Selective permeability is the cell wall being particular about what they let in and out of the cell. It is important because if the cell just let any old molecule inside, it would be letting potentially harmful things in.
Answer:
Cellular respiration is a metabolic pathway that converts nutrients into energy (ATP) that organisms need to live. ... The oxygen you breathe is used to break down the nutrients you consume through food in order to make ATP, while carbon dioxide and water are generated as waste
Explanation:
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Answer:
Explanation:
You have external defense systems, which include your skin, tears, mucus, saliva, stomach acid, cilia (small hairs) and helpful bacteria. ... The skin stops pathogens from entering the blood, at least when you're not bleeding. The tears, mucus, and cilia trap them and help push them back out of your body.
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The answer is a, amino acids.
They have a greater amount of solar energy, which produces more evaporation than higher latitudes. That warm air rises and eventually condenses into clouds and thunderstorms.
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