Answer:
It's C. Plants produce oxygen and nutrients via a process known as photosynthesis using water and carbon dioxide
Each population of a species have different genes.
Answer:
They are necessary for co-ordination.
Explanation:
The both systems brings about co-ordination, thought there are some basic differences between them. Many organs in an animals system have organs to carry out activities like locomotion, digestion, respiration and excretion. The activities of each organ system must be co-ordinated with those of other systems; and with conditions in the external and internal environments of the animal.
Unlike the endocrine system, the nervous system works rapidly. Messages are carried mainly as electric impulses along nerves triggering immediate response from target organs.
The hypothalamus is the important link between these two systems.
Answer:
Substitute the P-II promoter (makes RNA II) for one that is stronger, or mutate the P-I promoter to make it weaker.
The process is called diffusion