Indicate the color of blood in each of the following cases: 1. Blood entering the lungs (alveoli):
2. Blood leaving the lungs (alveoli):
3. Blood entering the organs (cells):
4. Blood leaving the organs (cells):

1) blue

2) red

3) red

4) blue

Explanation:

organs need red blood and they get rid of blue blood. the lungs are what changes blue to red, so the lungs take in blue and expels red blood.

the answer would be d

answer: blah

explanation:

bc blah