D- The digestive system breaks down your food and your circulatory system takes it throughout your body
If CO2 was in very small amounts then it would be the limiting factor of photosynthesis, this means the process will take place at a much slower rate because it is lacking one of the raw materials it needs for the process to occur. To find the optimum light intensity you really need all other factors to be at optimum levels or in abundance.
The answer, is bryophytes are also called pioneer plants.
i hope this helped you out :)
Answer:
The solid layer making up the surface of the Earth is the crust
Explanation:
Answer: ?
Explanation: Maxwell who?
