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2 years ago

What is an organ system composed of?

Biology

2 answers:

Gelneren [198K]2 years ago

6 0

A organ systems if composed of c

Marina CMI [18]2 years ago

4 0

Answer:

Definition of an Oran System:

An organ system is a group of organs that work together as a biological system to perform one or more functions. Each organ does a particular job in the body, and is made up of distinct tissues.

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Why doesn't the Gulf Stream warm Providence, Rhode Island, or Bangor, Maine

coldgirl [10]

The answer is b i did the quiz

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2 years ago

State two differences between the light stage and the dark stage of photosynthesis

kirill [66]

Answer:

Dark reaction takes place with the presence or absence of sunlight. Light reaction is considered as the light dependent reaction. Light reaction is also called as photo-chemical phase

Explanation:

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1 year ago

A scientist modified the structure of a promoter region of a gene. What could be its effect on transcription and translation?

kenny6666 [7]

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7 0

3 years ago

small group of 100 people decide to isolate themselves from the world and move to a small and remote deserted island. Out of thi

irina [24]

Answer:

Frequency of p $= 0.684$

Frequency of p $= 0.316$

Number of individuals with homozygous dominant (AA) $= 47$

Number of individuals with heterozygous (Aa) $= 43$

Number of individuals with homozygous recessive (aa) $= 10$

Explanation:

Out of 100 people, 10 have albino skin (aa)

So, the frequency of homozygous recessive individuals $(q^{2})$ is $\frac{10}{100} = 0.1$

Now, q will be

$= \sqrt{q^{2} } = \sqrt{0.1} \\= 0.316$

As per Hardy Weinberg's equation -

$p + q = 1$

Substituting the value of q in above equation, we get -

$p + 0.316 = 1p = 1 -0.316\\p = 0.684$

Now the frequency of homozygous dominant (AA) will be

$p^{2} = 0.684^{2} \\= 0.467$

Hence, out of 100 people $0.467 * 100 = 46.7 or 47$ people are homozygous dominant (AA)

Like wise out of 100 people $0.1 * 100 = 10$ people are homozygous recessive (aa)

As per As per Hardy Weinberg's equation-

$p^{2} + q^{2} + 2pq = 1\\$

Substituting the values in above equation, we get -

$0.467 + 0.316 + 2pq = 1\\2pq = 1 -( 0.467+ 0.1)\\2pq = 0.433$

So, out of 100 people $0.433 * 100 = 43.3 or 43$ people are heterozygous (Aa)

7 0

3 years ago

Adapted from images courtesy of NIH and Wikipedia.

Maksim231197 [3]

Answer:

Nucleus

Explanation:

It is enclosed by a nuclear membrane perforated by numerous pores. It regulates the activities of the rest of the cell. It contains chromosomes which carry the hereditary materials. One or more densely staining bodies called nucleoli is present in the nucleus. It is site for synthesis of ribosomes

4 0

2 years ago

Read 2 more answers