The three parts of ATP are the adenine base, ribose and the phosphate groups.
Independent variable - juice
Dependent variable - stacks of paper made
Control - group B
Constant - Task
<h3>Research variables</h3>
In every scientific investigation, there are different variables. These include:
- Independent variables: These are the variables that are supplied by the researcher and often varied to produce different effects. It is often referred to as the 'cause' variable.
- Dependent variables: These are variables that are measured in the course of research. They are a result of the effects of the independent variable on the experimental subjects or groups. They are otherwise known as 'effect' variables.
- Constant variables: Variables that are applicable to all experimental groups and are usually kept constant.
Also, there are different groups in research:
- Control group: The reference group. The group that is not fed with the independent variable and forms the basis for comparison in order to understand the effects of the independent variable.
- The experimental group: The group that is fed with the independent variable.
More on research variables can be found here: brainly.com/question/25115889
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Answer:
A negative feedback initiated by the external simuli or the products of a reaction aims to reduce the products/ output of the reaction. Hence In negative feedback the stimulus is reduced. An example of a negative feedback would be if a person had an elevated body temperature, the homeostatic response would be to lower the body temperature.
Body fluids are drawn into the valved ostia
It is mostly likely the cell membrane.
The cell membrane is a structure of a cell composed of double layer of lipids and proteins. It surrounds a cell and separates the cytoplasm from its surrounding environment. The cell membrane is selectively permeable (semi-permeable), which means that it only lets certain molecules enter and exit. It can also control the amount of some substances that go into or out of the cell.
