Phylum Mollusca: Class Monoplacophora Quiz Questions and Answers PDF - 77

MCQ 381: Since 1952, the monoplacophora are being well known in

1. fossils form
2. unicellular form
3. multicellular form
4. living form

MCQ 382: The larva of the phylum Nemertea is known as

1. pilidium larva
2. operculum
3. tadpole
4. Muller's larva

MCQ 383: The size of hemichordates is approximately

1. 10-40 cm
2. 20-30 cm
3. 50-65 cm
4. 5-7 cm

MCQ 384: If an arrangement of the body parts of an organism, in such a way that any plane passing through the oral, central or aboral axis, dividing the body into a mirror image, the resulting symmetry is called

1. bilateral
2. central
3. radial
4. aboral

MCQ 385: If an animal can be divisible into symmetrical halves on either side of a unique plane, the resulting symmetry is known as

1. equal
2. parallel
3. radial
4. bilateral