red color of the tomato due to the lycopene pigment in chromoplast, and the sunflower plastid is chromoplast
there are plastid colour pigment organelle containing a verity of colours
plastids contain of three organelles 1) chloroplast (2) chromoplast (3) lecoplast
the verities of colours are present in chromoplast rather than green so, petals of sun flavour colour is due to chromoplast.
blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.