Complex organisms need cells that can perform many different functions. they need to be supported on a cellular level. Without specialized cells you they won't be able to perform different functions.
Answer:
The growth of the plants is the dependent variable, the stuff added to each plant is the independent variable, the plants that don't receive treatment/other stuff are control variables.
Answer:
What is this turtle's favorite food?
Is this the most common species of turtle in this region of the ocean?
Explanation:
The first and second questions can be tested and explanations can be proposed based on scientific inquiries/findings into
i. What food is its favourite: This can be done by checking out its anatomy; the stomach and trying to find out the food it consumes.
ii. This can also be done using sampling methods to know the types of species and the most common of them all.
