Biology 11 Chapter - 9
Diversity Among Animals - 16
1.
Which one of the following is true about flatworms?
a) they are all parasites
b) fertilization is external
c) fertilization is internal
d) they are all monoecious
2.
Exchange of gases in flatworms takes place through?
a) lungs
b) diffusion
c) spiracles
d) flame cells
3.
Which one of the following flatworms is Not a parasite?
a) liver fluke
b) planaria
c) tapeworm
d) blood fluke of cattle
4.
The phylum achelminthes is also known as?
a) Molluska
b) Arthropoda
c) Nematoda
d) Coloentrata
5.
The phylum achelminthes includes?
a) Earthworms
b) Roundworms
c) Flatworms
d) Tapworms
6.
Roundworms are?
a) Symbionts only
b) Free living only
c) Parasites only
d) Parasites and free living
7.
Which one of the following is not true about roundworms?
a) Digestive tract is complete
b) They are bilateral
c) They are triploblastic
d) They are diploblastic
8.
The roundworms are?
a) Pseudocoelomates
b) Acoelomates
c) True coelomates
d) Coelomates
9.
Which one of the following is true about roundworms
a) Fertilization is external
b) They are all dioecious
c) Fertilization is internal
d) A and b are correct
10.
Which one of the following is not a nematode?
a) Ascaris
b) Pinworm
c) Rhabditis
d) Tapeworm
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