No they don't because some have different skin and type of shell that keeps them safe.
energy membrane structure insulation source of glycerol
water
water
for all animals and people
yes
for some animals and people it is not for all
In the same what exactly?
they are living
no , technically no human { animals} is an energy source on earth
All animals doesn't have the adaptation,because all animals are not the same.
Animals provide love and affection, they are a source of comfort - obviously not all animals come under this category, but pets do. Animals are a source of food - meat. Animals are here for our enjoyment, we should look after them and protectect their environment. Hopes this helps :)
There are different classifications systems for life, but all those that use the term Kingdom, have all animals in one Kingdom. Therefore, all animals are in the same Kingdom as cockatiels.