The
metamorphosis
of insects (insects)
experienced metamorphosis stage, the insect can be divided into groups of insects ametabola, holometabola, and hemimetabola.
1)Ametabola
Ametabola is an organism that does not undergo metamorphosis. stage owned is stage eggs and imago (adult). For example nerdy lay eggs then develop into adults without metamorphosis.
experienced metamorphosis stage, the insect can be divided into groups of insects ametabola, holometabola, and hemimetabola.
1)Ametabola
Ametabola is an organism that does not undergo metamorphosis. stage owned is stage eggs and imago (adult). For example nerdy lay eggs then develop into adults without metamorphosis.
2)Holometabola
Holometabola are organisms that undergo complete metamorphosis. This animal has
a stage egg, larvae (caterpillar), pupae (chrysalis) and imago (adult).
Examples of animals that undergo complete metamorphosis are butterfly. Egg
stage we can observe the lime leaves. The eggs become larvae actively feed on
the leaves of lime. larvae stage happen several times a change of skin, called
the ekdisis. After that, the larvae turn into pupae (chrysalis). Pupa is a
resting phase. Then, pupa developed into a butterfly that can fly and breed
again to produce eggs. Another example is holometabola beetles, moths, ants,
and bees.
3)HemimetabolaHemimetabola are organisms that undergo incomplete metamorphosis. Stage owned by this animal are egg, larvae or nymph,board rates -imago, and imago (adult). For example is beetles, grasshoppers, and cockroaches. Egg stage can be observed on the sand as the medium of egg laying.
Metamorphosis
frog (amphibian)Phase frog metamorphosis is generally divided into three stages, namely premetamorfosis, prometamorfosis, and metamorphosis climax. During premetamorfosis stage, the fertilized eggs grow into tadpoles (tadpoles). Tadpoles grow in size with little change in body shape. on stage prometamorfosis, rear legs up and slow body growth occurs. During metamorphosis climax, front legs and tail appear fades. Body shape changes during metamorphosis of the frog is influenced by the activity of the hormone thyroxine. Thyroxine is controlled by TSH (Thyroid Stimulating Hormone) produced the pituitary gland.
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