chordate animal: This vertebrate possesses hair and mammary glands. They are endothermic. This group gives birth to live young at a fetal stage. Most then nurture their young in a pouch. Question 31 options: a) Class Chondrichthyes b) Eutharia c) Cephalochordata d) Birds e) Urodela / Salamanders f) Class Osteichthyes g) Monotreme h) Reptiles (non avian) i) Anura / Frogs j) Superclass Agnatha k) Marsupialarrow_forward
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