Answer:
<em>Hello There the correct answer A change in the size of a population over a given period of time is that population's The growth rate is the birth rate minus the death rate. Over time, the growth rates of populations change because birth rates and death rates increase or decrease. Growth rates can be positive, negative, or zero.</em>
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Answer:
They store water
Explanation:
Plant cells have a large central vacuole because a plant cells requires much more water to function. Vacuoles in animal cells can store water, but they mainly store waste or nutrients
Explanation:
The early atmosphere was mainly carbon dioxide and water vapour. Water vapour condensed to form the oceans. Photosynthesis caused the amount of carbon dioxide to decrease and oxygen to increase.