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 C 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 lipid cells under the skin of many endothermic animals pro- vide insulation and trap generated heat.

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 C 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 lipid cells under the skin of many endothermic animals pro- vide insulation and trap generated heat.

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter37: Maintaining The Internal Environment

Section: Chapter Questions

Problem 3CT

See similar textbooks

Similar questions

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
The botulism toxin binds to which structure in the human body? The botulism toxin binds to the axon terminal, truly the cytoplasmic membrane of the neuron. The botulism toxin binds to the sarcoplasmic recticulum preventing the release of calcium. The botulism toxin binds to the cytoplasmic membrane of the muscle cell. The botulism toxin binds to the synaptic vessicles preventing the release of acetylcholine. Question 9 What are dental caries? MacBook Air
hydra Most animals have a(n) system to deliver and nutrients to cells. gastrovascular cavity foot Such systems also take and wastes away from cells. carbon dioxide In each cell is exposed to water and can independently digestive exchange gases, carry out digestion, or eliminate wastes. охудen The cells of the hydra use to pass nutrient molecules to ions other cells. circulatory In contrast, planaria possess a trilobed throughout the body to allow for diffusion of molecules between cells. that branches diffusion
Malaria disease is characterized by cycles of symptoms with 3 stages; a cold stagewhen you shiver and feel very cold, a hot stage when your fever may reach as high as 41oC (104F) and finally, a sweating stage during which your fever drops rapidly. These cycles are called paroxysms. Explain why these body temperature phases typically happen in malaria patients
The function of the plasmodesmata is to provide communication channels for neighboring animal cells to exchange nutrients and ions. True False
Striations, cylindrical cells, and multiple nuclei are observed in? skeletal muscle only cardiac muscle only smooth muscle only skeletal and cardiac muscles
1) It is _____for aquatic vertebrates to maintain a body temperature different from their surroundings because ______. A) easier; water is a much better insulator than air due to its greater density B) easier; it is possible for fish to absorb heat from the surrounding water by countercurrent exchange even when the water is colder than the fish C) harder; water is a better conductor of heat than air D) harder; terestrial vertebrates can use countercurrent exchange to absorb heat from air that is cooler than their bodies 2) Compared to terrestrial environments, marine environments have_____." A) greater differences in temperature between hot and cold seasons B) smaller differences in temperature between hot and cold seasons C) the same amount of seasonal variability in temperature
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? The amount of energy consumed decreases There is no change in the amount of energy consumed The amount of energy consumed increases
Which of the following are negative physiological feedback loops? Group of answer choices Osmoregulation in mammals Thermoregulation in mammals Generation of action potential in animal neurons Physiological mechanisms leading to labor and birth in eutherian mammals pH maintenance in animal cells
You are a PhD student interested in studying the effects of hypoxia on the behavior of mesenchymal stemcells. You want to culture cells in a hypoxic environment. You decide to use a tri-gas incubator, which allowsfor precise control of the oxygen tension, as well as the partial pressures of nitrogen and carbon dioxide inthe cell culture system.A tri-gas incubator is a type of cell culture system that allows for the control of the three main gasesin the culture environment: oxygen, carbon dioxide, and nitrogen. The oxygen tension and carbon diox-ide tension in the culture environment can be controlled by adjusting the percentages of these gases in thegas mixture that is supplied to the incubator. Hint: To calculate the partial pressure of nitrogen, you can use pN2= pTotal −pO2−pCO2 Part 1.3Calculate the partial pressure of nitrogen (in mmHg) that would be required. Part 1.4In planning for this experiment, you have to order gas cylinders ahead of time. Which cylinder should youorder the…
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
Energy from the breakdown of ATP provides the kinetic energy formuscle movement. Why does body temperature increase duringexercise?