The answers are:
1. The dependent variable is distance as it varies with the reading time interval of 30 minutes.
2. The independent variable is the elapsed time with a fixed interval of 30 minutes.
3. Natalie had run approximately 8 Km in 40 minutes, marked in the graph. So she must have run, 15-8=7 Km after 40 minutes.
4. To calculate: Average speed, Given: Total distance = 15 Km, Total time elapsed = 150 minutes.
Time in hours will be 
Answer:
scientific consensus changed as scientists learned more about organisms.
Explanation:
The classification system for organisms has changed from seven levels to eight level of classification system because scientists learned more about organisms. This new learned information allow scientists to change the existing classification system. When the scientist find new species that may have to change classification systems in order to accommodate them and placed them accurately in the classification system.
The cell membrane protects the inside of the cell from the outside world.
The cell wall protects the plants inside of the cell from the outside world.
Tr
One allele from each pair
