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zimovet [89]
3 years ago
8

Ozone is both helpful and harmful to life on Earth. true or false

Biology
1 answer:
trasher [3.6K]3 years ago
4 0
True.

In the upper layers of the atmosphere, it blocks UV radiation from the sun; however, in the lower layers, it is a pollutant. 
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In a strand of DNA, each single nucleotide represents a single letter of the DNA code. The following image represents a segment
OleMash [197]

The immense amount of information stored in DNA is coded with just four base nucleotides. These four nucleotides are paired by twos to form <u>complementary </u>DNA chains.

The makeup of DNA is limited to two <u>pairs </u>of nucleotides bases. One of these pairs is a pyrimidine base whilst the other forms a purine base. The four nucleotides that will make up the entire DNA code are:

  • Adenine (A)
  • Guanine (G)
  • Cytosine (C)
  • Thymine (T).

A and G will pair to form the purine base, meanwhile, Cytosine pairs with Thymine to form the <em>pyrimidine base</em>. As per the entire DNA code, A will always pair with G.

Whilst C always pairs with T. This is due to the very nature of the nucleotides themselves and will not change throughout the synthesis or duplication of DNA. Therefore, to complete the complementary strand described in the assignment we must match the letter given with its corresponding base pair, using this rule of DNA.

To learn more visit:

brainly.com/question/967810?referrer=searchResults

8 0
2 years ago
Que caracteristicas comparten todas las celulas eucariotas ?
Olenka [21]

Explanation:

Las células eucariotas son muy diversas en forma, forma y función. Sin embargo, algunas características internas y externas son comunes a todos. Estos incluyen una membrana plasmática (celular), un núcleo, mitocondrias, orgánulos unidos a la membrana interna y un citoesqueleto.

4 0
3 years ago
Digestive problems can occur at nearly any point in the digestive process. Some problems are minor, like occasional heartburn, i
Kryger [21]

Answer:

a. People with celiac disease should include foods with dietary fiber such as beans, fruits, vegetables, brown rice, and quinoa.

e. Home-cooked meals are a good way to increase variety and reduce the cost of a gluten-free diet.

Explanation:

Celiac disease is an autoimmune disease, as stated above. This disease causes the defense cells of an organism to attack the stomach cells causing an inflammation that is extended and stimulated by the glutem. As a result, the individual has diarrhea, constipation, weight loss, anemia, a feeling of fullness, colic, abdominal discomfort, severe pain and may even develop ulcers and cancers.

Glutem is a protein found in wheat, barley and rye and for that reason, individuals with this disease should avoid these foods or foods derived from them. This type of diet should accompany the sick person for life and they should be encouraged to eat homemade foods that know the origin and composition. In addition, it is necessary that these people feed on dietary fibers, such as beans, fruits, vegetables, brown rice and quinoa.

8 0
3 years ago
What is the mRNA sequence for the DNA sequence a-c-c
allsm [11]

Answer:

Hi, there it's U-G-G

Hope this helps and correct :)

Explanation:

5 0
2 years ago
Rob measures the solubility of three different salts in water at 22°C.
Montano1993 [528]
<span>The correct answer to this question is a line graph. If Rob needs to create a graph that is able to display the combination of two different values - in this case, level to which the salt has dissolved and time taken - and he needs to have more than one result included, then a line graph is the way to present this.</span>
7 0
3 years ago
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