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
Explain the Copper Toxicity in Human? Acute copper toxicity in humans is rare and occurs due to inadvertent consumption of copper salts. Symptoms include vomiting, diarrhoea, h

According to the Mendel's law the phenotypical characteristics would be determined by pair of factors (alleles) that separate independently in gametes. What are the major types of

Question 1 Discuss briefly the acid base disorders and the biochemical findings in each disorder Question 2 Discuss hemoglobin electrophoresis and its applications. How it

Asymmetrical and Spherical - Metazoa Some creatures are asymmetrical: no matter which way we try to divide them through the middle, no two halves would appear alike. In simple

Vitamin- D deficiency Animals obtain vitamin D either through the diet or when skin is exposed to solar radiation. The deficiency of vitamin D is associated with reduced absor

A saline drip is to be prepared for a lab experiment that is looking at hydration in lab rats. Calculate the amount of NaCl need to make 4 liters of a 0.9% solution.


Determine the Food Sources of Folate? Folate occurs naturally in foods. Although folate is found in a wide variety of foods, it is present in a relatively low density except i

Q. Write the meaning of Polydypsia? Increased Thirst (Polydypsia): As the patient is losing more water through excessive urination, the patient feels thirstier and tends to tak

Q. What are the main bryophyte groups? The major bryophyte groups are the mosses, the hornworts and the liverworts.