Question

What is primary characteristics on which the first division of organism is made? How do poriferan animals differ from coelenterate animals?​

Answer 1

Answer: The primary characteristic on which the first division of organisms is made is the nature of the cell. It is considered to be the fundamental characteristic for Classifying all living organisms. Nature of the cell includes the presence or absence of membrane-bound organelles.how do poriferan animals differ from coelenterate animals. Answer: Poriferans show cellular grade of organisation whereas coelenterates show tissue grade of organisation. Poriferans show numerous pores called ostia which are absent in coelenterates.

Answer 2

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❤The primary characteristic on which the first division of organisms is made is the nature of the cell.❤

❤ It is considered to be the fundamental characteristic for Classifying all living organisms.❤

❤ Nature of the cell includes the presence or absence of membrane-bound organelles.❤

❤ Therefore, on the basis of this fundamental characteristic, we can Classify all living organisms into two broad categories of eukaryotes and prokaryotes. ❤

❤Then, further Classification is made on the basis of cellularity or modes of nutrition.❤

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