<u>The eukaryotic cell differs from the prokaryotic cell in the following ways:</u>
- The eukaryotic cells have a <em>membrane-bound nucleus</em>, whereas the prokaryotic cell has a <em>non-membrane bound nucleoid</em>.
- According to the size, the eukaryotic cell is <em>large</em> when compared to the prokaryotic cell.
- The eukaryotic cell undergoes cell division through a process called <em>mitosis or meiosis</em>, whereas the prokaryotic cell divides through <em>fission or budding.</em>
- Membrane-bound <em>cell organelles</em> are present in eukaryotic cells whereas absent in a prokaryotic cell.
- The process of <em>gene expression</em> occurs in two different cell organelles (nucleus and cytoplasm) in the case of eukaryotic cells, whereas in the prokaryotic cell it occurs in the cytoplasm.
Answer:
A. Species that remained after the extinction were able to radiate, new adaptations arose, and these adaptations produced the diversity seen today.
Explanation:
When species went extinct they also left niches that could be occupied by "new" species; new places to live, places to be filled in the food web and different relationships to be formed. The wide availability of resources made organisms to radiate leading to a "new" diversity of shapes, sizes, and lifestyles.
B. Species that have gone extinct were able to re-evolve from the ancestors that survived the extinction. If you are extinct you are gone forever.
C. Species that remained after the extinction were unable to speciate. Therefore, the number of species on Earth today is lower than the number of species present just before either extinction. The fossil record proves that species have changed over time and the diversity has changed over the history of Earth.
D. Species that remained after the extinction represented all of the lineages that were present before the extinction event. Therefore, extinction did not change the diversity of lineages. Again, the fossil record is evidence that lineages have changed over the history of the Earth.
Social Dominance - this is the physical dominance of one individual over another
The phenomenon described in the question exhibits Convergent evolution. The correct option among all the options that are given in the question is the last option or option "D". The meaning of convergent in this case is coming together from various directions. I hope the the answer comes to your help.
