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Wittaler [7]
2 years ago
5

20 POINTS! Why is it important to use a controlled experiment?

Biology
2 answers:
Otrada [13]2 years ago
8 0

B. So you can be certain of the link between the variables
that’s the answer
gregori [183]2 years ago
3 0
Answer is B !!!

you have to know what youre doing
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Examples of autotrophic bacteria are: (a) parasites (b) saprophytes (c) pathogenic
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Answer:

(d) chemosynthetic forms

Explanation:

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3 years ago
¿Cómo ocurre un enlace de átomos?
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A chemical bond occurs as a result of electrostatic interaction between the nuclei and the electrons of the joining atoms. ... Simultaneously, a repulsion arises between the two positively charged nuclei and the same occurs with the electrons of the two negatively charged atoms.

Explanation:

p o n l o  e n  e l  t r a d u c t o r

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