Channels, when they open, just allow the molecule to pass through. With a pump, it requires energy, and will move it in a certain direction. They move rapidly into the cell via protein molecules.
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Answer: Rainforests have an abundance of plants and animals for the following reasons: Climate: because rainforests are located in tropical regions, they receive a lot of sunlight. ... Canopy: the canopy structure of the rainforest provides an abundance of places for plants to grow and animals to live.
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Answer:
unaligned chromosomes that not equal to daughter cells
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The answer is C.
Living organisms that live in the littoral zones in the ocean are used to frequent changes in temperature and in the salinity of the ocean water. For an organism to survive in this environment, it needs to have adaptive features that will increase its survival. The littoral zone is divided into three zones, which are high, middle and lower littoral zones. Organisms living in high littoral zone have adaptive features that make them more adapted to desiccation due to the long hours of sunlight to which they are exposed. The organisms are usually exposed directly to the air or they can be enclosed in burrows.
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Answer:
photosynthesis takes place in chloroplasts, which contain the chlorophyll. Chloroplasts are surrounded by a double membrane and contain a third inner membrane, called the thylakoid membrane, that forms long folds within the organelle.
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