BSC 1005 PKG-W/MOD. MAST. ACCESS >CI<
17th Edition
ISBN: 9781269683364
Author: Reece
Publisher: Pearson Custom Publishing
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Textbook Question
Chapter 20, Problem 4TYK
Negative-feedback mechanisms are
a. most often involved in maintaining homeostasis.
b. analogous to a furnace that produces heat.
c. found only in birds and mammals.
d. all of the above
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With negative feedback, detection of a change brings about a response that_____ the change. a. reverses c. has no effect on b. accelerates d. mimics
Which of the following is an example of a negative feedback loop? a) shivering in response to a cold b)platelets responding to a cut c) childbirth d) lactation
Which of the following is true of positive feedback?
a. The change is opposite that of negative feedback
b. The effector turns off the response
c. The change is amplified
What is the difference between the answers a & b?
Chapter 20 Solutions
BSC 1005 PKG-W/MOD. MAST. ACCESS >CI<
Ch. 20 - Connecting the Concepts 1. There are several key...Ch. 20 - True or false? Each cell in the human body is...Ch. 20 - Prob. 3TYKCh. 20 - Negative-feedback mechanisms are a. most often...Ch. 20 - Briefly explain how the structure of each of these...Ch. 20 - Describe ways in which the bodies of complex...Ch. 20 - Which of the following best illustrates...Ch. 20 - Prob. 8TYKCh. 20 - Prob. 9TYKCh. 20 - Prob. 10TYK
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- You are studying a large tropical reptile that has a high and relatively stable body temperature. How do you determine whether this animal is an endotherm or an ectotherm? (A) You know from its high and stable body temperature that it must be an endotherm. (B) You subject this reptile to various temperatures in the lab and find that its body temperature and metabolic rate change with the ambient temperature. You conclude that it is an ectotherm. (C) You note that its environment has a high and stable temperature. Because its body temperature matches the environmental temperature, you conclude that it is an ectotherm. (D) You measure the metabolic rate of the reptile, and because it is higher than that of a related species that lives in temperate forests, you conclude that this reptile is an endotherm and its relative is an ectotherm.arrow_forwardIn a negative feedback mechanism,a. the output cancels the input.b. there is a fluctuation above and below the average.c. there is self-regulation.d. a regulatory center communicates with other body parts.e. All of these are correct.arrow_forwardWhich of these is a result of homeostasis?a. Muscular tissue is specialized to contract.b. Normal body temperature is always about 37°C.c. There are more red blood cells than white blood cells.d. Receptors in the eyes detect light.arrow_forward
- Which of the following statements regarding negative feedback is false?a. It helps regulate variables such as body temperature and bloodpressure.b. It is the mechanism by which birth occurs in mammals.c. It is a major feature of homeostatic control systems.d. It prevents homeostatic responses from overcompensating.e. It may occur at the organ, cellular, or molecular level.arrow_forwardWhich of the following are examples of maintaining homeostasis (more than one answer may be correct)? a. You develop diarrhea in response to contracting norovirus b. Sweating due to eating spicy food c. Kidneys removing excess fluid through urine d. Insulin is released in response to high blood sugar, causing cells to use more sugararrow_forwardWhich type, or form, of animal could function without a circulatory system? A. a small, thin sedentary aquatic animal B. an active terrestrial animal C. a large, mobile aquatic animal D. a large, slow terrestrial animal E. a large, mobile terrestrial animalarrow_forward
- A female rat gives birth 28 days after breeding. The young ones grow into adults in 5 to 7 weeks. Which characteristics of life are described here? a. Cell organization and Homeostasis b. Growth and reproduction c. Development and response to environment d. Homeostasis and use of energy e. Physical and chemical change.arrow_forwardWhat does negative feedback do? a. It establishes a set point. b. It changes the set point. c. It eliminates the set point. d. It reduces discrepancies from a set point.arrow_forwardIn negative feedback,a. a change causes responses that counteract the change.b. a response to a change damages the body.c. a change produces a response that enhances the change.d. a response to a change permanently alters the body.arrow_forward
- Living things can be distinguished from nonliving things because they havea. complexity. c. cellular organization.b. movement. d. response to a stimulusarrow_forwardWhich of these enabled humans to evolve a larger brain? A. Evolving a larger digestive tract B. Increased overall activity levels C. A vegetarian diet D. Learning to cook foodarrow_forwardWhen you step outside in the cold, your body temperature decreases; which causes shivering or contractions of your muscles. In this example, the shivering or contracting of the muscles, is what part of the feedback loop?arrow_forward
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