D -<span>the start of glaciation and climatic changes</span>
B. adh (alcohol dehydrogenase)
The cells of the fish might swell and burst and then die.... i think
Answer:
D.singular circular chromosome
Explanation:
a eukaryotic cell has a nucleus whilst prokaryotic doesn't, whcih means the DNa is not housed and is built in a single circular strand. eukayotes have chromasomes or strands of dna