Answer:
So they are lighter and move quicker.
Explanation:
With the small wings and bodies birds have it would be hard for them to escape predators and lift their own weights if their bones were dense like humans' bones. The hollow part of the birds' bone is connected to their lungs so they have enough oxygen to fly easily. Hope this can help you! :)
<span>Ecological Benefits of Sponge:
<span>Provide food source
Provide shelter/habitat
Provide structural strength to reefsMIneralization of nitrogen and carbon and nutrient recycling
</span>
Commercial Benefits of Sponge:
<span>A great source of skin care product that is hypoallergenic and great for sensitive skin
Great cleanser foams
<span>Sea sponge agriculture gives livelihood to people</span></span></span>
Hi
Firstly, we have to say that t<span>he rate of metabolism of a cell is a function of its mass, whereas the rate of exchange of materials and heat energy that metabolism generates is a function of the cell's surface area. Basically that's how it works</span>
Rutherford's experiment consistent of bombardment of a gold foil by alpha particles and then measurement of the deviation of the alpha particles. The direction of deviation indicated the charge in the region of the atom.
Most of the particles passed through without deviation, indicating that most of the atom consists of empty space.