A. The new knowledge is used to reevaluate the theory.
<span>When newer information is found on something, the theory is changed and updated based on the more reliable information. </span>
<span>C. Single events or several causes working together to produce extinction in a short period is referred to as mass extinction.
Example:
</span>Destruction of forests, mountains, and bodies of water to satisfy human needs result to the imbalance of nature which also give rise to global warming.
Animals and plants have lost their habitats. They lost their means to live. They lost their food sources and they suffer and die because of humans irresponsible acts.
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A diagram should accompanying the question.
Plant cells and animal cells have organelles or structures that are common to both and some that are unique.
Unlike animal cells, plant cells possess chloroplasts, vacuoles, and a cell wall. the chloroplasts are the hub for photosynthesis, vacuoles hold water or sap and the cell wall gives plant cells a definite structure.
Animal cells are typically smaller than plant cells. Both cells have cell membranes, nucleus, mitochondria and golgi apparatus.
It helps the plants make oxygen for us and it provides food for the plants through photosynthesis. It makes life possible on Earth by providing us light. Without light the Earth would be frozen.