Single celled organisms exchange gases directly across their Cell membrane.
<span>As time goes on the number of T-cells "Decrease in Number"
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Answer:
Measure your heart rate while lying down, while sitting down, and while standing. How does your heart rate change with body position?
Answer:
- Congress passed the Clean Water Act into law.
- The National Environmental Policy Act was passed, which led to the formation of the EPA.
Explanation:
