Answer:
bacteria, archaea, eukaryota
I believe the last option is the correct one for the illustration of the single celled organism provides and the environment that it is found living in.
Answer:
herbivore-those kinds of animals that eat plants and trees only e.g elephants
omnivore-those animals that eat both meat and plants e.g baboons /humans
carnivore-those animals that eat meat only some call them the preditors e.g lions /cheetah
That should be the cell membrane. The cell membrane acts as a filter in and out.
If it has valves then it is a vein.
