The results will most likely be valid because the scientists kept getting the same results after REPEATED experiments. If they just conducted one experiment then they would not have been sure if what happened was a fluke or if another thing would happen after another experiment.<span />
It must be nervous system...
nervous system recieves and sends electrical signals throughout the body....
They show which parts of the brain are involved in specific activities.
If producers were removed from an ecosystem eventually all organisms would die because they all rely on the producers for food and energy
Answer:
In many plants, stomata remain open during the day and closed at night. Stomata are open during the day because this is when photosynthesis typically occurs. Hope this helps. : )
Explanation:
