Answer:
A pure substance containing only one kind of ( atom )
Explanation:
Since it is one atom it is an element. An element is a pure substance that cannot be separated into two materials unlike a compound. This makes the substance pure. Like melting or cutting a gold bar into gold nuggets. It's still gold but it isn't the same shape but same density.
Hope this helps
- massmaster34
The two DNA strands are held together by hydrogen bonding between the bases on the different strands; therefore, all the bases are on the <u>inside of the double helix</u>, and the sugar-phosphate backbones are on the <u>outside.</u>
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The two strands are held collectively via hydrogen bonds between pairs of bases: adenine pairs with thymine, and cytosine pairs with guanine.
Covalent bonds arise inside every linear strand and strongly bond the bases, sugars, and phosphate groups (each within each thing and between additives).
Hydrogen bonds occur among the two strands and contain a base from one strand with a base from the second in complementary pairing.
Learn more about Hydrogen bonds here: brainly.com/question/1420470
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Answer:
The answer is 7 years to complete a full cell cycle.
Explanation:
7 years.
