No, it is usually caused my moving water, such as heavy rain or rivers or oceans.
Answer:
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Explanation:
First nucleus in pollen grain divide to form generative nucleus and tube nucleus. the generative nucleus divide to form two sperm nuclei, while tube nucleus help in the development of pollen tube.
Answer:
zygote
Explanation:
gamates fuse and create zygotes
This control is called negative feedback. Mechanism of negative feedback. Each metabolic reaction or process is regulated by several enzymes. These enzymes control the rate of these reactions and thus are fundamental in maintaining homeostasis. In a negative-feedback pathways, the end product of a pathway binds to the allosteric site of the first enzyme, closing its active site and blocking the rest of the reactions.
