Identify the phloem element.
A) Trachieds
B) Vessels
C) Sieve cells
D) Xylem fibres
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Which are the first terrestrial plants to possess xylem and phloem?
Pteridophytes are known as first vascular and true land plants.
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Gum is secreted by A) Dermal layer B) Meristematic cells C) Xylem D) Phloem
A) Dermal layer
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Identify the vascular tissues. A) Xylem B) Phloem
C) Both xylem and phloem
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Identify the xylem element. A) Trachieds B) Sieve cells C) Sieve tubes D) Companion cells
(A)Trachieds Xylem elements are - Trachieds, vessels, xylem fibre and xylem parenchyma
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Identify the xylem element. A) Trachieds B) Sieve cells C) Sieve tubes D) Companion cells
2 Answers
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Bast fibres present in phloem are useful for – A) Making toys
C) Making ropes
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Xylem and phloem are examples for –
C) Complex tissue
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………. of phloem supply ………..
B) Sieve tubes, sugars
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Correct statements among the following: i. Xylem transports minerals and water. ii. Phloem distributes nutrients.
C) ii ,iii and iv
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i. Identify the element that exhibits only negative oxidation state. ii. Identify the element that exhibits only positive oxidation state.
i. F: It is most electronegative. It shows only a negative oxidation state of -1. ii. Cs: Alkali metals have only one electron in their valence shell and hence, exhibits only positive...
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