Answer:
Concentration gradient.
Explanation:
Diffusion may be defined as the process of the movement of solute particles down the concentration gradient. This process does not require the expenditure of energy.
The main driving force in diffusion is the concentration gradient. The molecules generally move from its region of the higher concentration towards the region its lower concentration.
Thus, the correct answer is option (3).
Animals like a kangaroo rat has natrul defenses that help itself while living in the dune
Answer:x=mx+b so the chemical desolvant should be 12
Explanation:
Ecology because it explains plants and animals
The correct answer is "is a programmed mechanism of cell death".
Apoptosis by definition is programmed cell death. Apoptosis happens when the cell recognize irreversible damage weather in the plasma membrane, cytoplasm, organelles, or in the genetic material inside the cell. This is to prevent proliferation of damaged or mutant cells that can lead to the development of neoplasm.