A. Warm air rises and takes heat with it; eventually it cools and sinks
<h3><u>Explanation;</u></h3>
<em><u>Heat transfer involves exchange of heat or thermal energy between two systems, </u></em>such that heat flows from the system with higher temperature to the one with low temperature.
Convection is one of the three types of heat transfer, others being conduction and radiation.
<em><u>Convection involves heat transfer in fluids. Heat is transferred by mass motion of a fluid such as water or air when heated and caused to move away from the heat source carrying thermal energy with it.</u></em>
The observation from the first question would tend to disprove the idea that evolution is based on b. inheritance of acquired characteristics because according to the experiment <span>theory of <span>adaptation was taken as a basis. The answer for the next question is definitely adaptation as at first every live -being should get used to its environment in order to develop and so on.</span></span>
As there are lots of mitochondria within the diagram it is very unlikely that diffusion occurs. only active transport occurs. cells within the root do not look like the diagram shown thus the statement I and IV are true.