Answer: D. a genetic bottleneck
Explanation:
A genetic bottleneck also known as a population bottleneck is one that describes a sharp reduction in the size of a population caused by environmental events like in the above or caused by human activities.
Science can be used to address societal issues and to inform policies. Hope I Helped :)
It is system because bone nucleus and all the rest you put down are all a system structure in the body
The aquatic animals in the lake will likely suffer greatly or possibly die from the decrease in temperature because as the temperature plummets, the oxygen molecules will stretch farther apart so there will be less oxygen in the water.
