<em> DNA replication needs to occur because existing cells divide to produce new cells.Each cell needs a full instruction manual to operate properly. So the DNA needs to be copied before cell division so that each new cell receives a full set of instructions!</em>
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<em>HOPE</em><em> </em><em>IT</em><em> </em><em>HELPS</em><em> </em><em>YOU</em><em> </em><em>OUT</em><em> </em><em>PLEASE</em><em> </em><em>MARK</em><em> </em><em>IT</em><em> </em><em>AS</em><em> </em><em>BRAINLIEST</em><em> </em><em>AND</em><em> </em><em>FOLLOW</em><em> </em><em>ME</em><em> </em><em>PROMISE</em><em> </em><em>YOU</em><em> </em><em>TO</em><em> </em><em>FOLLOW</em><em> </em><em>BACK</em><em> </em><em>ON</em><em> </em><em>BRAINLY.IN</em></h2>
Answer:
Explanation:
All hydrocarbons are apolar
They contain covalent bond(s)
Hydrocarbons contain only carbon and hydrogen atoms
Hyrdrocarbons held by london forces
True answer is d
While photosynthesis requires carbon dioxide and releases oxygen, cellular respirationrequires oxygen and releases carbon dioxide. It is the released oxygen that is used by us and most other organisms for cellular respiration. We breathe in that oxygen, which is carried through our blood to all our cells.
Answer:
Explanation:
porque una persona con dos alelos normales presentará un fenotipo normal, mientras que si las dos copias del gen son el alelo mutado que producen una enfermedad, el fenotipo expresará los síntomas característicos de esa enfermedad.
