biology Mcqs
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

561. The radial symmetry is found in the animals of___________?
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A. Cnidaria

B. Porifera

C. Protozoa

D. All of these

562. In bacterial categories the bacteria smaller in number are_______________?
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A. Ancient bacteria

B. Gram-ive bacteria

C. Gram +ive bacteria

D. Eubacteria

563. Earthworm is an example of ______________feeder?
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A. Macrophageus

B. Detritus

C. Filter

D. Fluid

564. A bacterium with tuft of flagella at both poles is called_____________?
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A. Amphitrichous

B. Lophotrichus

C. Monotrichous

D. Peritrichous

565. Kingdom protista includes_____________phyla?
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A. 26

B. 27

C. 28

D. 29

566. Of the following which one is not found in series proterostomia?
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A. Echinodermata

B. Annelida

C. Mollusea

D. Arthropoda

567. Ferns are included in__________?
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A. Lycopsida

B. Pteropsida

C. Sphenopsida

D. Psilopsida

568. ____________is about 2.4 meter in length and comprising about two fifth of the small intestine?
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A. Jejunum

B. Duodenum

C. Ileum

D. Caecum

569. By which of the following mechanism unicellular yeast reproduce?
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A. Fragmentation

B. Conidiation

C. Budding

D. Sporing

570. Coelom that develops from the archenteron as outpouching is__________?
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A. None of these

B. Pseudocoelom

C. Enterocoelom

D. Schizocoelom

571. which of the following gives to rise two daughter cell during cell division?
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A. meiosis

B. mitosis

C. both a & b

D. none of these

572. Germ theory of disease has________________postulates?
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A. 4

B. 5

C. 3

D. 6

573. Some bacteria ranging occasionally a size of 500 ?m in length are___________________?
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A. Escherichia coli

B. Epulopiscuim

C. Spirochetes

D. Mycoplasma

574. Which of the following is an RNA virus:
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A. HBV

B. Influenza virus

C. Pox virus

D. Herpes virus

575. Those bacteria which are fully dependent upon their host for nutrition are called__________?
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A. Heterotrophic bacteria

B. Saprophytic bacteria

C. Chemosynthetic bacteria

D. Parasitic bacteria
576. Anus is surrounded by _____ types of muscles?
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A. 4

B. 3

C. 2

D. 1

577. All phostosynthetic euglenoids lose their chlorophyll when grown in dark and obtain their nutrients heterotrophically this statement is___________?
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A. Unpredictable

B. False

C. May be true may be false

D. TRUE

578. The liquid that escapes during defrosting frozen meat contains _____ bacteria?
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A. Salmonella

B. Azobacter

C. Campylobacter

D. Nitrobacter

579. Animals with greatest number of similarities are grouped together in a/an___________?
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A. Genus

B. Family

C. Order

D. Phylum

580. In planaria, numerous small branches which end blindly are called as__________?
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A. Digestive tract

B. Intestinal caeca

C. Hepatic caeca

D. Both B & C

581. An illness which largely affects girls usually just after the onset of puberty.
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A. None of these

B. Obesity

C. Bulimia nervosa

D. Anorexia nervosa
582. four daughter cells are given to rise during the process of____________?
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A. none of these

B. mitosis

C. cell division

D. meiosis
583. Which of the following disease results in Paralysis due to viral attack on C.N.S:
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A. Polio

B. Measles

C. Herpes simplex

D. Hepatitis

584. Which of the statement about viruses is incorrect___________________?
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A. They are obligate intracellular parasite.

B. They can synthesize their nucleic acid

C. They are resistant to most of antibiotic treatment

D. We can not grow them in laboratories on artificial medias

585. In the lytic cycle of bacteriophage the host DNA is__________?
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A. Digested into its nucleotides

B. Replicated

C. Turn off by the protein coat.

D. Turned on by the removal of the protein coat

586. The word virus is derived from Latin word venome meaning____________?
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A. Salty Fluid

B. Poisonous Fluid

C. Sore Fluid

D. Sweet fluid

587. Which of the following are motile zooids in cnidarians?
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A. Polyps

B. Medusae

C. Both of these

D. None of these

588. Pepsinogen is produced from__________?
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A. Parietal cells

B. All of these

C. Zymogen cells

D. Mucous cells

589. Nitrifying bacteria are the examples of___________?
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A. Parasitic bacteria

B. Saprophytic bacteria

C. Chemosynthetic bacteria

D. Hetrotrophic bacteria

590. Gametophyte of Psilopsida develops a symbiotic association with which of the following______________?
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A. Fungus

B. Protozoa

C. Algae

D. Bacteria

591. The common waste material in bacteria is____________?
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A. Urea

B. Ammonia

C. Lactic acid

D. Glycogen

592. Prechordates is another name used for___________?
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A. Hemichordates

B. Vertebrates

C. Echinoderms

D. Chordates

593. Main blood vessel of arthropods usually:
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A. Lies on lateral side

B. Lies on ventral side

C. Lies on dorsal side

D. Is not present

594. Protein coat the capsid of adenovirus is________________?
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A. Surrounded by genome

B. Surrounding genome

C. Surrounding the envelope

D. Both B and C

595. The internal buds are known as__________?
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A. Gemmules

B. None of these

C. Spicules

D. Choanocytes

596. Body is globular in_________?
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A. Brittle star

B. Sea Urchin

C. Cake urchin

D. Sea cucumber

597. The skeleton of the sponges is in the form of variously shaped needle like structures called___________?
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A. Spines

B. Brails

C. Spicules

D. Stripules

598. In sponges fertilization takes place in____________?
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A. Ectoderm

B. Uterus

C. Mesenchyme

D. Endoderm

599. Amoeba belongs to which kingdom______________?
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A. Prokaryotae

B. Monera

C. Plantae

D. Protista
600. Aschelminthes is also known as____________?
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A. Protozoans

B. Eumatazoa

C. Nematodes

D. Protoctist ancestors