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2 years ago

Someone please help soon !!

Biology

1 answer:

Archy [21]2 years ago

7 0

I’ll help!! So Hydration refers to cells absorbing water. Our cells need water in order to remain healthy and humans need water in order to live. Keep remembering, water goes wherever water is lower. So the water can spread throughout wherever it’s needed. It can be stored inside the cells themselves, blood, intercellular fluids, etc. we can measure how much water has entered the cell by measuring the movement of water caused by diffusion ( a little harder to explain so I’m sorry if that doesn’t make sense!)

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After graduation, you and 19 friends build a raft, sail to a deserted island, and start a new population, totally isolated from

Softa [21]

Answer:

Incidence of cystic fibrosis on the island= 0.0025

Explanation:

According to the given information, the population is in Hardy Weinberg equilibrium which means that the allele frequencies would be maintained over generations.

Given that total population size is = 20

Total number of alleles = 20 x 2 = 40 (since human are diploid, each individual has two alleles for one gene).

Out of total 19 people, only two are heterozygous for cystic fibrosis which means that out of total 40 alleles, the number of recessive allele for cystic fibrosis is = 2

Frequency of recessive allele (q)= 2/ 40 = 0.05

Frequency of cystic fibrosis genotype (q^2) = 0.05 x 0.05 = 0.0025

Therefore, incidence of cystic fibrosis on the island would be = 0.0025

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3 years ago

Which of the following statements about weathering is true?

enyata [817]

Answer:

the first option is correct. two types of weathering are physical / mechanical weathering and chemical weathering.

Explanation:

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3 years ago

Which option is an example of something that can promote sustainable development?

nirvana33 [79]

Answer:

(C.) using solar panels for heat

Explanation:

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1 year ago

Which finding would have disproved Virchow’s hypothesis?

dexar [7]

Answer:

Virchow was a German scientist whose most important work was in the filed of cellular biology and pathology.His scientific experiments and examinations aimed to disprove the idea of spontaneous generation. This idea is based on an assumption that life can spontaneously appear out of non-living matter. After years of scientific work he concluded that only living cells can produce other cells, or that only life can produce life.Therefore, if it was somehow proven that cells can be generated from non-living matter, that would disprove his findings.

Explanation:

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3 years ago

Read 2 more answers

The magnets point North when the Earth's magnetic field has (p2)<br><br>need some help :)

Natali5045456 [20]

<h2><u>EARTH'S MAGNETIC FIELD</u></h2>

The magnets point North when the Earth's magnetic field has?

<h2><u>ANSWER</u></h2>

I think the best answer for this question is Magnetic Reversal or Geomagnetic Reversal.

In geomagnetism, the term "geomagnetic reversal" also known as 'flip', is the process by which the North pole becomes South pole and the South pole transforms into North pole.

<h2><u>THE MAGNETIC REVERSAL</u></h2>

The reversals happen on rare occasions when iron molecules start moving towards the opposite direction as other iron molecules around them within the Earth's spinning outer core.

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1 year ago