What is metaxylem?

State the metaxylem?

What is meant by electronegativity? On what factors does it depend?

The condition where protoxylem lies towards the pith and metaxylem towards periphery is called as

Read the following statements (i) Collenchyma contains lignin in its wall thickenings. (ii) Collenchyma occurs in only aerial parimary parts and s absent from the roots. (iii) Trichomes are multicellular epidermal outgrowths, which also contain some inner tissues. (iv) Xylem fibres often occur in metaxylem while they are absent or rare in protoxylem. which of these are correct? 1. (i), (ii) and (iii) 2. (i), (ii) and (iv) 3. (i) and (iii) 4. (ii) and (iv)

(a) What is Polythaemia? (b) What is Leucotosis? (c ) What is Leucokaemia?

What is amniocentesis? What are its significnace?

What is haemocoel? What is alary muscle?

What is amniocentesis? What is its significane?

What is entropy? What are the units of entropy?

What is matte? What is the utility of cryolyte in the extraction of AI?