Pulmonary valve - connects right ventricle and pulmonary trunk (which divides into right and left pulmonary arteries). It is a semilunar valve
D) neither photosynthesis nor respiration.
Answer:
option 3 in 1st one and option 4 in 2nd one I think
Answer: B
Explanation:
Hydrogen love water (H20) wouldn’t make sense if they burned in water