Answer:
1. It was a control variable
2. Type of insulation
3. Temperature
4. Plastic lids <em>or </em>Water <em>or </em>Half Full <em>or </em>Direct Sunlight
Answer:
weakness of core muscle can lead to chronic back pain
Meiosis - the cells divide to produce 4 haploid cells
When guard cells lose potassium ions, water diffuses out of the cells by osmosis. As water leaves the cells, they become flaccid and less bowed, which closes the stomata between them.
