Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
General process of post-hatching growth in insects
While a young insect hatches out from an egg it is covered by a firm, inflexible, sclerotized cuticle, which because of its rigid structure cannot grow along with the increase in length of the hatched larva. So during development, for the hatched larva to attain its adult size and form, the old rigid cuticle at each stage of growth has to be replaced by a newer, larger one by the process of moulting. As per the development is marked off by a series of moults. The interval between the two moults is termed as stadium and the type that an insect assumes as a result of the moults is called instar. All insects undergo various moults after hatching from the egg and before emerging as adults that are called imago.
The number of moults is 4 or 5 in an insect species and is generally fixed or predetermined, but it is not absolutely constant. Furthermore, the type of the insect changes with each moult in a precise pattern characteristic of the species. Moulting is not just a mechanical process; instead at each moult, the moulted insect goes through changes both in its cuticular covering and internal organization. So you can see that development in insects is generally by the process of metamorphosis. The metamorphic - alterations may be slight and gradual or radical as occurring during the pupal stage. During this stage the lama remains quiescent with no feeding or movement, while several larval characters disintegrate and adult structures are formed. Pupal stage follows the last larval molt and from the pupa the imago emerges.
Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4
In humans, starch digestion begins in the buccal cavity but stops in the Stomach. Why? Name the two most biodiversity-rich zones of India. Name the hormone that makes the p
We now understand that mutations that cause the inhibition of apoptosis are found in tumours. Because proliferation itself is not induced by the inhibition of apoptosis, explain ho
Define Hypoglycemic effects of Dietary Factor with antinutritional effect? Of the different carbohydrate foods tested for starch digestibility and blood glucose response, those
Sulphur Sulphur is a component of the animo acids methionine, cysteine and cystine; the B-vitamins, thiamin and biotin; as well as a number of the organic compounds. Sulphate,
Biological catalysts à speed up chemical reactions in the body without being consumed in the process Reduce the activation energy needed for reactants to reach the transit
Q. What do you mean by synapses? Synapses are the structures that transmit the neural impulse between two neurons. When the electric impulse arrives the presynaptic membrane
How I can optimize shake flask culture?
Complication during gestation Many complications like uterine torsion, vaginal prolapse, mummification, foetal maceration, hydra allantois, hydro amnios and teratological abno
Explain the working of antioxidant function? The antioxidant function depends on the number of hydroxyl groups and their positions. Among the various derivatives, flavonoids ar
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!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd