Answer:
D
Explanation:
because air is made up of nitrogen,carbon dioxide, Argon and oxygen
Answer:the right option is the second one because this species could be envolted just because of natural selection
Explanation:
Answer:
Explanation:
In a eukaryotic cell, almost all transcription occurs in the nucleus and translation occurs mainly at ribosomes in the cytoplasm. In addition, before the primary transcript can leave the nucleus it is modified in various ways during RNA processing before the finished mRNA is exported to the cytoplasm.