Answer:
I think D one would be
Explanation:
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Genetic fingerprinting is a tool used in analyzing body tissues or fluids, and in identifying a person.
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Answer:
undifferentiated; blood
Explanation:
Hematopoietic stem cells are undifferentiated cells that develop into blood cells.
<u>Answer:</u>
Approximately, the oldest stromatolites are 3.6 billion years old on earth.
<u>Explanation:</u>
- Stromatolites is not only oldest earths fossil but conspiracy in that they are singular visual portal in deep time on earth.
- It is defined as laminated accumulation structure that is they stick up above sea floor .
- Stromatolite buildings includes oldest fossils which are 3.5 billions old when the earth were too unfriendly to support life.
- The study of fossil age, evolutionary, method of formation are known as paleontology.
- These specimens are considered as old fossils which are around 3.4 to 4.1 billions years old.
