Active transport differs from diffusion in that active transport 

The diagrams above are illustrations of an experimental set-up to demonstrate a type of tropic response in plants. The type of response demonstrated is

The conclusion drawn from the experiment in the diagram above is that

The odontoid process is found on the

A seedling was made to stand in a solution of red ink for three hours and a transverse section of the stem was examined under the microscope. The process being investigated was