<span>The potato gene pool is being reduced.</span>
Social convoy
Social convoy refers to a group
of people who accompanies an individual on the journey of life. A social convoy
provides personal, familial, cultural, and even professional supports for an
individual. Family members usually comprise a part of social convoy and its
makeup changes over time.
<u>Answer:</u>
Scientist think colonies of Cyanobacteria called stromatolites were responsible for the introduction of oxygen into earths atmosphere is true.
<u>Explanation:</u>
- In primeval earth’s atmosphere, stromatolites (colonies of Cyanobacteria) are believed to have increased the level of oxygen by their photosynthesis process.
- These are the first known organisms that started photosynthesis process and produced the oxygen to the earth’s atmosphere.
- There is a theory that, these organisms produced oxygen in the environment and the organism disappeared that couldn’t live in the atmosphere with the oxygen.
- Scientists gave this a name called as “great oxygenation event”.
