The aorta, which arises directly from the heart
The variable that researchers manipulate is the independent variable.
The reason for this is because in experiments different manipulations are often introduced. The sole purpose of these manipulations is to see whether they will affect our independent variable and if they will change its value.
Answer:
Solar power is expensive and requires a large amount of space.
Explanation:
Answer:
carbon dioxide, Photosynthesis. Animals, plants, Oxygen, respiration. Decompose, combustion
Explanation:
Fill the blanks with those answers in that order
