Answer:
Within-Subjects Experiments
Explanation:
Within-Subjects Designs: this is a form of experimental design in which the participants involved is exposed or subjected to all the conditions.
However, in this case, Alberto, is using Within-Subject Designs (simultaneous) by exposing all the participants to answer arithmetic problems while listening to metal, and then country, and finally classical music simultenously.
The multiple conditions here are: arithmetic problems to solve, listening to different types of music in a sequence that mixed the different types.
Answer:
The need to have better protection led to innovations in tools and weapons.
Explanation:
It began at a point when the various insignificant city-state rules of the Spring and Autumn period had been incorporated into seven significant contenders and a few insignificant enclaves. It was disturbed by two hundred years of brutality and combat. It profited from the leadership of philosophers who struggled with the king. It encountered strong guidance from feudal chiefs under the king.
Carbon and nitrogen are examples of nutrients. Unlikeenergy<span>, </span>matter<span> is recycled in </span>ecosystems<span>. In the figure below, you can see how (Figure below). Decomposers release nutrients when they break down dead organisms.</span>
Separatist, also called Independent
Answer:
the euorpeans were looking for sea routes to asia.
Explanation:
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