Answer:
Bacteria
Explanation:
There are two kinds of cells found in/on the human body that lacks nucleus
- Red blood cells
- Bacteria
Since the material observed under the microscope was scraped from under the finger nails and there was no indication of broken skin, it is likely that the observed cells are bacteria.
One in which the environment undergoes sudden, drastic changes.
Reason: Because with sexual reproduction, variation is introduced to the species. If a sudden change happens then it is hoped that some of the group would carry characteristics better equipped for the environment and thus survive. In asexual, there is no variation, so if a change comes is could likely kill the whole species.
Answer:
an epidemic of an infectious disease that has spread across a large region, for instance multiple continents or worldwide, affecting a substantial number of individuals.
Answer:
To identify organisms and to show relationships.
Explanation: