The geologic time scale is organized into eras, and the eras are organized into periods.
Answer:
it provides energy for chemical reactions
Explanation:
enzymes are biological catalysts which speeds up a chemical reaction without changing itself.
as like catalysts providing activation energy for the reaction enzymes provides energy for a reaction
<span>Because the chloroplasts that actually photosynthesize are found in the tops of the onions - the part that is actually above ground. There's no reason for there to be chlorophyll in the onion skin itself because these grow underground :)</span>
Answer:
Hello!!
What two scientists are credited with establishing the structure of DNA?
The two scientists who are credited with establishing the structure of DNA are <u>James Watson</u> and <u>Francis Clark.</u>
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(C)rough because it cools so fast that air bubbles get trapped inside of the rock, and they will pop causing it to be rough