Practice Test

Q1) Taxon is the Show Answer

Q2) Bacteria are (were) considered more as plants than animals because of the presence of
Show Answer

Q3) Single stranded DNA is found in Show Answer

Q4) Silver fern is Show Answer

Q5) Bamboo is classified as Show Answer

Q6) The largest invertebrate is Show Answer

Q7) Ginger is a stem and not a root because Show Answer

Q8) Which among the following is the largest phylum in the animal kingdom in respect of number of species ? Show Answer

Q9) Which one of the following is not a chordate? Show Answer

Q10) Two bacteria found to be very useful in genetic engineering experiments are Show Answer

Q11) Litmus is naturally extracted from Show Answer

Q12) Red snow causing alga is Show Answer

Q13) Which place in India is called " the Golden Mine of Liverworts"?
Show Answer

Q14) Eutrophication is the result of Show Answer

Q15) Which of the following is a fresh water sponge? Show Answer

Q16) Book lungs occur in Show Answer

Q17) Marsupial Kangaroo is Show Answer

Q18) Which one of the following pairs of animals comprises 'jaw-less fishes'? Show Answer

Q19) The deadliest mushroom is Show Answer

Q20) The condition in which the body's internal environment remains relatively constant, within its limits is Show Answer

Q21) Which of the following pairs of animals are cold-blooded? Show Answer

Q22) The five kingdom classification was given by Show Answer

Q23) Consider the following statements
1. Phylogenetic system of classification is based on evolutionary relationship of organisms.
2. Artificial system of classification, classified plants as herbs, shrubs and trees.
Which of the statement(s) given above is/are correct about classification?
Show Answer

Q24) In which kingdom, would you classify the archaea and nitrogen fixing organisms, if the five kingdom system of classification is used? Show Answer

Q25) Assertion (A) Two kingdom system was proposed by Linnaeus.
Reason (R) Five kingdom system proposed by RH Whittaker.
Codes Show Answer

Q26) Consider the following statements
1. Two kingdom of classification and binomial nomenclature is introduced by Linnaeus.
2. According to four kingdom system of classification, all organisms are divided into four kingdoms.
3. Ernst Haeckel, suggested a third kingdom-Protista in three kingdom system of classification.
Which of the statement(s) given above is/are correct? Show Answer

Q27) Most of lichens are composed of Show Answer

Q28) Consider the following statements
1. The common name of Ceradonia lichen is reindeer moss.
2. The common name of Certraria lichen is iceland moss.
3. The algal partner of a lichen is called phycobiont.
Which of the statement(s) given above is/are correct? Show Answer

Q29) Consider the following statements
1. among rust, smut and mushroom all the three bear basidiocarps.
2. Edible part of mushroom is basidiocarp.
3. Citric acid is produced by Aspergillus.
Which of the statement given above are correct? Show Answer

Q30) Which choice below generally represents the correct order of events in fungal sexual reproduction? Show Answer

Q31) Assertion (A) The fungi are widespread in distribution and they even live on or inside other plants and animals.
Reason (R) Fungi are able to grow anywhere on land, water or on other organisms because they have a variety of pigments, including chlorophyll, carotenoids fucoxanthin and phycoerythrin.
Codes Show Answer

Q32) Assertion (A) Penicillin is obtained from Penicillium notatum.
Reason (R) Ergot is obtained from Claviceps purpurea.
Show Answer

Q33) Sphagnum is used as a packing material for transporting living plants because of its Show Answer

Q34) Which of these statements are wrong?
1. Parapodia are lateral appendages in arthropods used for swimming.
2. Chloragen cells of earthworm are similar to an organ of vertebrate kidney.
Which of the statement(s) given above is/are correct?
Show Answer

Q35) Assertion (A) All reptiles have three-chambered heart.
Reason (R) Reptilian heart is more advanced than avian heart.
Show Answer

Q36) Assertion (A) In the adult bird, only the left ovary is well-developed.
Reason (R) A single ovary results in loss of weight as well as in decreasing the number of eggs produced. Show Answer

Q37) Consider the following statements
1. Chief excretory product in man is ammonia.
2. Birds are ammonotelic.
3. Jacobson's organ is an olfactory sense organ found in snakes.
Which of the statements given above are correct? Show Answer

Q38) Mosses possess
1) multicelluar sex organs
2) jacketed sex organs
3) covered embryo stage Show Answer

Q39) Which of the following statements is/are not true?
1) In Urochorodata,notochord is present only in larva tail.
2)In Cephalochordata, notochord extends from head to tail region.
3) Brachiostoma belongs to Hemichordata
4) Only one class living members,class Cyclostomata represents the Duper Class Agnatha. Show Answer

Q40) Which of the following statements are true/false?
1) In Torpedo the electric organs are capable of generating strong electric shock to paralyze the prey.
2) Bony fishes use pectoral, pelvic, dorsal , anal and caudal fins in swimming.
3) Amphibian skin is moist and has thick scales.
4) Birds are poiklothermous animals.
Show Answer

Q41) Which of the following insect(s) is/are economically important?
1) Apis (Honey bee)
2) Bombyx (Silkworm)
3) Laccifer (Lac insect) Show Answer

Q42) Which of the following statements are correct?
1) A specific name can be repeated.
2) The basic unit of biological classification is species.
3) All organisms do not reproduce sexually.
4) African sleeping sickness is caused by Leishmania donovani. Show Answer

Q43) Assertion : Systematic is the branch of biology that deals with classification of living organisms.
Reason : The aim of classification is to group the organisms. Show Answer

Q44) Assertion : Sponges are less specialized ones.
Reason : Sponges show a high power of regeneration. Show Answer

Q45) Assertion : Bentham and Hook's system of classification is based on more number of characters and natural affinities.
Reason : Bentham and hooker's system of classification is phylogenetic system Show Answer

Q46) Assertion : The species is reproductively isolated natural population
Reason : Prokaryotes cannot be kept under different species on the basis of reproductive isolation. Show Answer

Q47) Assertion : Broad spectrum antibiotics are produced by Streptomyces.
Reason :They can destroy microorganisms by inhibiting DNA replication or protein synthesis. Show Answer

Q48) Assertion :Plasmodium causes disease in female Anopheles mosquitoes
Reason : Female Anopheles mosquitoes feed on human blood Show Answer

Q49) Consdier the following statements
1) Tapeworm is hermaphrodite
2) Roundworm has seprate sexes.
3) Fliaria is caused by an nematode
4) Guinea worm is an annelid
Which of the statements given above are correct ? Show Answer

Q50) The micro-organism which is associated with the production of Bt cotton is a Show Answer

Q51) The slow rate of decomposition of fallen logs in nature is due to their: Show Answer