1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
valkas [14]
3 years ago
11

Which characteristics describe a spiral galaxy?

Biology
2 answers:
Vaselesa [24]3 years ago
7 0
The large majority of spiral galaxies are flat, rotating disks. Within the disk, there are stars, dust, and gas. The disk also contains spiral arms and a central concentration of stars known as the bulge of the galaxy.
Vikki [24]3 years ago
5 0

Answer:

Spiral galaxies are named after their morphology because they have a clear spiral structure around their nucleus when viewed perpendicular to their plane. In censuses they appear as the most common typology.

The spiral galaxies have young and old stars, suggesting that they did not form from another older galaxy or from an ancient clash between two galaxies. In the nucleus there is a predominance of older stars and in the arms there is a greater activity of star formation. In this way, the nuclei of the spiral galaxies have a more orange hue and the arms a more blue hue.

Spiral galaxies have diameters ranging from 20,000 light years to over 100,000 light years. Its masses are estimated to range from 10 billion to 10 trillion times the mass of the Sun. The Milky Way, where the solar system is located, is a large and massive spiral galaxy.

You might be interested in
HELP ASAP I WILL GIVE BRAINLIST
adelina 88 [10]

Answer:

1) CO₂

2) 0.2551 g

Explanation:

The balanced reactions are:

CaCO₃ + 2HCl → CaCl₂ + H₂O + CO₂

MgCO₃ + 2HCl → MgCl₂ + H₂O + CO₂

1) The gas produced is CO₂.

2) Calculate mass of CaCO₃:

(0.5236 g) (0.4230) = 0.2215 g CaCO₃

Convert to moles:

(0.2215 g CaCO₃) (1 mol / 100.1 g) = 0.002213 mol CaCO₃

Find moles of CaCO₃:

(0.002213 mol CaCO₃) (1 mol CO₂ / mol CaCO₃) = 0.002213 mol CO₂

Convert to mass:

(0.002213 mol CO₂) (44.01 g / mol) = 0.09738 g CO₂

Calculate mass of MgCO₃:

(0.5236 g) (0.5770) = 0.3021 g MgCO₃

Convert to moles:

(0.3021 g MgCO₃) (1 mol / 84.31 g) = 0.003583 mol MgCO₃

Find moles of MgCO₃:

(0.003583 mol MgCO₃) (1 mol CO₂ / mol MgCO₃) = 0.003583 mol CO₂

Convert to mass:

(0.003583 mol CO₂) (44.01 g / mol) = 0.1577 g CO₂

Total mass of CO₂:

0.09738 g CO₂ + 0.1577 g CO₂ = 0.2551 g CO₂

8 0
3 years ago
Summarize What adaptations do cephalopods have to live an active way of life?
Alina [70]

Answer:

The answer is below

Explanation:

The adaptations that cephalopods have, to live an active way of life are numerous, some of which are:

1. Development of a SIPHON. This is a form of the adapted foot that supports survival such as swimming and directional movement.

2. A powerful and flexible arm for movement and protection

3. Using ink to form visual distractions, against predators.

Note that a good example of cephalopods are known as octopus

7 0
2 years ago
26. If there is a waxing gibbous moon on June 2, then when is the next waning gibbous phase?​
Shkiper50 [21]

Answer:

June 30th or July 31st

Explanation:

a waxing gibbous moon occurs every 29.531 days

8 0
3 years ago
These are not in order, Can u please put them In order
Natasha2012 [34]

Answer:

3 / 4 / 5 / 2/ 1

Explanation:

Hope this helps.

6 0
1 year ago
Question 1
masha68 [24]

Answer:

flaccid, hypertonic.

Explanation:

It became flaccid due to the low water potential in solution outside of potato cells, hence causing water to leave the potato cells & move into the solution.

Hypertonic solution simply means the concentration of solute is higher & water potential is lower than in potato cells.

8 0
3 years ago
Other questions:
  • Rushing, fatigue, distractions, and complacency are _______ medical errors
    6·1 answer
  • Which of the following would be produced by meiosis:
    9·1 answer
  • The human genome is the basic genetic code, or blueprint, for the transfer of traits from parents to offspring through – . Study
    7·1 answer
  • Which would you expect to be the most active on a cold day?
    11·1 answer
  • Can somebody sort these correctly? 6/10 are correct! Mitosis vs Meiosis
    11·1 answer
  • The two lower leg bones are called the _____ and the _____.
    5·2 answers
  • Analyze
    13·1 answer
  • Why are the leaves important to a plant?
    8·2 answers
  • The food web consists of several different smaller _____.
    14·1 answer
  • Which of the following living things would occupy the highest trophic level?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!