BIOC19H3 Lecture Notes - Corpus Allatum, Rhodnius Prolixus, Ecdysone
Document Summary
Slide 3: a butterfly starts off as an egg. Its juvenile stage is caterpillar which then changes into a pupa. Inside the pupa, the caterpillar goes through metamorphosis and changes into butterfly (adult stage: the juvenile form of dragonfly lives under water. It grows and crawls out of water and eventually changes into a dragonfly. In this type, the animal must go through a series of instar forms: wings develop externally and gradually with each instar. In this type, the insect in its early stages, lives under water and in its adult stage, lives outside of water: make this correction on slide: hemimetabolous is not the same as parametabolous. In this type, the insect goes through a new stage of development = pupa stage. In pupa, the caterpillar no longer moves around, lives in a cocoon, and the juvenile form changes into an adult form.
