Members of the kingdom Animalia are required to consume other organisms, whether it be a producer (grass, leaves etc.) to other organisms to obtain energy. Plants perform photosynthesis but are not in the Kingdom Animalia. Protista is the Kingdom that would most likely have organisms that can obtain energy by photosynthesis (Alge) and can consume or decompose for energy (amoebas).
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Meiosis results in daughter cells that are genetically unique from each other and from the parent cell.
The one satellite has all the momentum before they connect, and then afterwards they share it.
Two things that INCREASE population, would be an increase in leisure space. Another is if the area is sustainable for life. Two things that would DECREASE population, would be a scarcity of any required resources. A decrease in space, and not a sustainable area.