Biology
11th Edition
ISBN: 9781259188138
Author: Peter H Raven, George B Johnson Professor, Kenneth A. Mason Dr. Ph.D., Jonathan Losos Dr., Susan Singer
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 35, Problem 3A
The fact that monotremes lay eggs
a. indicates that they are more closely related to some reptiles than they are to some mammals.
b. is a plesiomorphic trait.
c. demonstrates that the amniotic egg evolved multiple times.
d. is a result of ectothermy.
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The coelom
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Segmentation, first seen in annelids, allows evolutionary advantages bya. allowing more fluid movement for less energy expense.b. specialization of segments to carry out different functions.c. allowing coelom development.d. concentrating sensory and nervous tissues and organs in the direction of motion.
The function of the amphibian larval stage is to allowa. extended development of the muscular-skeletal system.b. food gathering over an extended period.c. escape from predation.d. prevention of metamorphosis.
Chapter 35 Solutions
Biology
Ch. 35 - Which of the following structures is not a...Ch. 35 - Which of the following statements regarding all...Ch. 35 - In the figure, item A is the ______ and item B is...Ch. 35 - Prob. 4UCh. 35 - The ____ of the bony fish evolved to counter the...Ch. 35 - Why was the evolution of the pulmonary veins...Ch. 35 - Which of the following groups lacks a...Ch. 35 - All of the following are characteristics of...Ch. 35 - Which of the following evolutionary adaptations...Ch. 35 - The reason that birds and crocodilians both build...
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- A member of the protostome group of animals a. has no symmetry. b. has an anus derived from the blastopore. c. has a mouth derived from the blastopore. d. has a mouth derived from the primitive groove.arrow_forwardWhich of the following statements is correct for all amniotes? A. They have internal fertilization, three embryonic membraes, are independent of water for reprodction B. They have external fertilization if they live in water, have alantoic membranes to carry oxygenated blood to the embryo, and lack a shell on their eggs. C. They lay eggs covered with a shell, are viviporous and have a marsupium D. They have an embryonic chorionic membrane that becomes part of the placenta, has cells with Golgi bodies,and a yolk sac E. They have three embryonic membranes, have notochords, and are ovoviviparous.arrow_forwardWhich of the following is a defining trait found in chordate embryos? a. limb buds b. a coelom c. a pseudocoelom d. gill slits e. a larval stagearrow_forward
- Which of the following features does not distinguish humans as a member of phylum Chordata? a. Human embryos undergo indeterminate cleavage. b. A spinal cord runs along an adult human’s dorsal side. c. Human embryos exhibit pharyngeal arches and gill slits. d. The human coccyx forms from an embryonic tail.arrow_forwardThe epitheliomuscular cells found in cnidarians anticipate the muscular system of more complex animals. The absence of muscle tissue in cnidarians primarily reflects... A. The fact that cnidarians are basal metazoans, having specialised cells but lacking tissues B. The presence of only two germ layers, ectoderm and endoderm, in cnidarian embryos C. The fact that cnidarians lack a nervous system D. The sessile lifestyle observed in all cnidarians E. All of the above explain the absence of muscle tissue in cnidariansarrow_forwardYou find a flatworm during a field trip and discover that the embryos undergo spiral cleavage. What also must be true of this animal? (can be more than one anwser) E. regulative development B. mosaic development C. it is acoelomate D. All of these A. bilateral symmetryarrow_forward
- Which of the following applies to a squid? a. Cephalization c. Complete digestive tract b. True coelom d. All of these are correct.arrow_forwardYou read a research article presentsing new phylogenetic data demonstrating that species that contain a pseudocoelom are not closely related to one another. This suggests that: A. evolution of the pseudocoelom occurred more than once. B. the pseudocoelom evolved before the coelom. C. pseudocoelomates are more closely related to acoelomates than one another. D. pseudocoelomates are more closely related to coelomates than one another.arrow_forwardCharacteristics that evolved in birds to allow for flight includea. reptilian-like scales on the legs.b. a hard-shelled amniotic egg.c. internal fertilization.d. thin, hollow bones in the skeleton.arrow_forward
- A strepsirrhine has a A. Snout, downward-facing nostrils, and longer forelimbs than hind limbs B. Wet nose, a snout, a tooth comb, and a grooming claw C. Wet nose, a snout, downward-facing nostrils, and longer hind limbs than forelimbs D. Tooth comb, a growing claw, and a dry nosearrow_forwardWhich statement is true of Spemann’s organizer?a. It is unique to amphibian embryos.b. It arises early in cleavage-stage embryos.c. It secretes morphogens, including the protein called noggin.d. It is found in the dorsal lip region of early gastrula-stageembryos.e. Both c and d are true of Spemann’s organizer.arrow_forwardEach of the following is a critical difference between protostomes and deuterostomes except A. deuterostomes have bilateral symmetry B. the blastopore becomes the anus in deuterostomes C. the blastopore becomes the mouth in protostomes D. protostomes have radial symmetryarrow_forward
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