Slight or no metamorphosis, Biology

Slight or no Metamorphosis

In primitive wingless insects (Apterygota) such as spring tails, silver fish etc. and in secondarily apterous insects the young ones which hatch from the egg are essentially identical to imago, differing from it only in size, immature reproductive organs and external genitalia. It moults several times leading to a gradual raise in size accompanied by the appearance of the external genitalia and maturation of sex-organs. In apterygotes, growth and moulting are seen to carry on even after reproductive maturity. Such development or life cycle is called ametabolous.

Egg -> Young goes through several stadia and moults -> Imago (Adult)

1299_Slight or no Metamorphosis.png

Figure: Ametabolous type of development  in Lepisma

 

Posted Date: 1/30/2013 7:00:10 AM | Location : United States







Related Discussions:- Slight or no metamorphosis, Assignment Help, Ask Question on Slight or no metamorphosis, Get Answer, Expert's Help, Slight or no metamorphosis Discussions

Write discussion on Slight or no metamorphosis
Your posts are moderated
Related Questions
How is it structurally explained that the motor activity of the left side of the body is controlled by the right cerebral hemisphere and the motor activity of the right side of the

What is plant cell walls made of? Explain the function of cell walls? Plant cell walls are made of cellulose embedded in carbohydrates and proteins. Cell walls help su

What is the structural flat representation of an amino acid molecule? An amino acid has a central carbon to which a carboxyl group binds on a side and to which a -R (variable r

Explain Implant Integrity Implant Integrity: A horizontal dark line at the abutment level is most probably due to screw-loosening and separation of elements.  This may happen

Preoperative antibiotics Preoperative antibiotics can decrease the incidence of infection after colorectal surgery; for elective operations, an oral regimen of neomycin (not a

Mechanism of Stomatal Opening It has been known for over a century that stomata open because of reversible turgor changes in the guard cells. Stomata open when turgor in the g

Reducing Cost of Accident One clear way to control the cost of accident would be to follow all the rules of book for safety. All the methods of safety which were described ear

Define Typical Ambient Air Pollutants Particulate matter Sulfur containing compounds Organic compounds Nitrogen containing compounds Carbon monoxide

Organism:-Fungi  Advantages:- Easy to harvest from culture medium. Texture of the fungi improves the functional properties of proteins. Disdvantages:-

Q. Etiologic factor of atherosclerosis? Various factors are responsible for atherosclerosis. These include: 1. Hyperlipidemin: Excess circulating fats in blood especially th