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what are infructescences pseudofruits and parthenocarpic fruitsinfructescences are aggregated fruits created from inflorescences aggregated flowers
are fruits always the flesh part of the fruits is the edible part of the onion a fruitin some so-called fruits the actual fruit is not the flesh part
q the half life of radon is 38 days calculate mean lifehalf life period hlp tfrac12 06931 lambda 06931
how are fruits formedthe fecundation in angiosperms triggers the release of hormones that act upon the ovaries the ovary wall then makes into a fruit
q what is pair production and pair annihilationpair productionthe conversion of a photon in to an electron-positron pair on its interaction with the
q what percentage of a given radioactive substance will be left after 5 half -life periods the residual part of radioactive substance frac12
q what is the use of control rods mention any two control rodsthe control rods are utilized to control the chain reaction they are extremely good
what are cotyledonscotyledons or seed leaves are structures formed by the embryo of angiosperms to absorb nutrients from the endosperm and to keep
how different are the endosperm of gymnosperms and the endosperm of angiospermsin gymnosperms the endosperm is haploid n it is known as primary
what is dichogamydichogamy is the phenomenon of the maturation of female reproductive structures of the plant in a dissimilar period to the
what is the difference between self pollination and cross pollination which of these two modes of pollination contributes more to the plant
how many cellular nuclei does the pollen tube of angiosperms have what is the ploidy of each of these nucleithe pollen tube that is the mature male
how are the male gametophytes and the male gametes formed in angiospermsin the anthers of every stamen there are pollen sacs within the pollen sacs
what is pollination what are the main forms of pollinationthe process in which pollen grains the male gametophytes of phanerogamic plants reach the
what are the androecium and the gynoecium what are the other structures of flowersandroecium is the set of male reproductive structures of flowers it
what are the major morphological differences between monocot plants and dicot plantsthe main differentiation criteria among monocots and dicots are
what are the two main groups into which flowering plants are dividedangiosperm plants are separated intoa monocotyledonous monocots andb
what are angiosperms the flowering plants what is the major feature that distinguishes them from the gymnospermsflowering plants have flowers and
plot the data as a suitable graph join the points with the best-fitting smooth curvetemperature oc51011131719 time taken for eggs to
what is pollenpollen grains are the male gametophytes of the phanerogamic flowering plants thus within the pollen grains the male gametes of these
what is the life cycle of the gymnospermsas all plants they show a diplobiontic life cycle ie alternation of generations with diploid and haploid
in which areas of the globe is gymnosperm abundance noteworthy these plants are the typical vegetation of cold regions as the taiga or boreal forest
what is the evolutionary importance of the emergence of seeds in the plant kingdomthe evolutionary significance of the seed is related to the plant
how different are gymnosperms from bryophytes and pteridophytesgymnosperms are not cryptogamic as bryophytes and pteridophytes are they are
what are the main divisions and representing species of the gymnospermsthis group of plants can be divided into conifers pine sequoia cypress that