The key difference between microspore and pollen grain is that microspore is the small spore that develops into the male gametophyte in plants while pollen grain is the small grain that contains the male gametophyte.
Geology, Oceanography, Meteorology, Astronomy, are the four main branches. these are the studies of the
<span>earth's atmosphere and the processes that produce weather and climate conditions
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Evaporation is when it turns into water vapor.then condensation, when the water vapor condenses into water molecules or clouds. then precipitation when it rains/snows/hails what it does to come down. after that it starts back at evaporation.
<span>The cells of our organs change size as a result of physiological changes of situations like aging and diseases which come with it. Diseases put an extra workload on our body’s tissues and organs that cause the cell to get larger. Many cells grow larger as they undergo repair after inflammation and infection. Cancerous cells get larger because they are working hard dividing and increasing uncontrollably. </span>
I wrote a paragraph summing the importance of Carbon a while back, see if it helps find your answer. :)
Carbon is an element on the periodic table with the symbol C, and the atomic number 6. There are many reasons that carbon is vital to life on earth, not only to humans but to plants as well. First of all, humans are made of eighteen percent carbon. It is not only found in humans, it is also found in every organism currently known, including plants in a technological way. To plants, carbon flows inside of their cells. They need it to create glucose which then works as food. To humans, it's used in many science sets. It is used in a vast array of compounds including gasoline. Gasoline is what keeps motors around the world running, and it's made up of hydrocarbons with at least 5 carbon atoms each. It also aids the greenhouse effect, keeping the earth warm and habitable by human beings.