Competitive Exams: Zoology MCQs (Practice_Test 98 of 112)
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- Match List I (Type of egg) with list II (Group of animals) and select the correct answer using the codes given below:
List-I List-II - Isolecithal egg
- Moderately telolecithal egg
- Telolecithal egg
- Centrolecithal egg
- Amphibia
- Cephalochordata
- Insects
- Bony fishes
- A
- B
- C
- D
- 2
- 1
- 3
- 4
- 2
- 1
- 4
- 3
- 1
- 4
- 3
- 2
- 3
- 2
- 4
- 1
- match List I (Structure) with List II (Availability) and select the correct answer using the codes given below:
List-I List-II - Amnion
- Primitive streak
- Dorsal lip of blastopore
- Zona radiata
- Mammalian ovum
- Amphibian gastrula
- Chick՚s gastrula
- Reptilian embryo
- A
- B
- C
- D
- 4
- 3
- 1
- 2
- 4
- 3
- 2
- 1
- 3
- 4
- 2
- 1
- 3
- 4
- 1
- 2
- Match List I (Foetal membrane) with list II (function) and select the correct answer using the codes given below:
List-I List-II - Amnion
- Chorion
- Yolk sac
- Allantois
- Fluid filled sac
- Outer protective layer
- Nutritive sac
- Vascularised respiratory organ
- A
- B
- C
- D
- 3
- 4
- 2
- 1
- 1
- 2
- 3
- 4
- 4
- 2
- 1
- 3
- 1
- 3
- 2
- 4
- Amnion and allantois are found in
- fish, frog, fowl and fox
- frog and fish
- fowl and fox
- fox, frog and fowl
- A. I. Oparin postulated that colloidal bodies arose in the. Seas during the primordial stage of the earth. He referred to them as
- protobionts
- coacervate droplets
- microspheres
- spherules
- The following processes are seen in the living cell:
- Transcription
- Configuration
- Translation
- Replication
The correct sequence in which these occur within a cell to form enzymes leading to the adaptive potential of an organism is
- 1,4, 3,2
- 4,1, 2,3
- 1,4, 2,3
- 4,1 3,2
- Serological evidence of organic evolution is confirmed on the basis of the
- a chain of haemoglobin from different species
- β chain of haemoglobin from different species
- molecular weight of haemoglobin from different species
- haem content of haemoglobin from different species
- Morphologically identical natural populations that are reproductively isolated are called
- polytypic species
- subspecies
- sibling species
- ecotypic species
- Match list I (Fossil) with list 11 (Era/Period/Epoch) and select the correct answer using the codes given below:
List-I List-II - Trilobites
- Horses
- Plesiosaurus
- Ostracoderms
- Mesozoic
- Tertiary
- Devonian
- Cambrian
- A
- B
- C
- D
- 2
- 4
- 3
- 1
- 2
- 4
- 1
- 3
- 4
- 2
- 3
- 1
- 4
- 2
- 1
- 3
- Consider the following statements: Ecological dominants are those species that
- exert major controlling influence
- live in a community
- affect the environment of all other species
- control the energy flow
Which of the above statements is/are correct?
- 1 alone
- 1,3 and 4
- 2 alone
- 1,2, 3 and 4
- Similar niches in different communities or in different regions are commonly occupied by species possessing similar habits, adaptations and adjustments. Such species are called
- ecological equivalents
- ecotypes
- ecological dominants
- diverse species
- Which one of the following statements is NOT true about energy flow?
- Energy flow is greatly reduced at each successive trophic level from producers to herbivores and then to carnivores
- The energy captured by the autotrophs does not revert back to solar input
- There is uni4irectional flow of energy
- The pyramids of energy are both top right and inverted
- Ratios between energy flow at different points along the food chains when expressed as percentages, are called
- energy flow efficiencies
- ecological efficiencies
- relative ratio of energy flow
- ecological gradients
- Productivity is the amount of organic matter produced
- per day
- per unit area per unit time
- during photoperiod of the day
- per unit area in twelve hours of photoperiod
- The total output of photosynthesis, including the organic
- The total output of photosynthesis, including the organic matter used up in respiration during the period of measurement, is called
- net primary productivity
- gross primary productivity
- net community productivity
- secondary productivity