Answer:
True.
Explanation:
Yes, the lens of the eye will be more spherical when the ciliary muscles are contracted due to tension. When the relaxation occurs in the ciliary muscle , the zonular tension is increased, that causes the lens to be flatten and leads to decrease in optical power while on the other hand, when the ciliary muscle contracts, the tension in the equatorial zonular is increased which causes the central lens surface to become more rounded that leads to increases central optical power.
Answer:
oceans, lakes and rivers,groundwater, in wells and aquifers.
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Answer and explanation;
Health-care in the ancient world was very experimental and under researched. The ancient methods for health care was affordable only if the best health care was accessible when needed.
The healthcare in the ancient world had a lot to do with herbs and plants because this is what they knew. However they also learned from these and learned about the body and how it works and tried different things.
Predator and Prey relationships would have the most effect on an ecosystem's stability because they keep a limit number on the opposing population (ex. rabbit population can only get so high because wolves keep eating them / wolf population can only be so high because there is't enough rabbit to eat)
