There are a few plants that capable of becoming heterotroph. A heterotroph plant will become carnivorous that will try to lure and devour other organisms (mostly insects). The main purpose of the carnivorous plant is to gain important nutrients(like nitrate or phosphate) that important for the plant grow.
The condition that would favor this organism being heterotrophic would be where the soil nutrient is extremely poor so that the plant needs to gain it from another source. If the soil is rich in nutrient the autotrophic plant has an advantage because it doesn't need to make the unnecessary structure like heterotropic plants.
Salt marshes are affected by numerous things but the primary influence is "Tidal Flow".
It's a solid because there are no liquids or gases in it
Cell membrane pinches together in the middle. Cytoplasm and organelles are divide.
Less and increase I think is the correct answers