Types of growth, Biology

Assignment Help:

KINDS OF GROWTH -

1.      AUXETIC GROWTH -

Body grows by enlargement of its cells without increase in number of cells.

eg. Nematodes, rotifers, tunicates. Growth of body muscle by excercise.

2.      MULTIPLICATIVE GROWTH -

It is due to increase in the number of cells as common in embryo.

3.      ACCRETIONARY GROWTH -

In post embryonic devlopment power of cell division is lost.

At some places reserve cells present, divide, producing new cells to replace the worm out cells, eg. Stratum malpighi

4.      APPOSITIONAL GROWTH -

It involves the addition of new layer on the previously formed layers.

eg. in cell wall. Addition of lamella in the formation of bone.


Related Discussions:- Types of growth

Amoebae- parasitic protozoan, Amoebae- Parasitic Protozoan The amoebae...

Amoebae- Parasitic Protozoan The amoebae of the genus Entamoeba vary in their biology. Entamoeba histolytica or the dysentery amoeba occurs as a parasite in the large intestin

Modern viral diseases, Important Modern viral diseases By  extensive us...

Important Modern viral diseases By  extensive use of vaccination and chemotherapy. Certain  serious viral diseases of the past. Like smallpox. Have been completely or largely e

Define nutritional requirements for extreme environments, Define Nutritiona...

Define Nutritional Requirements for Extreme Environments? Human beings have been able to survive and work under extreme environments of almost all regions of the earth, from po

Acute phase reactants, ESR and CRP are elevated in almost all patients of a...

ESR and CRP are elevated in almost all patients of arthritis and carditis and rarely in patients with chorea. ESR should be repeated periodically as it is useful in following the c

Future - development biology, Future - Development Biology Fertilizati...

Future - Development Biology Fertilization in flowering plants is essential for sustaining life on earth. Production of most crops depends on the effectivity of the fertilisat

What factor below contributed to the current variations, According to the t...

According to the theory of natural selection, what factor below contributed to the current variations in beak sizes of finch species on the Galapagos islands? a. Finches dispersed

Define the historical example of neuroscience, Normal 0 false ...

Normal 0 false false false EN-IN X-NONE X-NONE

Define oseltamivir, Oseltamivir (Tamiflu)   This oral neuraminidase i...

Oseltamivir (Tamiflu)   This oral neuraminidase inhibitor, started within 36 hours of symptom onset, can decrease the severity and duration of symptoms caused by either influ

How are the main classes of arthropods classified, How are the main classes...

How are the main classes of arthropods classified according to the presence of larval stage in their embryonic development? In crustaceans there are species with direct and oth

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