Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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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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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?
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What path does the light travel?
What structures and pigments does it interact with?
How does the signal travel to the brain?
Where in the brain is the data processed?
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Chapter 50 Solutions
Campbell 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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- 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 abilityarrow_forwardResearch suggests that newborns are able to discriminate their own language from a foreign language, and their mother's voice from a stranger's voice. In contrast, their visual abilities are much less developed at birth, and develop rapidly over the first few months of life. One explanation for this is: A) Fetuses get equivalent auditory and visual experience before birth, but before they are born they are only able to learn from auditory experience B) Fetuses do not experience sensory information before birth (i.e., they cannot hear, see, smell, etc.) but language develops faster than vision because it is more evolutionarily important C) Fetuses get equivalent auditory and visual experience before birth, but vision requires additional postnatal triggers to be fully activated D) Fetuses can hear many types of sounds prenatally but have limited visual experience until after birth.arrow_forwardSCIENCE, TECHNOLOGY, AND SOCIETY Cochlear implants bring hearing to many children who are born deaf. The prognosis is best when the device is implanted before the child is three years old (during the early years when language is developed). Many individuals in the deaf community (which consists of individuals born deaf or who are affected by deafness) who communicate with sign language oppose cochlear implants. They do not view the inability to hear as a disability. This perspective raises ethical questions for some families with children who are deaf. Argue for and against cochlear implants for very young children.arrow_forward
- 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
- Ture or False:(T/F) A bee would detect the odor of the flowers using trichoid sensilla located on the antennae and the olfactory information would be processed in the glomeruli of the deuterocerbrum and incorporated into olfactory learning in the corpora pedunculata of the protocerebrum.(T/F) A bee would monitor and control flight speed using interommatidial hairs and the optomotor response.(T/F) Stresses and strains on the exoskeleton during flight would be monitored by basiconic and coeloconic sensilla located in the wing hinge.arrow_forwardMany odorant molecules are highly hydrophobic and concentrate within the olfactory epithelium. They would give a persistent signal independent of their concentration in the environment if they were not rapidly modified. Propose a mechanism for converting hydrophobic odorants into watersoluble derivatives that can be rapidly eliminated.arrow_forwardDistinguish between static and dynamic equilibrium. The sense of equilibrium (balance) is really two senses— static equilibrium and dynamic equilibrium—that come from different sensory organs. The organs of static equilibrium (stat′ik e″kwı˘-lib′re-um) sense the position of the head, maintaining balance, stability and posture when the head and body are still. When the head and body suddenly move or rotate, the organs of dynamic equilibrium (di-nam′ik e″kwı˘- lib′re-um) detect such motion and aid in maintaining balance.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