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In-s [12.5K]
4 years ago
14

Megan experimented with growing mold. She took 3 pieces of bread from the same loaf and placed each into a plastic sandwich bag.

Before sealing the bag, she added 5 drops of water to each slice. Next, she placed one bag on her window sill, one in a dark cabinet, and one in a room away from sunlight. Megan concluded that the different amount of mold that grew on each slice was due to the amount of light it received. Is this a valid conclusion?
A) Yes, because the light was the manipulated variable.


B) Yes, because the light was the controlled variable.


C) No, because the light could not have affected the growth.


D) No, because the light should have been the same for each bread slice.
Chemistry
2 answers:
kvasek [131]4 years ago
3 0

Answer:

Yes, because the light was the manipulated variable

Explanation:

djyliett [7]4 years ago
3 0

Answer:

Your answer would be A. Yes, because the light was the manipulated variable.

Explanation:

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Answer:

A cation is an ion with fewer electrons than protons. Therefore, it has a positive charge. The electric charge on a proton is equal in amount to the charge on an electron. Anions are atoms or radicals (groups of atoms), that have gained electrons. Since they now have more electrons than protons, anions have a negative charge. Halogens always form anions, alkali metals and alkaline earth metals always form cations. Most other metals form cations (e.g. iron, silver, nickel), whilst most other nonmetals typically form anions (e.g. oxygen, carbon, sulfur).

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B). light energy is not required to proceed

Explanation:

In the Calvin cycle of photosynthesis, light energy is not required. The Calvin cycle is light independent and it is made up of a series of redox reactions.

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  • The cycle is also known as dark reactions.
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  • The Calvin cycle follows by using the NADPH and ATP to produce glucose in the dark phase.

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ATP brainly.com/question/2953868

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4 0
4 years ago
I need help fast...........
guapka [62]

Answer:

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8 0
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Convection: the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.

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A full moon occurs when the Moon appears as a complete circle in the sky.

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6 0
3 years ago
Read 2 more answers
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