Which of the following is the most common abiotic pollinating agent?
1. | Insects | 2. | Birds and bats |
3. | Wind | 4. | Water |
The ovule of an angiosperm is technically equivalent to
1. megasporangium
2. megasporophyll
3. megaspore mother cell
4. megaspore
Which one of the following may require pollinators, but is genetically similar to autogamy?
(1) Geitonogamy
(2) Xenogamy
(3) Apogamy
(4) Cleistogamy
Flowers, which have single ovule in the ovary and are packed into inflorescence are usually pollinated by
(1) water
(2) bee
(3) wind
(4) bat
Functional megaspore in an angiosperm develops into
(1) ovule
(2) endosperm
(3) embryo sac
(4) embryo
A dioecious flowering plant prevents both
(1) autogamy and xenogamy
(2) autogamy and geitonogamy
(3) geitonogamy and xenogamy
(4) cleistogamy and xenogamy
The morphological nature of the edible part of coconut is
(1) perisperm
(2) cotyledon
(3) endosperm
(4) pericarp
Attractants and rewards are required for
(1) anemophily
(2) entomophily
(3) hydrophily
(4) cleistogamy
In majority of angiosperms
(1) egg has a filiform apparatus
(2) there are numerous antipodal cells
(3) reduction division occurs in the megaspore mother cells
(4) a small central cell is present in the embryo sac
Pollination in water hyacinth and water lily is brought about by the agency of
(1) water
(2) insects or wind
(3) birds
(4) bats