As the temperature surrounding an endotherm decreases from its normal body temperature down to the freezing point of water, what happens to the amount of energy consumed by this animal? O The amount of energy consumed decreases There is no change in the amount of energy consumed The amount of energy consumed increases

As the temperature surrounding an endotherm decreases from its normal body temperature down to the freezing point of water, what happens to the amount of energy consumed by this animal? O The amount of energy consumed decreases There is no change in the amount of energy consumed The amount of energy consumed increases

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter39: Animal Structure And Function: An Introduction

Section: Chapter Questions

Problem 5TYU

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What effect would swimming in cool water have on body temperatureregulation? What would happen if a negative-feedback mechanismdid not return the value of a variable, such as body temperature, to itsnormal range?
Endothermic animals can maintain consistent temperature conditions by generating, main- taining, and regulating their body heat. Under cold conditions, more body heat becomes lost to the environment. Endothermic ani- mals rely on different mechanisms that allow them to maintain their body heat. Which of the following mechanisms that occur in endothermic animals does not describe a mechanism by which they maintain their body heat under these types of conditions? A B с D Some endothermic animals hibernate during extreme environmental conditions, which decreases the rate of metabolic reaction and decreases heat loss. The tissues of the blood vessels of many endothermic animals can dilate and move closer to the skin, allowing for heat to move more readily into the environment. Shivering, which can occur involuntarily in most endothermic animals, produces rapid muscle contractions, which increase the rate of cellular respiration and thereby increase heat production. Layers of densely packed…
Thermoregulation is the process by which animals maintain an internal temperature within a tolerable range. Which of the following statement is NOT TRUE about Thermoregulation ? Lütfen birini seçin: O a. Endothermic animals generate heat by metabolism O b. Ectothermic animals gain heat from external sources O c. In general, ectotherms tolerate greater variation in internal temperature, while endotherms are active at a greater range of external temperatures O d. Ectothermy is more energetically expensive than endothermy
Energy from the breakdown of ATP provides the kinetic energy formuscle movement. Why does body temperature increase duringexercise?
light stimulus Refer to the figure below to answer the question that follows: 40 Bobcat (endotherm) H Enake (netother) 10 10 40 20 30 Ambient temperature (°C) 51. The diagram above shows the body temperature vs ambient temperature for a bobcat and snake. The Despite this extra energy animal that is expending more energy at lower temperatures is the expenditure, the payoff is that a. snake; it can be active during a wide range of temperatures b. bobcat; it can conserve energy c. snake; it can conserve energy d. bobcat; it can be active during a wide range of temperatures snake; it can hide for longer in Mr. vonk's physics room e. Body temperature (°C) 20
constrict The regulation of body temperature is an example of a(n) mechanism because an above-normal body temperature stimulates mechanisms to decrease it, while a below- normal temperature causes changes to bring it up. dilate Вook positive feedback Print The thermostat is located in the part of the brain called the blood vessels erences hypothalamus When the core body temperature falls below normal, the negative feedback of the skin constrict and then receive nerve impulses to induce shivering to generate heat. sweat glands skeletal muscles When the body temperature is higher than normal, the blood vessels of the skin and the nervous system activates to cool the body by evaporation. cerebellum Reset
Ectotherms use more energy to maintain their body temperature than endotherms are better able to carry out intense, long-duration activity than endotherms have a more constant internal body temperature than endotherms gain most of their heat from external sources have a higher metabolic rate than similarly-sized endotherms
When your body temperature rises, your body responds by sweating and the evaporation of sweat will cool your skin. This is an example of emergent properties O positive feedback regulation Onegative feedback regulation O chemical cycling
In a fully grown animal (i.e., one that is not growing), ingested energy becomes O excreted chemical energy + absorbed chemical energy. O heat + chemical energy accumulated in body tissues. heat + excreted chemical energy + mechanical energy of external work + absorbed energy O heat + absorbed chemical energy.
Positive feedback loops are the opposite of negative feedback loops. In a positive feedback loop, any change in the original variable triggers mechanisms that actually push the variable further in the direction of the change. Imagine that body temperature was regulated in this way. Briefly explain what would happen.
Consider an ectotherm and an endotherm of equal body mass. Which of the following would you expect to be true? -both animals require the same amount of energy per unit mass -the ectotherm requires more daily calories from food than the endotherm -the endotherm requires less energy per unit mass but more total energy than the ectotherm -the ectotherm requires less energy per unit mass but more total energy than the endotherm -the ectotherm could survive a longer period without food relative to the endotherm
All else being equal, a warm chameleon sitting on a sunny tree branch will experience a decrease in body temperature due to conduction if: It changes color, and its new hue is a lighter color, reducing the amount of energy the chameleon absorbs from the sun. The branch is cooler than the chameleon, and heat moves directly from the warmer animal to the cooler branch. It opens its mouth, allowing water to evaporate from its tongue and cheeks. OA cold breeze moves over the chameleon, transferring heat from the warmer chameleon to the cooler, moving air.