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51.

The excretory system in annelids consists of coiled tubes calledA. flame cellsB. metanephridiaC. nephridiaD. protonephridia

Answer» Correct Answer - B
Discussion
52.

The members of pteridophyta do not possessA. leavesB. flowersC. stemD. root

Answer» Correct Answer - B
Discussion
53.

Largest number of animals belong toA. MolluscaB. AnnelidaC. ProtozoaD. Arthopoda

Answer» Correct Answer - D
Discussion
54.

Name two eggs-laying animals.

Answer» Frog and sparrow are two egg-laying animals.
Discussion
55.

Which of the following statements are true ?A. Monerans contain well-organised nucleusB. The membrane of Monera and Protista may be autotrophic and heterotrophicC. The members of protista are unicellular and eukaryoticD. Whittaker classified the organisms in five kingdoms

Answer» Correct Answer - B::C::D
Discussion
56.

Which of the following produce flowere?A. AngiospermsB. fungiC. MossesD. Ferns

Answer» Correct Answer - A
Discussion
57.

Carolus Linnaeus has worked in the field ofA. PhysiologyB. morphologyC. taxonomyD. anatomy

Answer» Correct Answer - C
Discussion
58.

The two superkingdoms created on the basis of cell structure areA. Monera and protistaB. prokaryota and EukaryotaC. Plantae and animaliaD. protista and Nonprotista

Answer» Correct Answer - B
Discussion
59.

Give an example of filamentous green algaA. spirogyraB. euglenaC. chlamydomonasD. Amoeba

Answer» Correct Answer - A
Discussion
60.

Why are fungi heterotrophic ?

Answer» As fungi can not synthesize food themselves and are dependent upon other, they are heterotrophic
Discussion
61.

Write names of a few thallophytes.

Answer» Algae like Chlamydomonous and Spirogyra, and lichen are thallophytes.
Discussion
62.

The gills of sharks are covered by an operculum.A. the skeleton of sponges is formed of spicules.B.C.D.

Answer» Correct Answer - (F)
Discussion
63.

Which one is not a bony fish ?A. Sea horseB. SalmonC. Lung fishD. Dogfish

Answer» Correct Answer - D
Discussion
64.

Bony fishes do not haveA. operculumB. placoid scalesC. swim bladderD. fin

Answer» Correct Answer - B
Discussion