Answer:
The answer is a codon. A codon is in a mRNA while an anti-codon is in a tRNA.
Answer:
The third line of defence against pathogenic invasion is the adaptive immune response, which has two key qualities: It is specific (it can differentiate between specific microorganisms and respond accordingly) It is adaptive (it can produce a heightened response upon re-exposure - in other words, it has memory)
Explanation:
Answer: The sun
Explanation: Primary producers obtain their energy via the sun through the process of photosynthesis.
Answer:
convection within the atmosphere
