I'm not sure but it might be C
Answer:
Blood is carried away from the heart by arteries. Blood that is rich in oxygen. Blood that is low in oxygen is returned to the heart by veins. there is more pressure in arteries than in veins.
Answer:
It's a deletion, a loss of one or more nucleotides
Answer:
gymnosperms are more successful around water bodies
Due to photosynthesis, plants convert Sunlight and Carbon Dioxide into Oxygen. All living things breathe in this gas (Oxygen).
