The controlled experiments are performed by the scientists, when they want to study the changes in the sample on changing a single variable. So, the correct answer is option (b).
In case, all variables are kept same, no changes would be observed in the experiment sample. A controlled experiment can be performed on living thing as well as non living. But, controlled experiment cannot be performed on the things which are influenced by a lot of variables, as they cannot create realistic results. So, the option (a), (c), and (d) are incorrect.
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Answer:
c
Explanation:
porque no me deja saber para que se te complique
<em>Parts of a Neuron;</em>
<u>Cell body: The "regular" part (Contains nucleus and other organelles) </u>
Axon: Sends signals to the synapse
Dendrites: Receive signals from other synapses
