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saltytaetae
22.06.2021 •
Biology
Some structures in the eye are listed. 1 cornea 2 iris 3 lens 4 retina Which structures contain light receptors?
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Ответ:
Ответ:
Answer and Explanation:
Chemotaxis occurs when an organism moves toward a certain direction in response to a chemical.
Pollen is essential for the reproduction of plants because it produces a pollen tube that moves the sperm cells to the ovules that are located in the interior part of the flower. The pollen grains, produced in the anthers of a plant, contain the male sex cells that will be transferred. Chemotaxis plays a central role as it is a process in which chemical extracellular signals enable the movement of the pollen grains that will eventually enable plant reproduction.