Answer:
45x7892
Explanation:
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Hello, Mohammed is experiencing the phase called REM or rapid eye movement phase of sleep. The REM phase is where we typically dream. Also associated with this are the activity of our eyes to which the phase was named after. Scientists believe that this eye movements happen because of our dreams.
bacteria also called germs are microscopic organisms not visible with the neked eye bacteria are everywhere both inside and out Side of your body bacteria can live in a veriety of environment from hot water to ice
The two types would be DNA and RNa
Following fertilization, the single-celled zygote undergoes cleavage, where it is then divided into numerous tiny cells. After 3 to 4 days of fertilization, the cleavage produces a 16 celled embryonic stage known as morula, which is contained within the zona pellucida.
After about 4-5 days of fertilization, cleavage produces a sphere mass of cells known as blastomeres, which is covered by a layer known as trophoblast and has a fluid-filled cavity in the center, known as blastocoel. The blastomeres then migrate inward, changing position and undergoing rearrangements. This is known as gastrulation.
Gastrulation then causes the development of three germ layers: ectoderma, endoderma, and mesoderma. The interaction of cells and the rearrangement of tissues and organs occurs only after the formation of germ layers.
