Answer:
H. Immue and digestive
Explanation:
The immune system fights pathogens protects us from them, the digestive system destroys pathogens that may be in our stomach or intestines.
Answer:
I think its b but I'm not sure
don't hate me if I'm wrong
A seed must be:
- light
- have gliders (wings)
- be formed like a parachute
- not to strongly attached to the flower
The left side of your heart receives oxygen-rich blood from your lungs and pumps it through your arteries to the rest of your body.