Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 48.8, Problem 1SB
Summary Introduction
To review:
The mechanism by which thermoreceptors and negative feedback mechanism regulate temperature in the endotherms.
Introduction:
Endotherms are warm blooded animals (birds and mammals), which obtain energy from the internal
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Chapter 48 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 48.1 - Define the terms osmosis, osmolarity, hypoosmotic,...Ch. 48.2 - How are protonephridia, metanephridia, and...Ch. 48.3 - Prob. 1SBCh. 48.3 - Prob. 2SBCh. 48.4 - Prob. 1SBCh. 48.5 - Prob. 1SBCh. 48.5 - Reptiles and birds excrete nitrogenous wastes in...Ch. 48.6 - Distinguish between ectothermy and endothermy....Ch. 48.7 - Prob. 1SBCh. 48.7 - Prob. 2SB
Ch. 48.8 - Prob. 1SBCh. 48 - Which of the following statements about...Ch. 48 - Prob. 2TYKCh. 48 - Prob. 3TYKCh. 48 - Prob. 4TYKCh. 48 - Prob. 5TYKCh. 48 - Which of the following correctly describes a part...Ch. 48 - Which of the following is an example of...Ch. 48 - Prob. 8TYKCh. 48 - Prob. 9TYKCh. 48 - Prob. 10TYKCh. 48 - Prob. 11TYKCh. 48 - Discuss Concepts As a person ages, nephron tubules...Ch. 48 - Prob. 13TYKCh. 48 - Prob. 14TYKCh. 48 - Prob. 15TYKCh. 48 - Prob. 16TYKCh. 48 - Prob. 1ITDCh. 48 - Prob. 2ITDCh. 48 - Prob. 3ITD
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- Describe how hypothalamic center integrates thermal information and directs changes in efferent activity to balance body’s temperaturearrow_forwardCompare and contrast cold habituation, metabolic acclimation, and insulative acclimationarrow_forwardWhen the mammalian brain compares the actual temperature of the body to the preferred temperature of the body, which general component is being used? Question 24 options: Sensor. Intergrator. Effector. Motor.arrow_forward
- Help me pleasearrow_forwardUsing the rod photoreceptor example, explain the mechanism by which the negative feedback loops regulate the signal transduction. Using the rod photoreceptor example, explain the mechanism by which the negative feedback loops regulate the signal transduction.arrow_forwardExplain the effect on sun-compass orientation of a circadian-clock shift to a light schedule that is 4 h later (e.g., from lights-onat 6:00 am to lights-on at 10:00 am).arrow_forward
- In describing a positive feedback loop, which of the following would be true? a) the sensor and control center are always the same b) the effector signals the control center to shut off the initial stimulus c) the effect shuts off the initial stimulus d) the effect amplifies the initial stimuarrow_forwardA behavioral physiologist is studying the homeostatic control of blood pH. In a trial, a lizard runs on a treadmill for a set amount of time and the blood pH is measured. The blood pH drops as carbon dioxide is released into the bloodstream. Which component of the homeostatic feedback system is responsible for determining if the blood pH is far enough from normal that a response is necessary? Sensor Effector Assimilator Integratorarrow_forwardSelect the statements that correctly describe positive feedback pathways. 1. A sensor/receptor is required to monitor and limit levels. 2. A sensor/receptor is unnecessary to monitor and limit levels. 3. Feedback prevents homeostasis. 4. Feedback contributes to homeostasis. 5. Feedback stimulates the effector to continue to do the same thing. 6. Feedback stops the effector from doing one thing and stimulates it to do the opposite. 7. When the target level for a hormone is reached, feedback results in a reduction of that hormone being released. 8. When a target level for a hormone is reached, feedback results in an increase of that hormone being released. Record your answers in ascending (lowest to highest) order.arrow_forward
- Select the statements that correctly describe negative feedback pathways. 1. A sensor/receptor is required to monitor and limit levels. 2. A sensor/receptor is unnecessary to monitor and limit levels. 3. Feedback contributes to homeostasis. 4. Feedback prevents homeostasis. 5. Feedback stimulates the effector to continue to do the same thing. 6. Feedback stops the effector from doing one thing and stimulates it to do the opposite. 7. When the target level for a hormone is reached, feedback results in an increase of that hormone being released. 8. When the target level for a hormone is reached, feedback results in a reduction of that hormone being released. Record your answers in ascending (lowest to highest) order.arrow_forwardOrganismal homeostasis depends upon the presence of control systems. Give a physiological example of a negative feedback control system its positive feedback. Clearly describe the role(s) that each of the following elements plays in all control systems: such as controller, effector and receptor.arrow_forwardIn a negative feedback loop, the effector moves the system in the direction as the stimulus.arrow_forward
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