Question

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|:- Fill in the blanks.

Sieve tubes are the main conducting elements in the ( i )__________. These are ( ii )_________, cylindrical, ( iii )________ walled cells arranged in vertical rows. The end wall of each sieve tube is ( iv )________ i.e., it has fine pores, like those in a sieve. The perforated end walls are therefore termed ( v )_______. The pores or perforations are called ( vi )________. Food materials can easily pass through sieve areas. At maturity, sieve tubes lack the ( vii )________. Yet, the sieve tubes remain living, dependent on the adjacent ( viii )________ cell.​

Answer 1

Answer:

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I) angiosperms

ii) long

iii) thin

iv) thick

v) sieve area

vi) sieve plates

vii) nucleus

viii) nucleus-containing companion cells

Answer 2

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I) angiosperms

ii) long

iii) thin

iv) thick

v) sieve area

vi) sieve plates

vii) nucleus

viii) nucleus-containing companion cells