He is a heavy smoker. Mostly cases
of shortness of breath are because of heart or lung conditions. Your heart and
lungs are one of the carrier in transporting oxygen to your tissues and taken
away carbon dioxide, and problems with either of these processes affect your
breathing.
The answer is <u>B: a mutation inhibiting human immunodeficiency virus from entering the host cell</u>
Answer:
the dna for all organisms is commen because almost every living thing had dna from both there mother and father
Explanation:
Answer:
Base substitutions, deletions, and insertions
Explanation:
Answer: water and light
Explanation:
Abiotic factors are non living things that affect biotic factors for an example plants need water and sunlight to live which are abiotic factors
