Answer:
The procedure is present below.
Explanation:
Take four pots having mint plant with same sizes and then apply 2% salt to pot no.1, then apply 5% salt to pot no.2, apply 10% salt to pot no.3, and apply 15% salt to pot no.4. After a 1 week or 2, see the growth of the mint plants. You will notice some mint plants are not effected to salt concentration because they are present in low quantity whereas some plants experience stunted growth due to higher concentration of salt which is unbearable for the mint plant.
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<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.
Out of all of the choices to be made, the Archaea and bacteria both can keep their DNA in the form of a nucleoid in common.
The answer is gel electrophesis
