ANSWER: the 3 different life spans found in plants are annuals, biennials, and perennials
Calcium is one of the most important minerals for the human body. It helps form and maintain healthy teeth and bones.
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Function
-Building strong bones and teeth.
-Clotting blood.
-Sending and receiving nerve signals.
-Squeezing and relaxing muscles.
-Releasing hormones and other chemicals.
-Keeping a normal heartbeat.
Answer:
I'm pretty sure the answer is natural selection.
Explanation:
Natural selection acts on phenotypic variations in populations.
Fermentation is the process by which a carbohydrate molecule is broken down into alcohol and carbon dioxide in the absence of oxygen. During this process, two molecules of ATP is produced. In the absence of oxygen, pyruvate formed from glycolysis will undergo fermentation process. During the process of fermentation, NADH from glycolysis will be converted back to NAD+. This is necessary in order for glycolysis to continue. Thus, fermentation regenerate more NAD+ and only a few molecule of ATP.
Adjacent cells can signal others by direct contact, while nearby cells that are not touching can communicate by the release paracrine signals.
Hope this helps,
Davinia.
