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Helga [31]
3 years ago
11

What is the purpose of a pH indicator?

Biology
1 answer:
shusha [124]3 years ago
3 0

To determine visually the pH(acidity of basicity) of the solution.

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How do chemosynthetic organisms get energy? Some examples of organisms include colorless sulfur bacteria, iron bacteria, and gia
Yuliya22 [10]

Answer:

The source of energy for chemosynthesis is energy liberated from a chemical reaction (the oxidation of an inorganic substance)

Explanation:

https://sciencing.com/source-energy-chemosynthesis-6681808.html

4 0
2 years ago
Briefly explain how producers, herbivores, carnivores, omnivores, and scavengers are related in an environment.
Harlamova29_29 [7]
Producers are very important to ecosystem reason being without the producers we would not be able to survive. Producers make their own food by use of sun which turns simple raw materials into food.
 Herbivores are consumers who eat only green plants. Omnivores eat animals and plants. Scavengers only eat dead organisms. Scavengers help the environment in that they eat dead organisms and decomposes the broken organic material down to the raw material.
8 0
3 years ago
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Nastasia [14]
It’s an Element. Because each of more than one hundred substances that cannot be chemically interconverted or broken down into simpler substances and are primary constituents of matter. Each element is distinguished by its atomic number, i.e. the number of protons in the nuclei of its atoms.
3 0
3 years ago
If a molecule of DNA has 30% Adenine how much of the other bases will be present?
anygoal [31]

Answer:

If a DNA molecule has 30% Adenine the percentage of the other bases is Thymine: 30% Cytosine: 20% Guanine: 20%.

Explanation:

When the percentage that a base has in a DNA molecule is given, the percentage of the other bases can be known using the Chargaff's base pair rule.

A DNA molecule has the information of the genome of a living being, according to a specific sequence of its nitrogenous bases adenine, guanine, cytosine and thymine.

Chargaff was able to establish that in a DNA molecule the ratio of purine : pyrimidine of 1:1, so there must be the same amount of thymine as adenine and a similar amount of guanine for the cytosine, taking into account the complementarity of bases.

Taking into account the law of the base pair, if in a DNA chain there is 30% of Adenine, in the molecule there is:

  • <em>Adenine 30%. </em>
  • <em>Thymine 30%. </em>
  • <em>Cytosine 20%. </em>
  • <em>Guanine 20%. </em>
  • <em>Total ..... 100% </em>

In this case, the <u>Chargaff rule is useful to determine the percentage of nitrogenous bases that exist in a DNA molecule, knowing the percentage of a single base</u>.

7 0
2 years ago
An important purpose of a cell wall in bacteria is to
s344n2d4d5 [400]

Answer:

Prevent the cell from collapsing

Explanation:

Not 100% positive

5 0
3 years ago
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