BIOLOGY(LL)-W/ACCESS CODE >CUSTOM<
12th Edition
ISBN: 9781264058167
Author: Raven
Publisher: MCG CUSTOM
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Chapter 43.7, Problem 1LO
Summary Introduction
To determine: The way, a compound eye of human, fly, and the eyespot of the ribbon worm could have a common evolutionary origin.
Introduction: The eyes are the sensory organ. The insects are the vertebrates show divergence from a common ancestor. There is large differences in vertebrate's eye and insect eye.
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Regarding the evolution of the mammalian inner ear, the above diagram shows:A) the co-option of jaw bones (colored) for use in hearingB) the loss of jaw bones (colored) and the origin of de-novo hearing bones C) the evolution of synapsids, which have little to do with mammalian evolutionD) the results of a population bottleneck which led to the fixation of odd alleles for ear development
Eyes are often used in arguments for intelligent design because many consider this organ to be too complex to have evolved by chance alone. However, complex lensed eyes evolved independently both within cephalod mollusks and vertebrates including our own ancestor. In the evolution of these structures the corresponding phylogenies revealed that both:
A) were preceded by the evolution of 'simple' light sensing eyes, thus having adaptive intermediate evolutionary steps.
B) lacked intermediate evolutionary steps involving the evolution of 'simple' eyes.
C) had intermediate evolutionary steps, but ultimately the vertebrate eye had a superior 'design' without any kind of blind spot, relative to the simple invertebrate cephalopod eye.
D) were preceded by vestigial non-functional optic structures.
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.
Chapter 43 Solutions
BIOLOGY(LL)-W/ACCESS CODE >CUSTOM<
Ch. 43.1 - Prob. 1LOCh. 43.1 - Prob. 2LOCh. 43.1 - Describe how gated ion channels work.Ch. 43.2 - Prob. 1LOCh. 43.2 - Describe the function of these receptors.Ch. 43.2 - Describe the relationship between thermoreceptors...Ch. 43.3 - Prob. 1LOCh. 43.3 - Prob. 2LOCh. 43.4 - Prob. 1LOCh. 43.4 - Prob. 2LO
Ch. 43.4 - Prob. 3LOCh. 43.5 - Prob. 1LOCh. 43.5 - Prob. 2LOCh. 43.6 - Prob. 1LOCh. 43.6 - Prob. 2LOCh. 43.6 - Prob. 3LOCh. 43.7 - Prob. 1LOCh. 43 - Prob. 1DACh. 43 - Prob. 1IQCh. 43 - Prob. 2IQCh. 43 - Prob. 3IQCh. 43 - Which of these is NOT a method by which sensory...Ch. 43 - Which of the following correctly lists the steps...Ch. 43 - All sensory receptors are able to initiate nerve...Ch. 43 - In the fairy tale, Sleeping Beauty fell asleep...Ch. 43 - The ear detects sound by the movement of a. the...Ch. 43 - Hair cells in the vestibular apparatus of...Ch. 43 - ________ is the photopigment contained within both...Ch. 43 - Which of the following is NOT a method used by...Ch. 43 - Prob. 9UCh. 43 - Prob. 10UCh. 43 - What do the sensory systems of annelids, mollusks,...Ch. 43 - Animals can more easily tell the direction of a...Ch. 43 - Some birds have broader color perception than...Ch. 43 - The ability of some insects, birds, and lizards to...Ch. 43 - Prob. 1SCh. 43 - The function of the vertebrate eye is unusual...Ch. 43 - How would the otolith organs of an astronaut...Ch. 43 - Prob. 4S
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- How can the Darwinian concept of descent with modification explain the evolution of such complex structuresas the vertebrate eye?arrow_forwardA) Would you conclude that the other primates are tasters or non-tasters? Why is this important? What role might the other differences between the species play in an evolutionary sense? Think of the role environment might play as wellarrow_forwardThree species of orchid bees are in the genus Euglossa and one is in the genus Eulaema. You don’t know which Euglossa are most related. Draw a phylogenetic tree of these species, including the outgroup Apis (genus of honey bees).arrow_forward
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The Sensorimotor System and Human Reflexes; Author: Professor Dave Explains;https://www.youtube.com/watch?v=M0PEXquyhA4;License: Standard youtube license