The process is likely to be triggered by the formation of the layers. Zygote is the structure that forms when a sperm fertilizes an egg, the zygote then divides many times by the process of mitosis to form an embryo. That is, it forms two cells, then four, then eight and so on, up to the eight stage the cells are identical and are called embryonic stem cell, which then develop into any specialized cells type by differentiation, that the growing embryo needs, such as the nerve cells, blood cells, among others.
If a cell was to undergo all the activities, eg cell division my mitosis, it results in growth. When we were still zygotes, cell division happened by mitosis resulting in the grown ups we are now. Over division results in growth of cancer cells. And if the body exercises, Lymphocytes are produced more, resulting in more of them circulating in blood preventing disease attacks
Each of the two threadlike strands into which a chromosome divides longitudinally during cell division. Each contains a double helix of DNA.
<span>There are a number of differences between these organisms and these are as follows:
</span><span>1) Reproduction
</span><span>Amoeba: Asexual
</span>Paramecium: Sexual by conjugation<span>
Euglena: Asexual
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2) Nutrition
Amoeba: Heterotroph by phagocytosis
</span>Paramecium: Heterotroph by predation <span>
Euglena: Autotroph by photosynthesis and heterotroph by ingestion
</span>3) Locomotion
Amoeba: Pseudopodia
<span>Paramecium: Cilia</span>
Euglena: Flagella
Hope this answers the question. Have a nice day.
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Explanation:
The use of pesticides can dramatically increase crop production and ensure a higher quality of produce. However, pesticides are also toxic chemicals designed to kill agricultural pests, and some can cause problems if they are consumed by humans in large amounts. ... Residues of these drugs can also be hazardous to humans.