D and they were invented by Otis Frank Boykin
Answer:
B
Explanation:
In a command Economy, 1 is right. 3 and 4 are plain Rubbish.
The exact reproduction of an individual from cellular tissue is called cloning.
Cloning is a scientific technique that is used to produce identical copies of an individual having similar genetic information.
In this process, a complete cell, tissue, gene, even an entire organism can be cloned.
A clone can be produced either by artificial or natural methods.
In nature, some unicellular organisms such as bacteria produce multiple copies of themselves by means of asexual reproduction.
The first ever human clone was named Eve in December 2002.
If you need to learn more about cloning click here:
brainly.com/question/2654916
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It may be perfectly healthy that their newborn is sleeping this long so unless they start displaying other strange symptoms that cause concern, there is no need to worry. They could suggest that they are concerned to the midwife if they feel anxious, to get a professional opinion.