WHAT IS LIFE? A GUIDE TO BIO 3E+LAUNCHPA
3rd Edition
ISBN: 9781319103316
Author: PHELAN
Publisher: Macmillan Higher Education
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Chapter 11, Problem 11MC
Summary Introduction
Introduction:
The features that an animal must possess at some point in its life to be classified as a chordate are - a notochord, a dorsal nerve cord, pharyngeal slits, an endostyle, and a post-anal tail.
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Which of the following is the correct classification for the following chordate animal:
This is a vertebrate that does not have a jaw. An example is the Hagfish which has a cartilaginous skull and skeleton.
Question 30 options:
a)
Urodela / Salamanders
b)
Eutharia
c)
Superclass Agnatha
d)
Birds
e)
Anura / Frogs
f)
Monotreme
g)
Class Osteichthyes
h)
Class Chondrichthyes
i)
Reptiles (non avian)
j)
Marsupial
k)
Cephalochordata
Phylum Chordata: (Made up of 3 subphyla, two of which lack a true backbone)
State the four characteristics that all chordates have in common.
1.
a)
b)
c)
d)
2. State the two subphyla, within this phylum, that lack a true backbone.
a) State the animals that fall within each subphylum.
b) Briefly describe what animals in each subphylum look like.
What is the advantage to the segmentation that is exemplified in the Phylum Annelida? Check all that apply.
A)The annelid may still survive if one segment is damaged.
B)Segments can be specialized.
C)The importance of segmentation is unclear.
D)Vital structures are repeated in each segment.
E)Locomotion is more efficient.
Chapter 11 Solutions
WHAT IS LIFE? A GUIDE TO BIO 3E+LAUNCHPA
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- Which 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_forwardWhich of the following are tetrapods? Group of answer choices A, B, C, and D B, C, D, and E D) mammals E) birds C) reptiles B) amphibians B, C, and D A) fisharrow_forward1. Classify starfish, earthworm and sponges based on the following characteristics: a) body symmetry b) number of germ layers during embryonic development c) body plan if triploblastic (coelomate, acoelomate, pseudocoelomate) d) Mechanism of coelom formation, if coelomate e) the origin of mouth? f) symmetry of cleavage? g) cleavage pattern, determinate or indeterminate? h) protostome or deuterostome? 2. Support your answers on number 1.arrow_forward
- Which of the following is the correct classification for the following chordate animal: These animals are chordates but do not have a backbone or cranium. They have all five features of chordates into adulthood. The notochord extends into its head. Question 27 options: a) Birds b) Anura / Frogs c) Urodela / Salamanders d) Superclass Agnatha e) Monotreme f) Eutharia g) Reptiles (non avian) h) Class Chondrichthyes i) Cephalochordata j) Class Osteichthyes k) Marsupialarrow_forwardWhich of the following is supported by molecular phylogenetic studies? a.) Lobe-finned fish are more closely related to humans than to other fish. b.) Lobe-finned fish are more closely related to other fish than to humans. c.) Lobe-finned fish are more closely related to other fish than to humans. d.) All of the answers are correct e.) Lobe-finned fish are tetrapods.arrow_forwardThe only living group of mammals that lay eggs rather than give birth to live young are called: A) marsupials B) monotremes C) placentals D) eutheriansarrow_forward
- Archaeopteryx is a significant fossil find because it gave hints to the evolution of the following organisms: a) Lobe-finned fish b) Amphibians c) Reptiles d) Birdsarrow_forwardMolecular techniques like DNA sequencing led to a restructuring of morphologically-based taxonomy and phylogeny such that A)annelids and arthropods were designated as closely related. B)echinoderms and chordates were placed in entirely different clades. C)Bilateria was designated as a monophyletic group. D)Ecdysozoa and Lophotrochozoa were designated as clades. E)rotifers and nematodes were designated as closely related.arrow_forward4. Holobranchs are associated with the respiratory systems of A) Aves B) Amphibians C)Hagfish D) None of the choices is correct E) Osteichthyesarrow_forward
- 8arrow_forward98. Which of the following is/are a primitive characteristic associated with members of the phylogenetic order Primates? a) post-orbital bar b) binocular vision c) retention of clavicle d) nails instead of claws e) none of the abovearrow_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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