Answer:
Ronald Reagan
Explanation:
Ronald Reagan, originally an American actor and politician, became the 40th President of the United States serving from 1981 to 1989.
Answer:
The correct term to answer your question is Relational Database.
Explanation:
A relational database is a database specifically structured to recognize relations between stored items information and can be joined through common fields and the data can be easily stored in tables.
Germ layers form during the <u>germinal </u>period while organ systems mature during the <u>fetal</u> period.
The endoderm (inner layer), ectoderm (outer layer), and mesoderm are the three major cell layers that make up the germ layer. They arise in the early stages of embryonic development (middle layer).
The first two weeks following conception are known as the germinal stage, followed by the embryonic phase from the third to the eighth week, and the fetal period, which lasts from the ninth week until delivery.
A variety of procedures take place during the germinal stage to transform an egg and sperm first into a zygote and later into an embryo. The procedures include implantation, blastulation, cleavage, and fertilisation.
To learn more about Germ layers, refer
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