To germinate seeds all you need is moisture and warmth so B and C. After the seed sprout then you need the other two. Hope this helps
Annelids have closed circulatory system
Kinetic Energy, Potential Energy and a Heating Curve. Since Temperature is a measure of "Average Kinetic Energy", any change in temperature is a change in Kinetic Energy. Since temperature does not change during a phase change, the energy that is gained or lost is Potential Energy.
