Water? That’s my guess I mean it kinda makes sense Imao
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.
C synthesize ribosomes would be the answer I think
Answer:
It is important as it tells if the object is stationary or in motion
Explanation:
Crossing over is important as it allows for variation in a species. Without crossing over or any other methods of providing genetic variation it would mean everyone would look the exact same.