<span>d. Disk soaked in distilled water
Experimentation is a scientific process wherein you test and verify a hypothesis based on its assumption is going to be supported or negated (null hypothesis). Hence experimentation involves the independent and dependent variable, also control variable as a level in the IV. </span>
Heat will flow from the copper coin to the brass coin.<span>
</span>
I think the correct answer from the choices listed above is the third option. It is an outbreak of psoriasis that is not a <span>possible indicator of a biological agent. Hope this answers the question. Have a nice day. Feel free to ask more questions.</span>
Answer: Base pairs occur when nitrogenous bases make hydrogen bonds with each other.
Explanation: Each base has a specific partner: guanine with cytosine, adenine with thymine (in DNA), The hydrogen bonds are weak allowing it to "unzip"
If you're asking what 'controls' the cell, then that would be the nucleus. The king of the cell.
