Answer;
The amount of water and the temperature of the water and the angle the bottle was set in.
Explanation;
The two main variables in an experiment are the independent and dependent variable;
-An independent variable is the variable that is changed or controlled in a scientific experiment to test the effects on the dependent variable. A dependent variable is the variable being tested and measured in a scientific experiment.
The dependent variable is 'dependent' on the independent variable. As the experimenter changes the independent variable, the effect on the dependent variable is observed and recorded.
For example; the dependent variable in tornado in a bottle is the amount of water and the temperature of the water and the angle the bottle was set in.
More widely available food chain for other predators, an increase in population of the prey.
Answer:
Density is nearly 3 cabs per hectare
Explanation:
Given -
There are three three intertidal regions.
Area of each intertidal region is 
hectares.
Number of crab in the intertidal regions are as follows -
Intertidal region I - 7
Intertidal region I - 2
Intertidal region I - 6
Sum of crabs in all three regions is equal to
Total area of all three intertidal regions is equal to
hectares
Now density per hectare is equal to total population of crab divided by total area of all the three intertidal regions
Density 
Density is nearly 3 cabs per hectare
The answer is , because one cell divides to form two identical cells.
Answer:
<em>GMOs probably trigger disgust because people view genetic modification as a contamination. The effect is enforced when the introduced DNA comes from a species that is generally deemed disgusting, such as rats or cockroaches. However, DNA is DNA, whatever its source.</em>
Explanation:
<h3>I hope this helps!</h3>
