Solitary and colonial forms, Biology

Assignment Help:

Solitary and Colonial Forms

Animals may lead their lives either like individuals or in groups. While they exist as individuals, they are termed as solitary, but if they live in organised colonies, we name then colonial. Colonies are a form of intraspecific association in which the interests of an individual are subordinate to those of the whole group. In true colonies the individuals are organically connected together by living matter or by material secreted by them. The degree and extent of closeness among individuals in a colony may change considerably. True colonies are found just only in primitive groups with simple organisation, such as protozoans and coelenterates. In sponges it is difficult to ascertain if the branched animal is an individual or a colony. Colonial forms mainly reproduce asexually. In fact the colony results due to the failure of the individuals to separate. Each individual in a colony is known as a zooid.


Related Discussions:- Solitary and colonial forms

Amphibia, describe general characters and classification of amphibia in bri...

describe general characters and classification of amphibia in brief

Synapse, SYNAPSE - The point where 2 neurons combine is synapse. It ...

SYNAPSE - The point where 2 neurons combine is synapse. It is of 2 types - (i) Axosomic (between axon & cyton) (ii) Axodendric (between axon & dendron) Axon is term

Endodermis , Endodermis is the layer of cells surrounding the vascular cyl...

Endodermis is the layer of cells surrounding the vascular cylinder of plants.

Zoonoses disease-tanapox, Tanapox Tanapox infection is endemic to equatori...

Tanapox Tanapox infection is endemic to equatorial Africa and is extremely rare outside Africa. Tanapox was initially recognized in humans in 1957 and 1962 in Kenya. It is caused

Protozoa, disadvanatge of protozoa

disadvanatge of protozoa

What is a goiter, What is a goiter? What is endemic goiter? How is this pro...

What is a goiter? What is endemic goiter? How is this problem socially solved? Goiter is the abnormal enlargement of the thyroid gland. The goiter appears as a tumor in the ant

Netlike membranous complex of superposed flat saccules, Q. A netlike membra...

Q. A netlike membranous complex of superposed flat saccules with vesicles detaching from the extremities seen in electronic microscopy. What is the observed structure? What is its

What is eutrophication, What is eutrophication" describe its consequences o...

What is eutrophication" describe its consequences on the life of plants and animals living in such waters. Why is oxygen depletion in a eutrophicated water-body faster at nigh

Why are vaccines used in the prevention of infections, Why are vaccines use...

Why are vaccines used in the prevention but not in the treatment of infections? Why can antivenom serums be used in prevention and treatment? Vaccines are not used in the treat

What is a phenotype, What is a phenotype? A phenotype is each observabl...

What is a phenotype? A phenotype is each observable characteristic of a living being conditioned by its genes. Some phenotypes may be changed by nongenetic factors (for instanc

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