The hotspots are regions, where the plumes of magma are present just below the lithosphere. The plume of the magma is the particles of the volcano and the gases, which is erupted during the volcanic eruption. It is generated by the fragmentation of the magma. Once, it reaches the lithosphere, it get spreaded laterally.
The plumes at the hotspots are present just below the tectonic plates, a high temperature r heat and the low pressure causes the rocks present in the lithosphere to melt resulting in volcanic eruption. At hotspot, the melting of rock takes time, sometimes it is very slow, due to the presence of various tectonic plates. Hence, the plumes can remain stationary for a very long period of time without erupting.
So, the first blank can be filled with Lithosphere and the second blank can be filled with Stationary.
<span>In human cell mitosis, each daughter cell will have the same number of chromosomes as the parent cell, which is 46 chromosomes. If the parent cell is diploid, it has two sets of chromosomes, or a total of 46. If it is haploid, such as sperms and eggs, they have one set of chromosomes, or just 23.</span><span>
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Cell theory was given by Schleiden and Schwann in the year of 1839 which gave a basic idea about the cells and its relationships with an organism. The research on plants were done by Schleiden and on animals were done by Schwann.
<h3><u>Explanation:</u></h3>
Theodor Schwann was a German physiologist and physician who made different contributions in the field of science. His discovery of Schwann cells on neurons, the pepsin enzyme in stomach as well as the cell theory are worth remembering. Theodor Schwann did his research on animals and saw that the animal bodies are made up of different cells and their products just like plants. So on 1839, along with Matthias Schleiden, he gave the cell theory which stated that all the living organisms are formed of one or more cells and they are the structural and functional units of living organisms. In 1950s Rudolf Virchow added that cells do arise from pre-existing cells only.
Mitosis is a kind of cell division that produces 2 daughter cells, which are genetically identical to both the other daughter cell, and also the parent cell
Before the parent cell divides, it duplicates all the DNA. With that being said, it means both daughter cells has the completely same chromosomes numbers and the types of alleles.
Different to another cell division, meiosis. Meiosis has daughter cells which has half of the parents chromosomes.
Therefore, the daughter cells will still have 60 chromosomes. The cells are said to be diploid.