the chrysalis is not airtight (think of it as an extremely fine net) and the pupa does not breath through lungs but through spiracles (insects, some fish and some Spiders breathe through holes that are in different sizes in different places on each insect, spider and fish the spiracles lead oxygen into the trachea and tissues)
the other name for chrysalis is pupa or cocoon..
A chrysalis
Pupa or chrysalis.
pupa or chrysalis
A pupa or chrysalis.
A cocoon is a covering made of silk that encloses a pupa, and a chrysalis is the pupa of a butterfly. The chrysalis is covered in a hard, chitnous shell. Note the difference: A cocoon is a covering of a pupa, and a chrysalis is a particular kind of pupa, usually with no enclosing cocoon. Inside a cocoon, you will often find a pupa of a moth or other insect with an inner chitinous shell, but it is not called a chrysalis unless it is the pupa of a butterfly. The pupae of some insects have visible external body structures, such as wings and legs, as they develop, while others (such as moths) have a smooth outer shell that encloses the developing structures. See http://en.wikipedia.org/wiki/Pupa
A butterfly comes out of a pupa or chrysalis.
The proper term is pupa. The butterfly pupa is the cocoon or the chrysalis that the butterfly creates to protect him during metamorphosis.
A chrysalis is formed hanging from something. Many caterpillars do form a pupa on the ground, but these are not chrysalids.
The correct spelling is "chrysalis" (insect pupa within a cocoon).
This is called a pupa (or sometimes a chrysalis)
The hard shell covering the pupa is called a chrysalis. It is formed when a caterpillar undergoes metamorphosis and transforms into a pupa before emerging as an adult butterfly or moth. The chrysalis protects the pupa as it undergoes this transformation.