<span>Pollen Grains is also known as male gametophytes of a flowering plant. They represent the male portion in the reproductive process. Pollen grains are tiny bodies which get transported through wind, insect or other natural agents, joins with the female parts of the flower through the process of fertilisation, resulting in the formation of seeds.</span>
Eurythermic: (of an organism) able to tolerate a wide range of temperatures.
Stenothermic: <span>A </span>stenothermic<span> is a species or living organism only capable of living or surviving within a narrow temperature range.
</span> Euryhaline<span>: (of an aquatic organism) able to tolerate a wide range of salinity.
</span>Stenohaline: <span>(of an aquatic organism) able to tolerate only a narrow range of salinity.
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Answer and Explanation: So the plant/algae take nitrogen from the topsoil by captivating through roots, such as the Glutaminic Acids, ammonium ions, or nitrate ions. Plants can't necessarily get nitrogen from instant air, however, plants obtain nitrogen through a natural process.
Hope this helps! :-)
Ovulation is the process in which eggs are released from the ovary.
