Phylum - Annelida MCQ Question with Answer

Phylum - Annelida MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

Question No : 29
The direction of blood flow in the dorsal vessel of earthworm is

from the posterior to the anterior end

from the anterior end to the posterior end

from dorsal vessel to ventral vessel

alternately in both directions (a) and (b)

Question No : 30
The septal and pharyngeal nephridia open into the alimentary canal and are of enteronephric type. It is an adaptation for

conservation of water

conservation of heat

regulation of temperature

regulation of amino acids

Question No : 31
The dorsal blood vessel in earthworm is

distributive in 1-13 segments

collective in 1-13

completely distributive

completely collective

Question No : 32
Pheretima is

sterile

unisexual

hermaphrodite

radial symmetrical

Question No : 33
The chloragogen cells of earthworm are analogous to

liver of invertebrates

liver of vertebrates

kidney of vertebrates

uriniferous tubules of vertebrates

Question No : 34
The number of segments in leech is

120

Question No : 35
Structure typically represented in every segment of earthworm is

ovary

chloragogen cell

testes

ganglia

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