The answer to your question is12
Answer: No
Explanation: Elodea or Paramecium live in fresh-water lakes and they are not adaptive to salt-water. Oceans are salty and the cells will lose water due to osmosis and eventually dry up and fall apart.
Answer:
it's either A or D I believe. it's most likely D
Answer:

Define Biosystematics ???

taxonomy based on the study of the genetic evolution of plant and animal populations.

Answer:
hmmmm check my explanation
Explanation:
it my be from many different mishaps
such as tsunamis, earthquakes, volcanic eruptions and more