Plant Anatomy And Physiology - Study Mode
[#91] The tetraploid secondary nucleus after fertilization by a male gamete produces a pentaploid endosperm in which of the following plants?
Correct Answer
(D) Lilioideae
[#92] In some plants, the flower is modified in such a way that it looks like a female insect and attracts male insect. This modification is used for the pollination and occurs commonly in
Correct Answer
(A) orchids
[#93] The boundary layer of air over the green leaves with active microbes is known as
Correct Answer
(C) Phyllosphere
[#94] Consider the following statements and choose the correct answer: 1. Intense or strong light retards the growth of shoot 2. Shade plants are shorter and stockier than sun plants 3. Shade plants have dense covering of hairs while sun plants are less hairy 4. The stems of shade plants are taIler and more branched than that of sun plants
Correct Answer
(C) Only 1 and 4 are true
[#95] Consider the following statements regarding the vegetation of Rajasthan desert and choose the correct answer: 1. Sand community occupies a large area of Jaisalmer and near about areas 2. Gravel association at Bap to Jaisalmer consists of Boerhhavia diffusa, Cleome papillosa, Fagonia eratea, Aristidia mutabilis etc. 3. Except small isolated hills, the greater portions of Jaisalmer and Jodhpur of Rajasthan are covered by rocks 4. The common shrubs occurring in the sand, gravel and rock communities are Euphorbia nerifolia, some species of twining shrubs like species of Convolvulus, Sarcostemma etc.
Correct Answer
(C) Only 2, 3 and 4 are true