Campbell Biology: Concepts & Connections, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (8th Edition)
8th Edition
ISBN: 9780133909029
Author: Jane B. Reece, Martha R. Taylor, Eric J. Simon, Jean L. Dickey, Kelly A. Hogan
Publisher: PEARSON
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Textbook Question
Chapter 20, Problem 7TYK
Which of the following best illustrates homeostasis? (Explain your answer.)
a. Most adult humans are between 5 and 6 feet tall.
b. All the cells of the body are about the same size.
c. When the salt concentration of the blood goes up, the kidneys expel more salt.
d. When oxygen in the blood decreases, you feel dizzy.
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Which of the following statements is true?
a.Cardiac muscle cells are found in the heart and large blood vessels.
b.Cardiac muscle cells have many nuclei.
c.Striated muscle cells are long and cylindrical with many nuclei.
d.Smooth muscle cells have T tubules.
Which of the following statements is True?a. Ectotherms generate most of their body heatmetabolically.b. Ectotherms include birds and mammals.c. Ectotherms experience variable body temperatures.d. Ectotherms are known as “warm-blooded” animals.
which of the following situations illustrates that a homeostatic mechanism is not operating properly?
a. acute high blood pressure
b. normalized blood glucose levels
c. dailt fluid intake equals dailty fluid output
d. all of these illustrate homestatic mechanisms operating properly
Chapter 20 Solutions
Campbell Biology: Concepts & Connections, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (8th Edition)
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
- Which of the following statements is (are) accurate in regard to skeletal, cardiac, and smooth muscle tissues?a. Cardiac muscle is autorhythmic.b. Smooth muscle is voluntary.c. Skeletal muscle is arranged in sarcomeres.d. Skeletal, cardiac, and smooth muscle tissues are striated.e. Smooth muscle can be found in the walls of arteries and veins.arrow_forwardWhich of the following is NOT a mechanism to maintain the body’s internal temperature? A. Fluid has a high capacity for heat, so it requires a great deal of energy to raise its temperature. B. Warmed fluids from the body’s surface return to the body’s core, thus heating the body. C. Fluid acts as a coolant by increasing the blood flow from the warm body core to the peripheral tissue, thus cooling the body. D. Fluid is evaporated as sweat from the skin’s surface, thus cooling the body.arrow_forwardWhich of the following physiological event is not maintained by homeostasis? Select one: a. Temperature of the body. b. Blood pressure. c. Concentration of oxygen in the body. d. Concentration of nutrients in the body.arrow_forward
- Which molecule is acting a like ball-bearings in the cartilage? Select one: a. Proteoglycan. b. Type-2 collagen fibril. c. Hyaluronic acid. d. Interstitial fluid.arrow_forwardThe process of monitoring and adjusting of the body’s condition, such as temperature and pH, is known asa. exothermy.b. homeostasis.c. osmoregulation.d. ectothermy.arrow_forwardWhich internal factor must be monitored and adjusted to maintain homeostasis? a. blood pressure b. internal temperature c. blood pH d. all of the abovearrow_forward
- Which of the following is an example of negative feedback? A. High blood sugar will increase the viscosity of blood plasma (plasma is concentrated). In response, water is drawn into the plasma from surrounding tissues in order to dilute the plasma B. Breathing rate increases during exercise to provide more oxygen to muscle cells. Heart rate also increase to increase the speed at which the oxygen is delivered. C. During digestion cells in the stomach produce HCl to begin breaking down proteins, the HCl then stimulates the release of pepsin, to continue breaking down proteins. D. In the immune system, antibodies produced by B-cells bind to antigens, which activates other B-cells to produce antibodies of the same kind.arrow_forwardWhat could happen due to a failure in homeostasis? Select one: a. The accumulation of waste products. b. The loss of excess water from the body. c. Maintaining excess levels of sugar in the body. d. All of the above are potential outcomes of failure of homeostasis.arrow_forwardWhat is an example of an accurate representation of the level or organization of the body, from smallest to largest? A. Lung, tissue, oxygen atom, O2 cells, lungs B. Carbon atom, blood cell, heart tissue, heart C. White blood cell, hydrogen atom, immune system, glands. D. Iron atom, nervous tissue, brain, brain cellsarrow_forward
- Which molecule is acting a like ball-bearings in the cartilage? Select one: a. Interstitial fluid. b. Type-2 collagen fibril. c. Hyaluronic acid. d. Proteoglycan.arrow_forwardMark the following statements as true or false. If a statement is false, correct it to make a true statement. a. Structure and function are closely related at the organ level only. b. Homeostasis is the condition of having a dynamic equilibrium of the internal environment. c. Positive feedback loops are triggered by a deviation from a homeostatic set point and are shut down when conditions return to the set point. d. The effects of negative feedback loops are amplified to create an escalating response. e. Cell-cell communication is required to coordinate the activities of the whole bodyarrow_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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