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3 years ago

Which is a negative effect of hydroelectric power?

Biology

2 answers:

masya89 [10]3 years ago

8 0

Answer:

Mostly flooding but it destroys forests, wildlife habitat, agricultural land, and scenic lands. Not just because it has some environmental consequences but there is also some possibility of drought.

Explanation:

Flooding land for a hydroelectric reservoir has an extreme environmental impact: it destroys forests, wildlife habitat, agricultural land, and scenic lands. In many instances, such as the Three Gorges Dam in China, entire communities have also had to be relocated to make way for reservoirs as stated by the union of concerned scientists.

Yuliya22 [10]3 years ago

7 0

Answer:

I would say blocking fish because hydroelectric is the cleanest energy source

Explanation:

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The science of classifying life is called _______ and its purpose is to organize species into logical grouping based on similar

Oksanka [162]

Its called classification based on traits

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3 years ago

You have identified a mutation in a gene that seems to decrease transcription of another gene 2000 bp away from the mutation sit

Reil [10]

Answer:

Enhancer sequence.

Explanation:

Enhancers may be defined as the transcription factors that are used to enhance or increase the activity of the gene. Enhancers bind with the transcription factors to regulate and increase its expression.

The mutation in the enhancers decrease the transcription of of the other gene. These sequences lies far away from the transcription site but still known to increase the rate of transcription. Hence, the mutation has been done in the enhancer sequences.

Thus, the correct answer is option (b).

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3 years ago

What happens when the top predator is removed from an ecosystem?

Tema [17]

The number of consumers increases

6 0

3 years ago

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Interestingly, even though hemophilia in the royal families began in England, they were actually the only one of these four fami

Alex Ar [27]

Answer:

<h2>Alice's daughter Alix =X X* </h2><h2>George V= XY </h2><h2>Progeny are;</h2><h2>XX, XY, X*X, X*Y </h2><h2>50 % males would be infected </h2><h2>50% male normal</h2><h2>50% female normal, </h2><h2>50 female carrier. </h2>

Explanation:

Hemophilia is an inherited disease and it follows an X-linked recessive pattern. The genes for hemophilia disease are located on the X chromosome. In males one mutated copy of the chromosome X is sufficient to cause the condition, because male contain only one gene. Female contain XX chromosome, so both the chromosome must have mutated for causing this disease.

According to study of Queen Victoria (1891-1901) of England, Alice's daughter Alix was X linked carrier and George V was normal male,

so if they got married, their children would be

parents genotype X X* XY

progeny

XX, XY, X*X, X*Y

50% males would be infected

50% male normal

50% female normal,

50 female carrier.

6 0

3 years ago

Which part of the cell theory do these results most support:

Vlad1618 [11]

<h2>Hey There!</h2><h2>_____________________________________</h2><h2>Answer:</h2><h2>_____________________________________</h2>

$\huge\textbf{Cell Theory}$

the Cell Theory was give by German scientists, Schleiden and T.Shwan in 1839. It stated that,

All organism are composed of one or more cells

The cell is the structural and functional unit of life
It is a de novo structure, that means it COULD arise from non living thing which was incorrect.

It was corrected by the German pathologist Rudolf Virchow in 1855. He made a convincing case, corrected and added the third point of the cell theory. It is,

Cells can arise only by a division of pre-existing cell. It is <u>NOT</u> a de novo structure.

Cell theory brought a great evolution in the field of biology which established the function of organism is the result of activities and interaction of the cell units.

$\huge\textbf{Question:}$

<u>Flask 1</u>: It is observed that there are no micro-organism, this is because the meat is sealed and no micro-organism could enter through it.
<u>Flask 2</u>: It is observed that there are micro-organism present because meat is not sealed but open.
<u>Flask 3</u>: As the S tube is used, the micro-organism are not able to reach the meat because of the curvy path

These observations support the point that<u> cells could arise only by a division of pre-existing alive cells</u> because in Flask 1 when there were no micro-organism present so there was no organisms found so no micro-organism arised, In flask 3 the S tube was used so no micro-organism could reach the meat thus there were no organism there which could divide to reproduce. The flask 2 was open, so the micro organisms reached the meat so they divided which means Cells can only arise by a division of pre-existing cells.

<h2><u>_____________________________________</u></h2><h2>Best Regards,</h2><h2>'Borz'</h2>

3 0

3 years ago

Read 2 more answers