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DochEvi [55]
3 years ago
7

During her science fair project, Mary discovered that solutions of ionic compounds in water conduct electricity. What type of in

vestigation could Mary perform to discover which type of ions conduct electricity best?
Biology
2 answers:
7nadin3 [17]3 years ago
6 0
A comparative experiment
crimeas [40]3 years ago
6 0

In the given case, there is a need for Mary to perform comparative experiment. It refers to an experimental design in which two or more populations or samples are exposed to distinct treatments or conditions and are compared with each other.

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Answer:

DNA codes for RNA which codes for proteins... so A

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4 years ago
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Unequal reproductive success ______.Group of answer choicescan lead to a population being less well adapted to its environmentca
postnew [5]

Answer:

can lead to natural selection

Explanation:

<h2></h2><h2>Unequal reproductive success<em> _can lead to natural selection_____.</em></h2>

This is because if there is unequal reproductive success then one of the organisms is <em>better suited for reproducing, surviving, and passing down their genes to their offspring</em> rather than the organism who is unfit. This is where natural selection comes into play because natural selection is process where <em>i</em><u><em>ndividuals better suited for their environment produce more and have better survivality. </em></u>

So overtime, the organism which is weaker  (in sense of fitness) (here fitness relates to reproduction and survival), will not pass as many genes and won't survive, whereas, individual better suited will, hence in  a way "<u>Nature selected"</u><u> </u>the better fit organism.

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3 years ago
No decorrer das semanas, a lua apresenta diferentes aspectos. A causa para essas mudanças na aparência do satélite da terra é: A
Tpy6a [65]

Answer:

C) the sun's rays that fall on the moon's surface.

Explanation:

The moon has different aspects and appearance because of the sun's rays that fall on the moon's surface. The shape of the Moon does not change itself, it occurs due to the sunlight. We only see that part of moon which is lit by the Sun. The phases of moon occur because the Sun lit different parts of the moon when the Moon revolves around the Earth so we can say that sun rays are responsible for the changing of shapes of the moon.

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3 years ago
The cell membrane controls movement of materials into and out of the cell. The following particles are moving from high concentr
Scilla [17]

Answer:

the answer woiuld be b

Explanation:

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Sidana [21]
D.Elements continuously cycle between the physical environment and living organisms.

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3 years ago
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