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Lera25 [3.4K]
3 years ago
15

When measuring for pH, you are measuring for the presence of these ions?

Biology
1 answer:
Mumz [18]3 years ago
6 0

Answer:

Hydrogen ions

Explanation: pH is the concentration of hydrogen ions (H+) in a given solution. A pH of 1 means there are a lot of hydrogen ions and a pH of 14 means there is a very small concentration if them.

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The speed of a nerve impulse in the human body is about 100 m/s. If you accidentally stub you toe in the dark, estimate the time
sleet_krkn [62]

Answer:

0.02 s takes the nerve impulse to travel to your brain.

Explanation:

We have an arythmetical equation that is proposed in the problem.

If the speed of a normal nerve impulse is 100 m per one second, how much will take the same impulse in go throught 2 meters, so it does 2 meters in X s.

100 m / 1 s = 2 m / x s

After we have our equation formulated we need to find x

X s = 2 m * 1 s / 100 m = 0.02 s

This is the way how we found that there is a time of 0.02 s that takes the nerve impulse to go from the toe to your brain if you are 2 meters tall.

8 0
3 years ago
What can happen when a mutated gene makes a protein that doesn't function properly? Provide an example
zepelin [54]
<span>That gene can cause genetic disease, a common one being colour blindness or sickle cell anemia.

I hope this answer helped you.
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7 0
3 years ago
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Some steps in mitosis are shown below. They are not in order.
xeze [42]

Answer:

Step D

Explanation:

Anaphase is when the chromatids move apart, so Step D would be anaphase.

8 0
4 years ago
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Explain how tides form. <br> Help would be greatly appreciated! Thanks. :)
MakcuM [25]

How are tides caused?

Tides are periodic rises and falls of large bodies of water. Tides are caused by the gravitational interaction between the Earth and the Moon. The gravitational attraction of the moon causes the oceans to bulge out in the direction of the moon.

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4 0
4 years ago
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In a monohybrid cross, if the gene for tall (T) plants was incompletely dominant over the gene for short (t) plants, what would
iVinArrow [24]

The result of the cross of an intermediate plant (Tt) with a tall plant (TT), when the tall gene (T) is incompletely dominant over the short gene (t) will be as shown in the punnet square below. The gametes formed will be T , T , T, and t (Where T is the allele for tall while t is the allele for short).The punnet square shows that the 50 % of the progeny of this cross will be tall (TT), and the other 50% will be intermediate (Tt). Hence, the correct answer is 'Option C - 50 percent tall, 50 percent intermediate'.

4 0
4 years ago
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