BIOA02H3 Lecture : Ecosystems and Global Ecology
43
BIOA02H3 Full Course Notes
Verified Note
43 documents
Document Summary
earth is a closed system with respect to matter. earth is an open system with respect to energy. energy is primarily from the sun; continual. Intertropical convergence zonewarm winds come in, rise, release water, and air currents rise into atmosphere: land www. notesolution. com, cycling occurs through organisms, through ground water, the terrestrial land cycles. solar energy is the main sources of energy for most of organisms reproduction: gross primary productivityrate at which energy is incorporated into photosynthesis. does not produce energy, but transfers energies into usable forms that are needed by organisms. net primary productivityphoto-synthesisers harness some of the energy they receive from the sun, the rest is left for the herbivores or primary consumers. where areas are dry, photo-synthesisers are less likely to live. primary production tends to be higher near the equator.
