Answer:
4
Explanation:
There are 4 nitrogenous bases and they are Adenine, Thymine, Cytosine and Guanine (in RNA, Thymine is replaced by Uracil)
Answer:
Yes
Explanation:
Plants are the main source of food for humans
True. If (environmental) conditions were bad, the seed would not be able to survive :)
Answer:
blood colloid osmotic pressure
Explanation:
Explanation:
It should be converting water and carbon dioxide into glucose and oxygen.