The hypothesis is a claim or prediction. <u><em>If </em></u><em>in Petri plates, contaminated with Penicillium notatum, bacteria are dead, </em><u><em>then</em></u><em> the fungus must be inhibiting bacteria growth and killing the existing ones. </em>
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A hypothesis is a conjecture. A researcher hypothesizes to predict what is going on or what is expected to occur. The hypothesis is a claim of how it works a relation between two or more variables. Usually, it is written in the present time.
According to Fleming's experiment and his accident in the lab, we can postulate the following hypothesis.
<u><em>IF </em></u><em>in </em><em>Petri plates</em><em>, contaminated with </em><em>Penicillium notatum</em><em>, </em><em>bacteria </em><em>are dead, </em><u><em>THEN</em></u><em> the f</em><em>ungus</em><em> must be </em><em>inhibiting</em><em> bacteria </em><em>growth</em><em> and </em><em>killing</em><em> the existing ones. </em>
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Fleming observed that in plates where the fungus was growing, there were no bacteria. <em>He compared these plates with the other ones with no fungi and saw that on the other plates bacteria were still alive</em>. So he assumed that <em>Penicillium notatum</em> was causing the death of bacteria and inhibiting their growth.
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Answer:
B
Explanation:
Because Molecules of carbon dioxide (CO2) can absorb energy from infrared (IR) radiation. This animation shows a molecule of CO2 absorbing an incoming infrared photon (yellow arrows). ... This ability to absorb and re-emit infrared energy is what makes CO2 an effective heat-trapping greenhouse gas. And it will lead to green house effect...
Answer:
all of the above
Explanation:
All the statements are true that is Sweating is an example of positive feedback because when you sweat your body becomes hot and your inner body becomes cool. Shivering is an example of negative feedback because shivering occurs when there is cold in the body and can lead to sickness. The nervous system is responsible for sensing changes in the environment because it is responsible for sensing what's going on in our body.
The answer is central canal and it basically is in the center of the spinal cord in which csf flows from the brain to the lower end.