Biology

Laney

27 May, 06:40

Lola makes a list of what she learned about spiral

galaxies.

Which statement does Lola need to correct, and why?

1. They are made of bulges and arms.

2. The bulges contain mostly old red stars.

3. The arms contain mostly old blue and blue-white

stars.

4. Spiral galaxies are made of gas and dust.

Statement 1 because spiral galaxies do not have

arms.

Statement 2 because the bulges contain mostly

young red stars.

Statement 3 because the arms are made of mostly

young blue and blue-white stars.

Statement 4 because spirals galaxies contain little

to no dust.