Which is a mark of a galaxy formed by collapse?(1 point)

uniformly young stars

same age stars

abundant gas and dust

a mix of young and old stars

The Milky Way has changed course to head toward Andromeda.

All galaxies will collide at some point.

The two galaxies have collided previously.

Astronomers have observed their movements over time.

Same age stars is a mark of Galaxy formed by collapse

Explanation:

Before a galaxy can be formed, the materials that help in building the galaxy rotate at a speed, it's the come together and collapse by it self due to it's gravitational pull. When it's collapse globular are formed and it's away from it's nucleus. The clusters this give rise Halo stars which are stars of the same age.

i got something better   a catchphrase here it is

ahem  

ahem

what the squwock

explanation:

answer;

-vessels in the chest

the diagnosis of angina pectoris literally means "vessels in the chest"

explanation;

-angina pectoris is the medical term for chest pain or discomfort due to coronary heart disease.it is the chest pain due to an inadequate supply of oxygen to the heart muscle. the pain is typically severe and crushing, and it is characterized by a feeling of pressure and suffocation just behind the breastbone.

agina pectoris is caused by reduced blood flow to your heart muscle. the blood carries oxygen, which the heart muscle needs to survive. when the heart muscle isn't getting enough oxygen, it causes a condition called ischemia