Answer:
Diploid microspore mother cells divide by meiosis to form four haploid microspores. Each microspore develops into a pollen grain by mitosis.
Explanation:
Pollen grains contain the male gametes of a sexually reproducing plant. Pollen grains are haploid cells in nature produced by the meiotic division of microspore mother cells (located in the anther). The meiosis of these diploid (2n) microspore mother cells give rise to four haploid microspores. This process in plants is called microsporogenesis.
Each haploid microspore (n) develops into pollen grain called microgametophye (bearing male gamete) via mitotic division. During the pollen grain formation, a wall is formed around the microspores.
What shell are we trying to compare to
When an organism is sessile, or slow moving it might be very hard for that organism to find food, shelter and a reproductive mate.
One of many solutions to the problem of finding a mate is hermaphroditism.
When an organism is hermaphroditic it means that it has the reproductive organs of both sexes and that it is able to self-fertilize.
This solution, although sometimes very useful, if used all the time can lead to inbreeding and have negative effects on the genetic diversity of the population. Therefore, hermaphroditic organisms self-fertilize only in cases where there is no available mate to be found.
The inorganic portion of soil from rocks getting weathered by chemical and physical means to form soils
Answer:
sugar and oxygen are the correct option