<span>He would be called an ecologist. And the study of ecosystems is called ecology
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Articles.
After the Preamble, the rest of the U.S. Constitution is divided into seven sections called ARTICLES.
Article 1 - Legislative Branch. Its powers and duties.
Article 2 - Executive Branch. Its powers and duties.
Article 3 - Judicial Branch. Its powers and duties.
Article 4 - Powers and duties of the States
Article 5 - Powers of the Congress to propose Amendments
Article 6 - Deals with Treaties made before and after the establishment of the Constitution.
Article 7 - Ratification of the Conventions of the States
Answer:
D texture of the jumping surface
Explanation:
An experiment can be defined as an investigation which typically involves the process of manipulating an independent variable (the cause) in order to be able to determine or measure the dependent variable (the effect).
This ultimately implies that, an experiment can be used by scientists to show or demonstrate how a condition causes or gives rise to another i.e cause and effect, influence, behavior, etc in a sample.
A control experiment can be defined as an experiment in which a condition assumed to be a probable cause of the effect is being compared to the same situation by the scientist without involving or using the suspected condition.
In an experiment , the variable being manipulated by an experimenter is known as an independent variable while the dependent variable is the event expected to change when the independent variable is manipulated.
Furthermore, a controlled variable refers to anything or quantity such as group, person, event, etc., that is held constant by the researcher during an experiment and as such is limited.
In this scenario, you are designing an experiment to find out which type of frog can jump farther. Thus, the controlled variable (variable that does not change) in this experiment is the texture of the jumping surface because it is where all the frogs would be tested on i.e used for the jumping test.
