An enzyme is a biological molecule that acts as a catalyst in many reactions. They speed up chemical reactions especially the reactions inside living organisms. An enzyme is made up of amino acids. They are known to be very efficient catalysts. Hope this answers the question!
Answer:
oxygen gas
Explanation:
because oxygen is needed for life on Earth
I believe the correct answer from the choices listed above is option B. It is sand that is the most permeable. It can be proved by the value of the <span>Permeability variation where send has the highest value of 5.0. Hope this answers the question. Have a nice day.</span>
<span>Many sexually active american adolescents fail to avoid pregnancy because they are not educated on contraceptive methods. </span>
