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What does syngamy and triple fusion represent?
Syngamy represents generative fertilisation Triple fusion represents vegetative fertilisation.
Syngamy represents generative fertilisation
See lessTriple fusion represents vegetative fertilisation.
Male gametes in angiosperms are formed by the division of which cells?
Generative cell divides to form two male gametes.
Generative cell divides to form two male gametes.
See lessWhich angiosperm lives underground? How does it get nourishment?
A small orchid lives underground. It has mycorrhizd association which helps it in obtaining nourishment frog decaying organic matter.
A small orchid lives underground. It has mycorrhizd
See lessassociation which helps it in obtaining nourishment frog
decaying organic matter.
What is the venation type in dicots and monocots?
Types of venation found in plants are Dicots Reticulate venation Monocots Parallel venation.
Types of venation found in plants are
See lessDicots Reticulate venation
Monocots Parallel venation.
Write the parts of female gametophyte of angiosperm.
Female gametophyte has one oospore or egg and helping cells or synergids for attracting the pollen tube.
Female gametophyte has one oospore or egg and
See lesshelping cells or synergids for attracting the pollen tube.
Which part develops into fruit in an angiosperm?
Fruit develops from the whole ovary of a pistil.
Fruit develops from the whole ovary of a pistil.
See lessThe embryo sac of an angiosperm is made up of
Embryo sac of angiosperm develops upto 8 nuclear state prior to fertilisation. There is a 3-celled eg apparatus, 3 antipodal cells and 2 polar nuclei.
Embryo sac of angiosperm develops upto 8 nuclear
See lessstate prior to fertilisation. There is a 3-celled eg
apparatus, 3 antipodal cells and 2 polar nuclei.
In which plant coralloid roots are present?
Cycas have coralloid root in which nitrogen-fixing cyanobacteria is present.
Cycas have coralloid root in which nitrogen-fixing
See lesscyanobacteria is present.
How are conifer needles helpful in soil erosion?
Conifer needles fall down and cover the soil and absorb rain water.
Conifer needles fall down and cover the soil and absorb
See lessrain water.
From where ephedrine is obtained? What is its use?
It is obtained from Ephedra, a gymnosperm. Ephedrine is used in curing respiratory diseases in humans.
It is obtained from Ephedra, a gymnosperm. Ephedrine is
See lessused in curing respiratory diseases in humans.