Memebers of Winteracae, Tetracentraceae and trochodendraceae

Identify the statements as true(T) or false(F). A. Xylem fibres are the components of xylem in all categories of vascular plants. B. Advanced angiosperm families like Winteraceae & Trochodendraceae do not have vessels. C. Sieve tubes & companion cells are ontogenetically related & are called sister cells. D. The cytoplasm of a mature sieve tube occurs in the form of a thin-living layer along the inner side of cell walls.

Identify the statements as true(T) or false(F). A. Xylem fibres are the components of xylem in all categories of vascular plants. B. Advanced angiosperm families like Winteraceae & Trochodendraceae do not have vessals. C. Seive tubes & companion cells are ontogenetically related & are called sister cells. D. The cytoplasm of a mature seive tube occurs in the form of a thin-living layer along the inner side of cell walls.

Pariental placentation is foiund in the memebers of I family cucurbitaceae II family solanaceae III family bracssicaceae IV family Legumionosae

The acidic character of dioxides of memebers of oxygen family decreases in the order

Beryllium differs from rest of the memebers of group-2 in many characteristics. Explain with suitable examples to support this statement.

Memebers of Phycomycetes are found in (i) aquatic habitats (ii) on decaying wood (iii) moist and damp places (iv) as obligate parasites on plants. Choose from the following options.

Memebers of Phycomycetes are found in (i) aquatic habitats (ii) on decaying wood (iii) moist and damp places (iv) as obligate parasites on plants. Choose from the following options.1.None of the above, 2.(i) and (iv), 3.(ii) and (iii), 4.All of the above

Memebers of Phycomycetes are found in (i) aquatic habitats (ii) on decaying wood (iii) moist and damp places (iv) as obligate parasites on plants. Choose from the following options.1.None of the above, 2.(i) and (iv), 3.(ii) and (iii), 4.All of the above