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slega [8]
3 years ago
15

Write about the brightness of star briefly.​

Biology
1 answer:
ArbitrLikvidat [17]3 years ago
4 0

However, the brightness of a star depends on its composition and how far it is from the planet. Astronomers define star brightness in terms of apparent magnitude — how bright the star appears from Earth — and absolute magnitude — how bright the star appears at a standard distance of 32.6 light-years, or 10 parsecs.

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Organisms with prokaryotic cells are separated into two.
wolverine [178]

Prokaryotic organisms are separated into two domains or groups: Bacteria and Archaea.

<h3>What are prokaryotic organisms?</h3>

Prokaryotic organisms are those whose cells do not have a membrane that delimits the cell nucleus and, instead, present their genetic material dispersed in an area called the nucleoid.

<h3>Characteristics of prokaryotic organisms</h3>

  • Prokaryotic cells form unicellular living organisms, belonging to the Archaea and Bacteria domains, depending on the preferred biological classification.

  • The Bacteria domain groups the most primitive prokaryotic organisms of all, they are dedicated to various types of metabolic activity: photosynthesis, such as cyanobacteria (blue-green algae), the decomposition of organic matter, etc.

  • The Archaea domain groups the archaebacteria or archaea, prokaryotic organisms that exhibit certain similarities with eukaryotic life, exist in very specific and generally hostile habitats (leading an extremophile life).

Therefore, we can conclude that the two domains, bacteria and archaea, encompass the world of prokaryotic organisms, that is, those that lack a cell nucleus.

Learn more about prokaryotic organisms here: brainly.com/question/1056970

4 0
3 years ago
Explain the relationship between DNA, genes, chromosomes, and traits.
galina1969 [7]

Answer:

Genes are contained in chromosomes, which are in the cell nucleus. A chromosome contains hundreds to thousands of genes. Every normal human cell contains 23 pairs of chromosomes, for a total of 46 chromosomes. A trait is any gene-determined characteristic and is often determined by more than one gene

6 0
3 years ago
Explain how heredity plays a role in the traits we receive from our parents.
xenn [34]
Hope this helps you

4 0
4 years ago
What is responsible for the decreased stability of rna compared to dna?
Art [367]

The reason why the RNA has decrease stability compared to DNA is because the DNA, is lacking a hydroxyl group in which making it more stable than of the RNA, that is why RNA has decrease stability than the DNA.

4 0
3 years ago
Geology belongs to which branch of science?
kondaur [170]
Earth science hope it helps 
7 0
4 years ago
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