Which statements are true for chloroplasts? select the three that apply. a. they are the sites of reactions that convert chemical energy from food molecules to atp. b. their inner membrane has infoldings called cristae. c. their matrix contains enzymes that function in cellular respiration. d. they have membranous sacs called thylakoids that are surrounded by a fluid called stroma. e. they contain the green pigment chlorophyll. f. they are the sites of reactions that convert solar energy into chemical energy.

The correct answers are options d, e and f.

Explanation:

Chloroplasts refer to a double-membrane bound organelles, which exhibits an internal membrane system known as the thylakoids. The thylakoids are found in a fluid known as stroma. The thylakoids are the location for undergoing light reaction and possess chlorophyll pigment.  

The captivation of solar energy takes place by the green color pigment chlorophyll, which is eventually used to generate NADPH and ATP while undergoing light reaction. Stroma is the location for dark reactions, which produced glucose from carbon dioxide.  

a. to encourage apoptosis

the two answers are a, the population of birds with large beaks will increase on the island, and c, the trait for large beaks will be passed on to future generations through natural selection. the reason for that is because if the birds that have beaks developed for eating small seeds lose all of their food, they will go hungry and eventually starve because they physically cannot eat the large seeds, therefore making the population of large beaked birds higher. also, if the trait of large beaks are dominant on the island over small beaks, then over time the large beaked birds will reproduce more and more, while the smaller beaked birds will reproduce less and less because they can't survive with the food provided. that leads to the trait of small beaks disappearing and the trait of large beaks taking over the island.