A cell membrane. Cell membranes are phospholipid bilayers (a.k.a 2 layers of phospholipids)
A heterotroph is an organism that cannot produce its own food. It has to eat/ consume other organisms to sustain its self. An omnivore is an animal that eats both plants and animals. It is a heterotroph because it must eat to live. Same with a carnivore, just that it only eats meat.
Answer: higher water potential
Gregor Mendel was the "father of modern genetics" and helped disprove the blended theory of inheritance.