It's called an exoskeleton. Spiders are invertibrates which mean without an internal skeleton.
there is really no wat to know in less you know the king of spider and i do know that spiders have bigger brains then bodys and they use their huge brains to fill in their body cavitys
Crayfish have internal body cavities
they have an open body cavity.
Acoelomate
The type of body cavity shared by all mollusks is pseudocoelom is a false statement. The correct answer is coelom.
In the abdomen of a spiders body.
the thoracic cavity
A coelomate animal is the one which has a body cavity in which well developed organs can be accomodated.
Pisces or fish have true internal body cavity.
Acoelomate
mantle
The type of body cavity shared by all mollusks is pseudocoelom is a false statement. The correct answer is coelom.
Exocrine.
Grasshoppers only have one body cavity, that being their mouth. They use their mandibles to pull food apart so they can eat.
The undigested waste products does not enter your body cavity. That is called as faecal matter. Scientifically speaking the food you eat is not "Inside" your body cavity. It is always "Outside" the body cavity. You go for extracellular type of digestion. I found it very difficult to teach the same in my dental college class.
abdominal cavity
It means directly into the body cavity, for example a type of injection.
Protists do not have a body cavity.
The body cavity of a frog is much larger in ratio to its body than a man's body cavity is. A frog's body cavity is also much more condensed than a man's.
In the abdomen of a spiders body.