Slight or no metamorphosis, Biology

Assignment Help:

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

 


Related Discussions:- Slight or no metamorphosis

Tertiary prevention -community mental health programme, Tertiary Prevention...

Tertiary Prevention: In tertiary prevention, emphasis is placed on reducing disability resulting from illness. Tertiary prevention often means long term care. Disability may r

Cytokinesis, Cytokinesis It is defined  as the division or cleavage  of...

Cytokinesis It is defined  as the division or cleavage  of cytoplasmic  part   of the cells  into  two  daughter  cells. It is first  indicated   during  late  anaphase  by app

What do you mean by st hystersis, Q. What do you mean by ST Hystersis? ...

Q. What do you mean by ST Hystersis? Ans. The rate of recovery of ST depression has been recognized as a measure of ischaemia severity for many years. When comparing the m

Connecting implants to natural teeth, Connecting implants to natural teeth ...

Connecting implants to natural teeth and use as pier abutments The issue of connecting implants and teeth to support a fixed prosthesis is controversial and unresolved. The inh

Explain demography and demographic transition, Explain Demography, Demograp...

Explain Demography, Demographic Transition and Demographic Cycle We know that population of different countries in the world is always changing. For some countries like India a

Ecology, Explain how human activities can cause an imbalance in biogeochemi...

Explain how human activities can cause an imbalance in biogeochemical cycling and lead to problems such as cultural eutrophication and fish kills.

Illustrate about the ward halstead and luria, Illustrate about the Ward Hal...

Illustrate about the Ward Halstead and Luria The linear approach is best exemplified in the work of A.R. Luria and various collaborators, while the configurational approach is

Explain risk assessment, Explain Risk Assessment Risk Assessment   :  ...

Explain Risk Assessment Risk Assessment   :  The scientific evaluation  of  known  or  potential adverse  health effects  resulting  from  human exposure to food borne hazards

Vitamins necessity, Vitamins necessity Vitamins are essential organi...

Vitamins necessity Vitamins are essential organic substances. They are micro nutrients and required in small quantities. They do not produce any energy by themselves.

Agro industrial-factors affecting vitamin utilization, Factors affecting vi...

Factors affecting vitamin utilization Raw soybean contains enzyme lipoxygenase which can be destroyed by heating for 5 min with steam at atmospheric pressure. Lipoxygenase cata

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd