B goes to the second one A goes to the first one D goes to the third one and C goes to the fourth one I believe. I hope that helps
Answer:
They would freeze and it would be hard to find food because they are not accustomed to the different climate. They would also be easy prey because of the environment change they are not equipped for.
I think b would fit more as the mitochondria, d would be the endoplasmic reticulum, and e would be lysosomes
I think its C. global warming
because the other one directly threats aquatic bio diversity while global warming doesn't just affect aquatic biodiversity
The sun because of photosynthesis in plants, then herbivores who eat plants then the carnivores who eat the herbivores who ate the plants.