Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305073951
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Textbook Question
Chapter 31, Problem 15SQ
With negative feedback, detection of a change brings about a response that ______ the change.
- a. reverses
- b. accelerates
- c. has no effect on
- d. mimics
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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
a positive-feedback system is one in which
a. a variable is charged in the opposite direction to the original change that initiated the system
b. a variable is changed in the same direction as the original change that initiated the system
c. two opposiding variables are played against each other
d. the initiating variable is always increased
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 31 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 31 - ___ tissues are sheetlike with one free surface....Ch. 31 - _______ keep fluid from leaking between cells. a....Ch. 31 - Exocrine glands are specialized ______ tissue. a....Ch. 31 - A rubbery secreted matrix of glycoproteins and...Ch. 31 - Blood cells develop from stem cells in ________....Ch. 31 - Prob. 6SQCh. 31 - Cytoplasmic extensions of _______ send and receive...Ch. 31 - Cultured Skin for Healing Wounds Diabetes is a...Ch. 31 - Cultured Skin for Healing Wounds Diabetes is a...Ch. 31 - Cultured Skin for Healing Wounds Diabetes is a...
Ch. 31 - ______ muscle pulls on bones and _______ muscle...Ch. 31 - Straps or dense, regular connective tissue...Ch. 31 - ______ increase the surface area of some...Ch. 31 - Tears are an _______ secretion released by...Ch. 31 - Cancers most commonly arise in ______ tissue. a....Ch. 31 - The most abundant protein in your body is ________...Ch. 31 - Match each term with the most suitable...Ch. 31 - With negative feedback, detection of a change...Ch. 31 - IPSCs are nearly identical to human embryonic stem...Ch. 31 - Radiation and chemotherapy drugs preferentially...Ch. 31 - Each level of biological organization has emergent...Ch. 31 - The micrograph to the right shows cells from the...
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- In 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_forwardCells express different genes in response to a. internal triggers and external signals b. external signals c. internal triggersarrow_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_forward
- Our nerve impulse travels from one neuron to the next in the form of. a. chemical signal b. electrical signal c. electromagnetic signal d. pressure signalarrow_forwardIn negative feedback, the variable being regulated is changed in the ______ direction, while in positive feedback the variable is changed in the ______ direction. A. same, opposite B. negative, positive C. opposite, same D. decreasing, increasingarrow_forwardWhich statement below best describes whether or not there is an advantage of using iPSCs to induce repair of bodily damage within a patient over using embryonic stem cells that have been donated? a. Because the iPSCs originated from the patient and thus probably will avoid rejection by the patient’s own immune system. b. Embryonic stem cells are easier to obtain. c. There are more ethical issues involved in iPSCs. d. Only embryonic stem cells are vastly renewable.arrow_forward
- which of the following scenarios can be classified as a negative feedback loop? a. increase in oxytocin caused by increased contractions b. increase in blood pressure to reduce heart rate c. increase in testosterone to help increase a fight or flight response d. increase in platelet production to help increase blood clottingarrow_forward______are signaling molecules that travel through the blood and affect distant cells in the same individual. a. Hormones c. Pheromones b. Neurotransmitters d. Neuromodulatorsarrow_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_forward
- Recent studies suggest that blue light exposure can impact human circadian rhythms. This suggests that blue light disrupts the function of the _____ gland(s). a. adrenal b. pituitary c. pineal d. thyroidarrow_forwardIn a negative feedback loop, the effector produces changes that are a. in the same direction as the change produced by the initial stimulus. b. opposite in direction to the change produced by the initial stimulus. c. unrelated to the initial stimulus.arrow_forwardWhich of these statements about homeostasis is true? a.The internal environment is maintained absolutely constant. b.Negative feedback mechanisms act to correct deviations from a normal range within the internal environment. c.Homeostasis is maintained by turning effectors on and off. d.All of these are true.arrow_forward
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What is Homeostasis? | Physiology | Biology | FuseSchool; Author: FuseSchool - Global Education;https://www.youtube.com/watch?v=quQr6X1Q58I;License: CC-BY