What is a galaxy? Describe three different shapes that a galaxy may have. List the common components of a galaxy.

1 answer:

4 0

A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter. The word galaxy is derived from the Greek galaxias, literally "milky", a reference to the Milky Way.

Elliptical: These have a faint, rounded shape, but they're devoid of gas and dust, with no visible bright stars or spiral patterns. ...
Spiral: The Milky Way is one of the larger spiral galaxies. ...
Irregular: These are small, faint galaxies with large clouds of gas and dust, but no spiral arms or bright centers.

You might be interested in

The two reactions shown below represent processes that occur in living organisms.

Nimfa-mama [501]

Answer:

C. Sugar is broken down to release energy during cell respiration

Explanation:

In the picture sugar is one of the inputs of cellular respiration and energy is the output of it. Meaning sugar turns into energy.

8 0

3 years ago

To melt 4 kg of a solid, 106 J of heat is required. Which of the following expressions gives the heat of fusion of the solid?

Kaylis [27]

The answer you are looking for should be 10^6/4 j/kg

3 0

3 years ago

Partial nitrate reduction results in the formation of.

kap26 [50]

Answer:

Partial nitrate reduction results in the formation of nitrite and water

Explanation:

5 0

3 years ago

Write and explain in detail what is gene regulation

Ierofanga [76]

Gene regulation is the process of controlling which genes in a cell's DNA are expressed (used to make a functional product such as a protein). Different cells in a multicellular organism may express very different sets of genes, even though they contain the same DNA.

5 0

3 years ago

Made up of individual organisms of the same species is called what

Alinara [238K]

Answer:

individual organisms of the same species living in the same geographic location at the same time makes up a population.

Explanation:

7 0

3 years ago