The answer for this question should be c because an ecosystem is. Agrassland
Answer:most bones start off as cartilage models
Explanation:
In passive transport, substances simply move from an area of higher concentration to an area of lower concentration, which does not require the input of energy. Concentration gradient, size of the particles that are diffusing, and temperature of the system affect the rate of diffusion
1. Succession is how the vegetation changes through out the years like when a forest get on fire, once the fire starts all the trees will get burned and there will be nothing left but in a few years the trees will grow back up and that will be called succession.
