Is there anyway you can elaborate a little more so I can answer it more clearly? Thanks!!
Self-pollination occurs when the pollen from anther is deposited on the stigma of the same flower. Because cross-pollination allows for more genetic diversity, plants have developed many ways to avoid self-pollination.
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To perform tests that detect the presence of carbohydrates, lipids, proteins, and ... There are several chemical tests available for the identification of the major types of organic ... But if the glucose solution reacts differently from distilled water, the test can ... There are literally hundreds of tests available for biological molecules.
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Answer:
Photosynthetic organisms were making oxygen, but it reacted with the iron dissolved in seawater to form iron oxide minerals on the ocean floor, creating banded iron formations. ... The oxygen that is now in the Earth's atmosphere was not there at the beginning.
Explanation:
"Results and survival and reproduction of organisms best suited for their current environment."
