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3 years ago

13

Using the scientific defenition of work, does moving an object a greater amount of distance always require a greater amount of w

ork? why or why not

1 answer:

MaRussiya [10]3 years ago

3 0

Yes it does require a greater amount

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Describe the cycle that involves soil decomposed and other living things

daser333 [38]

Carbon cycle is what happens.

4 0

3 years ago

You are attempting to re-create the mouse/human hybrid cell fusion experiment described in your screencasts. You believe you are

Aliun [14]

Answer:

The correct answer is option d. "The phospholipids in this procedure had a shorter average fatty acid tail length than in the original experiment".

Explanation:

One factor that affects the speed at which fluorescent proteins achieve an even distribution is the length of the average fatty acid tails. Cell hybrids are produced by the fusion of two cells, which means that the genomic content of each cell must surpass the cell membrane barrier. The shorter the average fatty acid tails of the phospholipids in the cell membrane are, the faster the cell fusion will occur and the faster the fluorescent proteins will achieve an even distribution.

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3 years ago

Consider a locus with two alleles - B and b. B is dominant, while b is recessive. There is no mutation. B has a selective advant

Marat540 [252]

Answer:

0.09

Explanation:

<h3><u>Before selection</u></h3>

Total number in population = 1000

Genotype frequencies

Genotype frequency of BB = 500/1000 = 0.5

Genotype frequency of Bb = 250/1000 = 0.25

Genotype frequency of bb = 250/1000 = 0.25

Allele frequencies

Allele frequency of B = BB genotype frequency + half of the Bb genotype frequency = 0.5 + (0.25/2) = 0.625

Allele frequency of b = bb genotype frequency + half of the Bb genotype frequency = 0.25 + (0.25/2) = 0.375

<h3><u>After selection</u></h3>

We are told that after selection, the genotype frequency of bb is changed as they become 50% less fit. This means the frequency of bb individuals changes from 250 to 125 individuals (50% reduction).

Now the total number of individuals is 500 + 125 + 250 = 875.

Genotype frequencies

Genotype frequency of BB = 500/875 = 0.57

Genotype frequency of Bb = 250/875 = 0.29

Genotype frequency of bb = 125/875 = 0.14

Allele frequencies

Allele frequency of B = BB genotype frequency + half of the Bb genotype frequency = 0.57 + (0.29/2) = 0.715

Allele frequency of b = bb genotype frequency + half of the Bb genotype frequency = 0.14 + (0.29/2) = 0.285

<h3><u>Change in frequency of B after 1 generation</u></h3>

0.715 - 0.625 = 0.09

7 0

3 years ago

Explain each of the following, giving a named example in each case:

gogolik [260]

(a) solute = substance (solid or liquid) in lesser amount, which will [dis]solve into the solvent

(b) solvent = substance (liquid) in larger amount, which [dis]solves the solvent
it's dissolvability is called "solvency"
water is known as the universal solvent because it is abundant on Earth and has a high solvency

(c) solution = the combination of solvent + solute
depending on the saturation of solute within solvent, the solution may appear clear, like the solvent

**think of warm sugar-water (solution), when all the sugar (solute) dissolves into the water (solvent), the solute seems to have disappeared

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3 years ago

Why may chronic bronchitis lead to other diseases

11111nata11111 [884]

Answer:

Chronic bronchitis might lead to other diseases because it weakens your immune system and makes it easier to catch diseases and harder to fight them off.

4 0

3 years ago