The period of development that includes the creation of the zygote, attachment to the uterine wall, and continued cell division is known as the gestation period.
The gestation period for humans is normally 9 months. The spermatozoa fuse with the ovum to form a single-celled zygote in the ampullary region of the fallopian tube.
The germinal period is initiated with germinal stage and is followed by embryonic period.
Germinal period:
The fusion of spermatozoa with the ovum to form a zygote is called fertilization. The zygote then follows mitotic division and increases in cell numbers in the route of 2, 4, 16, 32… and so on. These series of divisions are known as cleavages. The embryo of up to 32 cells is called a morula. As more cleavages take place, the morula turns into a hollow ball of cells called a blastula. The blastula is enclosed in a protective sheath called a blastocyst. The blastula gets embedded into the endometrial lining of the uterus. This is called implantation. The blastocyst develops the placenta. The placenta supplies the essential nutrients required for the development of the embryo.
Embryonic period:
The embryo is connected to the placenta through the means of an umbilical cord. The transmission of nutrients to the embryo from the placenta occurs through the umbilical cord. When the embryo is developed it is called a fetus. The fetus remains generally in a head-down position toward the cervix through which it is transferred out from the uterus. This procedure of expelling the fetus out of the mother's body is commonly known as delivery.
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Answer:
<em>Justice Thurgood Marshall</em>
Explanation:
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Answer:
Whether humans are born good or evil has been debated by philosophers for centuries. ... Recent developmental psychology studies show there may be some natural “good” in humanity (or, to be more technical, that at least kids are capable of passing moral judgements at an earlier age than previously thought).
Explanation:
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This is called an Embargo.
This is an example of "transductive reasoning."<span>
Transductive reasoning is another element of the thinking of any child in the substage. Transductive thinking is a defective kind of rationale that includes making derivations starting with one particular then onto the next. It can prompt right or exact conclusions, yet it isn't ensured to do as such.
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