The function of the semi permeable membrane is to allow substances to diffuse (transport) across it, because its only semi permeable the substance are able to cross. If it was a non permeable membrane it wouldn't allow the transport of substances.
The answer would most likely be secondary succession, because primary succession already occurred the first time things moved in.
The earth-moon relationship is unique in many ways. It is the largest moon in the solar system relative to its host planet. The relative size between theearth and moon are so close, some refer to it as a binary planet system. As it is simply a a relationship between a planet and its moon, the system is called a binary system.
<span>During each Krebs cycle, eight reactions should occur. As the reactions happen, the energy currency of the cell, adenosine triphosphate, known as ATP, is made.
</span>