You're right! It is the first one, energy and matter within living organisms
Answer:
Founder effect.
Explanation:
Founder effect is a case of genetic loss due to an event in which a small subset of individuals of a population becomes isolated from a larger population. As the problem states, this population will never represent the diversity existing in the original larger population, and without the opportunity to interbred with a different population, this group will become distinct.
One of the reported outcomes of the founder effect is the explanation of the higher prevalence of some genetic disorders in specific populations.
Radiation can cause plant cells to mutate and change from an original population
<u>Answer</u>:
Option 1.Eukaryotic cells first seen
Option 5. oxygen builds up in the atmosphere
<u>Explanation</u> :
- The name <em>Proterozoic eon</em> is derived from a Greek word which means earlier life.
- This eon represents the time just before complex life started proliferating on earth.
- One of the most important events that took place during this eon was <em>build up of oxygen in the atmosphere</em>.
The fossil evidence also shows the occurrence of <em>advanced single-celled eukaryotes.</em>
<em>So the events that define the Proterozoic eon are eukaryotic cells first seen and oxygen build up in the atmosphere. </em>
