biology MCQs – Page 28

Practise multiple-choice questions from biology for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

biology Mcqs

541. Of the following which one is not the characteristic of green algae?
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A. They are generally accepted as the ancestors of green plants

B. None of these

C. Chlorella is unicellular non-motile green algae

D. Some green algae possess cell wall with cellulose

542. Certain types of whales are also __________ feeder?
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A. Macrophagous

B. Filter

C. Fluid

D. None of these

543. Those fungi which can grow only on their living host and cannot be grown on available defined growth culture medium e.g. various mildews and most rust species are called_____________?
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A. All of these

B. Obligate parasitic fungi

C. Parasitic fungi

D. Facultative parasitic fungi

544. Of the following which one is not the characteristic of Kingdom Animalia.
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A. All animals are eukaryotes

B. All animals are ingestive heterotrophs

C. It is largest kingdom.

D. All animals develop from the dissimilar gametes i.e. large sperm and small egg.

545. Which of the following statement about Kingdom Protista is incorrect_______________?
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A. They contain ancestors for fungi plants & animals

B. They only include unicellular aquatic eukaryotic organisms

C. Their members have characteristics which separate them from other kingdoms

D. They do not develop from Blastula or embryo

546. Which of the following statement about AIDS is incorrect:
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A. An infected mother cannot pass the virus to her baby.

B. Results in enlargement of lymph nodes

C. Can be prevented.

D. is a host specific disease

547. 80% of the food of sponges consists of__________?
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A. Phytoplanktons

B. Zooplankton and small animals

C. all of these

D. Detrital organic particles

548. Golden algae are also known as___________?
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A. Pyrrophyta

B. Phaeophyta

C. Rhodophyta

D. Chrysophyta

549. Of the following which one is not included in Proterostomes?
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A. Molluses

B. Annelids

C. Arthropods

D. Hemichordates

550. Ecological role of fungi as decomposers is only paralleled by_____________?
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A. Bacteria

B. Virus

C. Blue green algae

D. Cyanobacteria

551. The animals in which coelom is formed due to splitting of mesocerm are known as____________?
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A. Enterocoelous

B. Emphicoelous

C. Pseudocoelous

D. Schizocoelous

552. Chalk is gradually formed of dead______________?
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A. Foraminiferans

B. Radiolarians

C. Apicomplexans

D. Actinopods

553. The leaf is bilobed with midrib between them. The plant is____________?
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A. Saraccnia

B. Dionaea

C. None of these

D. Pitcher plant

554. Psedudocoelom is character of____________?
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A. Aschelminthes

B. Coelenterates

C. Platyhelminthes

D. Annelids

555. For which of the following no preventive vaccine is available?
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A. HEV

B. HBV

C. HAV

D. HCV

556. Cyanobacteria reproduce by____________?
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A. Meiosis

B. Mitosis

C. Binary fission

D. Conjugation

557. Competition between species will be greatest if they attempt to occupy the same___________?
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A. Habitat

B. Community

C. Niche

D. Ecosystem

558. In most triploblasts after embryonic development the three layers are represented as___________?
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A. Separate layers of cells

B. Structures formed from them

C. Structures associated with them

D. Their functions in body

559. Strong chlorosis is due to the deficiency of _____________ in plants?
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A. Potassium

B. Phosphorus

C. Magnesium

D. Nitrogen

560. The most important group of producers in marine ecosystem is of__________?
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A. Diatoms

B. Euglenoids

C. Dinoflagellates

D. Brown algae

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