Question

define: 1)pseudocoelomate 2)eucoelomate 3)poikilotherms 4)homeotherms

Answer 1

Hey there!
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1.) Pseudocoelomate :

¤These are the organisms which have false coelom.

¤ their coelom is not lined by mesoderm. It is derived from" BLASTOCOEL" ( cavity of a hollow ball like structure called blastula Formed during embryonic devekopment)

¤ Mesoderm is found scattered in pseudocoelom.

¤ Ex. Aschelminthes.

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2.) Eucoelomates :

¤ Coelom is lined by mesoderm in these organisms.

¤ Ex. annelida, arthropods, molluscans etc.

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3.) Poikilotherms:

¤ These are the organisms which lack the capacity to regulate their body temperature.

¤ These organisms are also called cold blooded animals.

¤ Ex: Pisces, amphibians etc.

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4.) Homeotherms :

¤ These are the organisms which are able to maintain a constant body temperature.

¤ These organisms are also called warm blooded animals.

¤ Ex : Aves, Mammals etc.


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# hope the answer helps you!