STD 11 - 3. Plant kingdom — NEET STD 11 Science — Question

Protista contains

Funaria may be differentiated from Pinus by the character

Mucor is a

Which of the following statements about pteridophytes is true ?
(i) They are the first terrestrial plants to possess vascular tissues.
(ii) It found in cool, damp, shady places though some may found in sandy soil conditions.
(iii) The main plant body is a gametophytic which is differentiated into root, stem and leaves.
(iv) The sporangia produce spores by mitosis in spore mother cells.
(v) Spores germinate to give rise to prothallus.

Which of the following characters for leaves are not correct from given characters ?
(i) In peas, leaves are modified into tendrils for climbing.
(ii) In cacti, leaves are modified into spines for defence.
(iii) The fleshy leaves of onion and garlic store food.
(iv) In Australian acacia, rachis expand, become green and synthesise food.
(v) Leaves of certain insectivorous plants such as pitcher plant, venus-fly trap are also modified leaves.

Which of the following is not an influence of auxin?

Which must be preserved in an ecosystem, if the system is to be maintained