It is only one nuclei in a cell
Answer:
They have homologous structures because they have a common ancestor.
Explanation:
Answer:
Earthquakes
Explanation:
This would happen because we have devices such as seismographs to record the motion of the ground during an earthquake. Without that, we wouldn't know how big the earthquake is and how to prepare for survival.
Answer:
An example of a genetic disorder caused by a substitution mutation is sickle-cell disease. Hope this helps.