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lara31 [8.8K]
3 years ago
12

1. What is the first step of the scientific method?

Biology
1 answer:
vekshin13 years ago
4 0

Answer:

The first step in the Scientific Method is to make objective observations.

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George has attached ear lobes. Barbara has free ear lobes, but she is heterozygous for this trait. What are the chances of their
tiny-mole [99]
The inheritance of a dominant gene E results in the free out unattached earlobe. If the lobe is attached directly to the head, the individual is homozygous recessive, and the rest genotype is present. Hope this helps.
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What conclusion is best supported by the selection above ? NUMBER 2
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5. Some undiluted acids are more corrosive when diluted
wlad13 [49]

Answer:

The correct answer is : due to the hydrogen ions reacts and release high amount of energy with the strong acid.

Explanation:

Diluted acids are more corrosive then undiluted due to the presence of more H+ ions than the undiluted acids. The More the H+ ions are added the more corrosive the acid is.

When water is mixed with strong acid the hydrogen ions reacts with acid ions and a exothermic reaction takes place that release high amount of energy which boils violently, to avoid any accident it is advised to lab workers to wipe  if any splash self before washing.

Thus, the correct answer is : due to the hydrogen ions reacts and release high amount of energy with the strong acid.

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3 years ago
Which of the following statements is true?
Free_Kalibri [48]
<span>The answer would be: a) Frost-wedging happens when water freezes and breaks rocks.

Normally, the volume of a substance will become lower when the temperature drops but when water becomes ice it will expand. Water that freezes into ice can produce a high pressure from the expansion of their volume. If enough water fills a joint in a rock, the rock might get enough force to fractured or break. This will happens in the area that has a freeze-thaw cycle like in the polar climate.</span>
5 0
3 years ago
Read 2 more answers
In a dihybid cross, what does observing a ratio of 9:3:3:1 indicate?
Shtirlitz [24]

Answer:

Mendel's principle of independent assortment predicts that the alleles of the two genes will be independently distributed into gametes. ... This 9:3:3:1 phenotypic ratio is the classic Mendelian ratio for a dihybrid cross in which the alleles of two different genes assort independently into gametes.

Explanation:

8 0
3 years ago
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