DNA is used for replication in cells, the replication is called Semi conservative. Tis is when two strand of DNA are used as a code for a new DNA molecule.
<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.
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<span>C. The size and shape of their beaks</span>
Answer:
D) Chromosomes can align in metaphase I in multiple possible arrangements in a process called independent assortment.
Explanation:
