The conversion of light energy into chemical energy is dependent on the substance chlorophyll
I would say true. I say this because there have been times where scientists find out that there are better ways of performing experiments, or found that certain materials work better for certain tasks. (Especially true in medicinal fields!)
The OECD found that the responsiveness of housing supply to demand in the UK was the weakest among developed countries, due in large part to green belt policies. The green belt concept was first introduced for London in 1938 before the 1947 Town and Country Planning Act enabled local authorities to designate the status themselves. The policy was introduced to contain urban sprawl following huge post-war housing developments, and expanded greatly between 1951 and 1964. Since 1979, the green belt has doubled to cover 13 per cent of land in England (while only 2.3 per cent is covered by buildings).
The independent variable is the caffeine.
it controls the bpm.
Answer: (idk if i chose more than 1)
I believe its the Last option (optional A)
Explanation:
it gives structures for reproduction, immune system, hormones, and protection of cells
