The upperside is more heavily pigmented than the underside witch is often white. You see distinctions of color etc, in animals which also use fast movement to avoid detection and predation. think of the logic of the adaptation in diurnal animals; fish for instance, when viewed from below are light bellied typically, so as to blend into the overhead intense light from the sun. when viewed from above, they are typically darker and mottled, to blend in with the darkening backround. Size doesn't matter. Look at the white shark or an orca. Same logic..
The crab's main defense is a hard shell that covers the whole body (the exoskeleton). This hard shell is inflexible and so for the crab to grow it has to periodically shed it. This process of moulting is known as ecdysis. This is a time of danger for the crab, as its shell is now soft and requires time to harden.
NO. This has nothing to do with frogs which have no hard shell. Some frogs produce a poisonous slime.
A frog can breath underwater and on land, they use external fertilisation, they produce loads of frogspawn and they eat algae which is very common.
it helps them camoflage
Depending on the body part, in quite a few ways... you have to have body partsto survive.
A Macaw has a special body part?
Head, thorax and abdomen as for all insects.
I think it help by the tail and on the top of the whale shark
their lungs help hippos to breath also hippo power
their lungs help hippos to breath also hippo power
Minerals are nutrients, which are part of food. These are what help nourish the body, but the body cannot survive on minerals alone.
frog legs
The anus.
Their lungs and diaphragm
It is the tongue.
Circulatory system