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Why is the rate of heat loss greater in a small animal than a large one?
Small animals have a higher surface area-to-volume ratio compared to larger animals. This means that they have more surface area through which heat can be lost relative to their body size, leading to a faster rate of heat loss. Larger animals have a smaller surface area-to-volume ratio, which helps them retain heat more efficiently.
Why do rats have a high metabolic rate?
Rats have a high metabolic rate because they are small animals with a relatively large surface area-to-volume ratio, leading to faster heat loss and requiring more energy to maintain their body temperature. Additionally, rats are active creatures with quick movements, which also contributes to their high metabolic needs.
What are 2 things homethermic animal can to do produce more heat?
A homeothermic animal is one that maintains its body heat from the inside, at a relatively constant temperature. Two ways it can produce more heat are to consume additional calories and to increase the level of activity.
How the rate of respiration controlled by the animal organism?
Breathing is the mechanical procedure in which air reaches the lungs. The rate of respiration is controlled by a respiratory center in the brain stem that responds to changes in the hydrogen ions and carbon dioxide in the blood.
How many species vanish each week?
It is estimated that about 150-200 species go extinct every week. This rate is significantly higher than the natural background extinction rate. Loss of habitats, climate change, pollution, and other human activities are some of the main reasons for this high extinction rate.
What does an insulator do to the rate of heat transfer?
It reduces the rate of transfer.
Why metabolic rate reduces after food?
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How the surface area affects heat loss?
Heat loss of water: The surface area effects the the rate of heat loss because the rate of heat loss increases if the surface are is higher. How: The water is spread out into a bigger space meaning the
Why does coffee stay hot longer in a shiny pot?
because it absorbs the heat given off by the coffee reducing heat loss.
The rate of heat loss from the hot cup change during the experiment answer?
The rate of heat loss from the hot cup decreased during the experiment.
What is the basic function of insulation?
Heat insulation reduces the rate of heat flow. Sound insulation reduces the amplitude of the sound energy transmitted through a cavity.
How does loft insulation save heat energy?
Heat always flows from a warm region to a cooler region. An uninsulated house loses heat at a faster rate during cold climates than an insulated one. Insulating a loft reduces the amount of heat loss from the roof by means of installing insulating materials such as fiberglass matting, which reduce the U-value of the loft. The U-value provides an indication of how much heat loss occurs from an area, the higher the U-value, the greater the heat loss.
What are the adaptations for reducing the rate of heat loss to the environment?
Animals have adaptations such as insulation (fur, blubber), countercurrent heat exchange mechanisms to reduce heat loss, behaviorally seeking shelter, and adjusting metabolic rate to regulate body temperature and minimize heat loss to the environment.
How did the rate of heat loss from the hot cup change during the experiment?
The rate of heat loss from the hot cup likely decreased over time as the temperature of the cup approached that of the surroundings. Initially, when the cup was hot, the rate of heat loss would have been higher due to the temperature difference between the cup and the surroundings. As the cup cooled down and approached equilibrium with the room temperature, the rate of heat loss would have reduced.
Why camel has a thick layer of fur on the upper surface?
Camels have thick far to prevent the strong rays of the sun from hitting their skin directly. This in turn reduces the rate of water loss from their skins, as it reduces the rate of sweating.
What is adiabatic rate?
the rate of cooling that occurs when dry air rises without gain or loss of heat
What is dry adiabatic rate?
the rate of cooling that occurs when dry air rises without gain or loss of heat
