Answer:
ok so i think that she would lose all her hair then it will start to grow back
Explanation:
The right option is; an experimental investigation, because it allows for the control of variables.
The best type of scientific investigation for Bena to use to study this is an experimental investigation, because it allows for the control of variables.
Experimental investigation is a type of scientific investigation in which variables are controlled, modified, and measured in order to obtain facts to buttress or oppose a causal relationship. Experimental investigation includes all the parts of an experiment such as observations, scientific question, hypothesis, procedure, variables (independent and dependent) etc.
B) cytosine is found in both dna and rna
A reddish pink color indicates that the bacteria are active and fixing nitrogen.
<h3>What is nitrogen fixation?</h3>
The term nitrogen fixation has to do with the ability of certain bacteria to trap and fix nitrogen into the root noodles of leguminous plants. This is an active part of the nitrogen cycle.
Thus, a reddish pink color indicates that the bacteria are active and fixing nitrogen.
Learn more about nitrogen fixation:brainly.com/question/19938608
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