The plants were providing the necessary oxygen for the animals to breathe and the animals were serving as an aide in photosynthesis for the plants by producing carbon dioxide.
Prokaryotes have no nucleus therefore the prokaryotic chromosome or DNA is dispersed within the cell and is not enclosed by a separate membrane. In eukaryotes the chromosomes and DNA is located in the nucleus.
The body are digested by bacteria and thus recombines with soil and increase fertility of the soil !
The heart is superior to the stomach and inferior to the brain
Answer is (A) She needs to know the genotype of the second plant.