Answer:
As the variables are not given, let us help with general explanation on manipulated variable.
Explanation:
A manipulated variable is an independent variable. In a scientific experiment, an independent variable can be described as a variable which can change naturally or which is changed by the researcher to check its effect on the dependent variable. The dependent variable is the variable which is under study and being tested.
For example, to check the difference in photosynthesis rate by light, the amount of light will be the independent variable and the rate of photosynthesis will be the dependent variable.
Because, photoautotrophs serves as their carbon sources.
Chemoheterotrophic bacteria are those bacteria that are incapable of producing their own food, they depend on photoautotrophs, which are capable of making their own food by trapping energy from the sun. Thus, photoautotrophs serves as source of food for the chemoheterotrophic bacteria.
Answer:
The correct answer will be- Elevation
Explanation:
The movement of the muscles attached to the skeleton system allows the movement of the body parts.
The motion of the body parts like joints, limbs, organs are represented by the specific terminologies in which the movement of the scapula towards the head is known as the "Elevation". The elevation represents the superior movement of the body parts.
Thus, Elevation is the correct answer.
