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jasenka [17]
3 years ago
8

If we put iodine water in a beam seed it will be positive result or negative result? ​

Biology
1 answer:
Zepler [3.9K]3 years ago
5 0

You mean bean?

if yes,the result will be positive since beans contain starch.

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A disease called phenylketonuria causes mental problems, reduces skin pigmentation, and also affects the coloration of urine. Wh
swat32

Answer:

Pleiotropy

Explanation:

Pleiotropy is a genetic condition in which a single gene conditions the expression of multiple phenotype. There are different types of pleiotropy depending on the underlining mechanism

  • <em>gene pleiotropy</em>
  • <em>developmental pleiotropy</em>
  • <em>selectional pleiotropy</em>
  • <em>antagonistic pleiotropy </em>

<em>Phenylketonuria is a disease characterized by increased level of amino acid phenylalanine in the blood. It caused by mutation to the gene responsible for breaking down phenylalanine in the blood. Elevated level of phenylalanine causes other issues such as mental problems, urine coloration and reduction in skin pigmentation. This is a clear case of pleiotropy.</em>

7 0
3 years ago
Explain how replacing asphalt with gravel or other permeable material can improve water quality.
Ira Lisetskai [31]
When coming to building something, some materials are more vulnerable to water and can wear away easier. Some can keep the water in, so depending on the material, the water quality can be better sustained.
8 0
3 years ago
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the data collected over the years clearly confirm depletion of ozone in the stratosphere. what do scientists still need to learn
Lisa [10]

<span>Ozone is simply a molecule consisting of 3 oxygen atoms, which reacts strongly with other molecules. Ozone is created in the stratosphere when high energy uv radiation causes on O2 molecule to split. The free oxygen atoms collide and react with other O2 molecules to form O3.</span>

Production is highest where the solar uv is the greatest eg near the tropics, but once created, the ozone is then circulated towards the poles by the atmosphere. The amount of ozone in the stratosphere can vary with location, season and even day to day climatic conditions.

<span>The process of ozone creation is what makes the O3 in the atmosphere very effective at shielding the Earth from harmful uv radiation, which can cause many biological problems, such as skin cancer. However, due to its high reactivity, the uv found in the tropospher at ground level can aslo be dangerous as a toxic pollutant which is harmful to plants and lung tissue, and is a major cause of smog.</span>

5 0
3 years ago
Read 2 more answers
Why are scientists interested in the origin of organic molecules?<br><br> help me please...
valentina_108 [34]

Answer:

Gas from Earth's core came to the surface through volcanoes.

Recent hypotheses about the origin of organic molecules suggest that these molecules may have formed in hydrothermal vents deep in the oceans, where hot gases and elements emerge from cracks in Earth's crust.

<h2><em><u>Hope</u></em><em><u> </u></em><em><u>it</u></em><em><u> </u></em><em><u>helps</u></em><em><u> </u></em><em><u>you</u></em><em><u>☸</u></em><em><u>.</u></em><em><u> </u></em></h2>

<em><u>Thanks</u></em><em><u>☸</u></em><em><u>.</u></em><em><u> </u></em>

7 0
3 years ago
Mammals produce milk to nurse their young. In humans, which hormone controls milk production?
DedPeter [7]

Answer: C. Prolactin

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Moreover, Prolactin is in the highest level in about 30 minutes after the beginning of the feed, which is most important for producing milk for the next feed.

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3 years ago
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