Treppe is the phenomenon that results in a progressive increase in the force generated with repetitive stimulation.
A phytoplankton population would be affected by these changes by increasing the population of the phytoplankton. Low temperature of the ocean would allow for the phytoplanktons to bloom or reproduce. Therefore, high temperatures would slow down growth. This is because when water is warm there would be less mixing between the water layers and the nutrient rich water.
Club mosses, horestails and ferns are types of vascular seedless plants.
These types of plants reproduce through spores rather than the fertilization of seeds. The weight of spores is much lighter than that of seeds. These plants also require ample water for fertilization. The combination of light wind and moisture that is needed for reproduction means that you will often find these plants in damp or wet areas. Thinking of how mosses and horsetails are found in wetter areas will help you to remember this.