Yah it’s a Go phase because of the cell cycle.
Answer: hydrosphere, cryosphere, geosphere
Explanation:
The purines have two rings in their structure while the pyrimidines have hust one
Answer:
Keystone species have low functional redundancy. This means that if the species were to disappear from the ecosystem, no other species would be able to fill its ecological niche. The ecosystem would be forced to radically change, allowing new and possibly invasive species to populate the habitat.
Explanation:
Compartmentalization! This allows some reactions to occur in separate areas of the cell without affecting the other parts.
<span>There are certain organelles that cells need to survive such as motochondria!</span>
