Question

Write one difference each between the following pairs. i)Porifera and Coelenterata ii)Arthropoda and mollusca iii)Invertebrates and Vertebrates iv)Platyhelminthes and Nematoda

Answer 1

Answer:

i) Porifera: numerous pores throughout the body

Coelenterata: single opening in the body works as mouth

ii) Arthropoda:largest phylum, invertebrates with jointed leg

Mollusca: second largest phylum, soft bodied invertebrates

iii) Invertebrates : non-cordates, do not have backbone

vertebrates: cordates,have backbone

iv) Platyhelminthes: have incomplete guts, and have flame cells to excrete

Ñematodes: complete ones, ñematodes are higher than Platyhelminthes.

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