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The only cell organelle seen in prokaryotic cell is

lysosomesplastidsribosomesmitochondria

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Organelle without a cell membrane is

nucleuschloroplastgolgi apparatusribosome

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1 µm is

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A long tree has several branches. The tissue that helps in the side ways conduction of water in the branches is

xylem vesselsparenchymaxylem parenchymacollenchyma

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If the tip of sugarcane plant is removed from the field, even then it keeps on growing in length. It is due to the presence of

intercalary meristemlateral meristemapical meristemcambium

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A nail is inserted in the trunk of a tree at a height of 1 meter from the ground level. After 3 years the nail will

move sidewaysremain at the same positionmove upwardsmove downwards

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Parenchyma cells are

none of theselignifiedthick walled and specialisedrelatively unspecified and thin walled

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Flexibility in plants is due to

chlorenchymaparenchymasclerenchymacollenchyma

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Poultry farming is undertaken to raise following
(i) Egg production
(ii) Feather production
(iii) Chicken meat
(iv) Milk production

(iii) and (iv)(ii) and (iii)(i) and (ii)(i) and (iii)

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Poultry fowl are susceptible to the following pathogens

All of the aboveFungiBacteriaViruses

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Which one of the following fishes is a surface feeder?

CatlasCommon carpsMrigalsRohus