Add a url where u found ur information from i just need help with the one thats circled

Name the plastid and pigment likely to be found in the cells of (a) petals of sunflower (b) ripe tomato.

Hey me with this one❤☺❤ how do you say that a cell also has a life span and death like an organism? give one example.

Vessels draining the myocardium of the heart, open primarily ,into which chamber?