CUSTOM BIOLOGY
19th Edition
ISBN: 9781323945490
Author: Urry
Publisher: Pearson Custom Publishing
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Chapter 50, Problem 10TYU
SYNTHESIZE YOUR KNOWLEDGE
Bloodhounds, which are adept at following a scent trail even days old, have no more olfactory receptor genes than other dogs. Predict how the sensory and nervous systems of bloodhounds differ from those of other dogs in ways that contribute to their tracking ability.
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The following passage comes from an abstract in a study about analyzing hearing
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"A clinical and genetic study on 25 twin pairs with at least one deaf member was
performed. Concordance rate of hearing loss was 0.88 in MZ and 0.50 in DZ pairs"
(MZ =monozygotic or identical twins. DZ -Dizygotic or fraternal twins). From this
data alone, what can you conclude about the roles of environment and genetics in
hearing loss? Explain how you reached your conclusion.
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You discover a new species of frog in extremely dark parts of the Amazon rain forest. You hypothesize that this frog detects light using a mechanism similar to mammals. If you are correct, which types of drugs would interfere with vision in this frog?
Bloodhounds, which are adept at following a scent trail evendays old, have no more olfactory receptor genes than other dogs.Predict how the sensory and nervous systems of bloodhoundsdiffer from those of other dogs in ways that contribute to theirtracking ability
Chapter 50 Solutions
CUSTOM BIOLOGY
Ch. 50.1 - Prob. 1CCCh. 50.1 - Prob. 2CCCh. 50.1 - Prob. 3CCCh. 50.2 - How are otoliths adaptive for burrowing mammals,...Ch. 50.2 - Prob. 2CCCh. 50.2 - Prob. 3CCCh. 50.2 - Prob. 4CCCh. 50.3 - Contrast the light-detecting organs of planarians...Ch. 50.3 - Prob. 2CCCh. 50.3 - Prob. 3CC
Ch. 50.3 - Prob. 4CCCh. 50.4 - Explain why some taste receptor cells arid all...Ch. 50.4 - Prob. 2CCCh. 50.4 - Prob. 3CCCh. 50.5 - Contrast the role of Ca2+ in the contraction of a...Ch. 50.5 - Prob. 2CCCh. 50.5 - Prob. 3CCCh. 50.6 - Contrast swimming and flying in terms of the main...Ch. 50.6 - MAKE CONNECTIONS. Peristalsis contributes to the...Ch. 50.6 - WHAT IF? When using your arms to lower yourself...Ch. 50 - Sensory receptors transduce stimulus energy and...Ch. 50 - How are music volume and pitch encoded in signals...Ch. 50 - Prob. 50.3CRCh. 50 - Prob. 50.4CRCh. 50 - What are two major functions of ATP hydrolysis in...Ch. 50 - Which of the following sensory receptors is...Ch. 50 - The middle ear converts (A) air pressure waves to...Ch. 50 - Prob. 2TYUCh. 50 - Prob. 3TYUCh. 50 - Prob. 4TYUCh. 50 - Although some sharks close their eyes just before...Ch. 50 - Prob. 6TYUCh. 50 - EVOLUTION CONNECTION In general, locomotion on...Ch. 50 - Prob. 8TYUCh. 50 - WRITE ABOUT A THEME: ORGANIZATION In a short essay...Ch. 50 - SYNTHESIZE YOUR KNOWLEDGE Bloodhounds, which are...Ch. 50 - If an egg rolls out of the nest, a mother greylag...
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- Include a 5-10 sentence explanation of how the ear senses sound and relays that data to the brain to interpret auditory information. Some pieces to consider: What path does the sound travel through the ear? What structures do the waves interact with? How does the signal travel to the brain? Where in the brain is the data processed? How does this sense change with age? What could cause deafness in humans (there are at least two major ways this can happen)?arrow_forwardBoth the gustatory and olfactory system allow for the perception and identification of different chemical cues from the environment. Summarize the difference between these two systems with respect to coding. In other words, how does the neuronal activity of these systems provide a code that allows distinct chemicals to be represented?arrow_forward(Bonus) Deafness and hearing loss are a widespread issue. According to WHO, currently more than 1.5 billion people (nearly 20% of the global population) live with hearing loss. From what you learned about our auditory system, briefly explain what would happen to hearing in each of the following scenarios. (a) the tectorial membrane can't hold its position and is pushing onto the auditory hair cells constantly. (b) the auditory hair cells near the base of the cochlea are damaged and dead. (c) the endolymph potassium concentration is lower than normal. (d) the perilymph potassium concentration is lower than normal.arrow_forward
- Help me pleasearrow_forwardScent-free zones are important recommendations because some people are very sensitive to odorants. What is one reason that someone might be over-sensitive to odorants? higher threshold to activate the Golf cascade greater hyperpolarized resting potential in olfactory neurons reduced sensitivity of the Golf response lower threshold to activate the Golf cascadearrow_forwardOn January 12, 2010 a magnitude 7.0 earthquake rocked Haiti. One million people were left homeless. In addition to the throngs of people rushed to help the island nation, battalions of rescue dogs were dispatched from around the world. The sniffer dogs in these teams rely not only on their amazing Canine olfactory abilities but also on the months and years of laborious training they received geared towards locating survivors trapped under rubbles. Indeed rescue dogs are trained animals that have passed a set of strict criteria to earn a place on the special teams. The dogs must demonstrate mastery of a set of difficult skills, including walking off leash with a trainer on a crowded city street, without getting distracted and performing search and rescue tasks without food rewards. Further, these hardworking canines must be recertified every two year to ensure that their skills remain at peak level. Truly, rescue dogs are well trained through the principles that psychologists…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