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How does fur reduces the rate of heat loss from an organism?
Fur can hold a layer of air around it.That layer act as an insulator.So it reduces heat loss.
How do cactus plants cope with the shortage of water in the desert?
A well adapted plant in a desert will typicaly have a root system covering a large surface area, and that is close to the surface in order to maximise water uptake. Some plants will also have a waxy surface in order to prevent water loss from inside.
What is shivering a sign of?
Shivering is a sign of loss of heat or decreased heat levels.
Can frogs create heat?
No, it drys out there skin and then they die from the heat and loss of moisture in there body.
Do penguins have adaptations?
Yes. All types of animal life (including birds) have adaptations which enable them to live in their particular environments. For the most part, penguins are found in cold regions. Penguins are specially adapted to live in these colder areas, because they have blubber which can protect them from the cold. Cold water can remove heat from the body much faster than air, so a good insulator is required. Penguins are adapted to live in and near the ocean because they eat fish. They have special adaptations that allow them to live in the water. They cannot fly in air because their wings are too small for their body weight. The penguin is simply unable to create enough energy to take off. Penguins' wing bones are fused straight, rather than angled like a flying bird's, and this has the effect of making the wing rigid and powerful, like a flipper. The small wings and a streamlined body shape are ideal for diving in water. Unlike the majority of other birds, penguins do not have hollow bones, so are much heavier and harder to support with their small wings. The solid, as opposed to hollow, bones act as ballast to help them dive. Also, being solid, they are less prone to breakage from the stresses of swimming. Some (but not all) flying birds have hollow bones to be lighter. Penguins also have higher levels of myoglobin and feathers optimized for the aquatic environment. Myoglobin is the main way penguins store oxygen during their long dives. The muscles of flying birds are filled with mitochondria and enzymes to power flight, and there is no space left-over for myoglobin. So, flying birds cannot spend us much time underwater as penguins because they have less myoglobin (less oxygen per body mass) and lower body mass (less over oxygen). Another reason why penguins live where they do is because they are able to optimise their feathers for the aquatic environment. Penguin feathers are short and packed together tightly to keep water away from the skin and to create a smooth surface to lower drag. Flying birds have very different feathers that are fluffy to trap air for insulation. Penguins have short, round bodies, flat faces with fat pads over the sinuses, narrow noses, and a heavy layer of body fat. These adaptations provide minimum surface area in relation to body mass for minimum heat loss and protect the lungs and base of the brain against cold air in the nasal passages.
How do you stop heat loss through walls when you can not have cavity wall insulation?
keep curtains closed have a been bag dog on the outside of the door at the bottom to minimise drafts, heat loss.
How does a double-walled glass container cut down on heat loss?
It is like double glazing. An extra layer of gas or a vacuum in between will act as a very good insulator, helping to minimise heat flow.
How are desert organisms adapted to the dry climate of a desert?
Desert animals have adapted to the desert climate with their tough, scaly skin that prevents water loss and protects them from extreme heat in the day & freezing temperatures at night.
How does the structure of a vacuum flask minimise energy transfer?
The vacuum between the two layers cannot conduct heat.The silvering on the inside reflects heat back to the contents.The stopper prevents heat loss by convection.The stopper is made of poor thermal conductors.
Is precipitation heat loss or heat gain?
heat loss
What plant leaf is adapted to prevent water loss?
Most of their stomata are on the underside of the leaf.
Why don't penguins get frostbite on their feet?
During cold conditions, the flow of blood is reduced to hold onto heat. In winter, penguins will keep their feet a degree or two above freezing which reduces the chance of heat loss and avoids getting frostbite. Not all penguin species live in freezing conditions though.
How did polar bears get adapted?
Polar bears are adapted by there white fur. They are hunters so the white fur makes it difficult for them to spotted on a white background. They have small ears to reduce heat loss as the larger ears are the more heat they lose, resulting in the animal being cold. They are extremely good at swimming.
What are the advantages of wireless energy transfer?
we can minimise the loss of energy due to practically a non-resistance condition.
Why penguins habitat loss?
It depends. You could be asking about a certain type of penguins, or about a group of penguins in one country/area.
Can a insurance deem a total loss and then retract it?
No.! It's not true but extreamly minimise your loss. Some other factors are analyzed and verified after that claim is paid by company.
Why penguins don't lie down?
Because - lying down would mean a greater surface area of their body would be in direct contact with the permafrost - making heat loss quicker.
