Humans and animals need oxygen to survive so oxygen in the atmosphere maintains life on earth for humans and animals to breathe to survive
Answer: Transcription
Explanation: Genes consist of sequences of molecules, called bases, in your DNA. During transcription, an enzyme called RNA polymerase “reads” your genes and copies the information onto molecules of messenger RNA.
all is correct . The role of the immune system is to protect the body from all what is strange about the the body this includes living organism or toxic chemical compounds ... In fact in all cases the different members of immune system recognize the strange thing by the spatial organization of its chemical composition . This is called antigen.
C. Food Web
The "arrows" show the transfer of energy from the sun to other organisms. Without it we would die!
