The answer is C anatarctic fish to freezing, due to antifreeze proteins in their blood
Answer:
c) Because enzymes are proteins, they have a very specific order of amino acids that make up their structure (including the active site), meaning that only one key can fit in. The active site, or "lock" will recognise the substrate or "key" and will only let that one in and therefore can only catalyse a specific reaction.
b) the transcription process delivers information from the DNA to the protein-building machines.
Explanation:
I'm sorry I could only these question, I don't understand 3 a) question, hope this helps!
Fishes and worms are diffrent so in other words there systems such as reproduction system are not the same because they will not be able to mate
