Which of the following is true of chloroplasts? a. they're found in animal cells. b. they're composed of a liquid-filled space known as the thylakoids. c. they're full of flattened stacks of membranes called stroma. d. they're the main site of photosynthesis in autotrophs.

Been sitting here trying to take this test and don't know this answer! place the events of a feedback mechanism associated with body temperature in the correct order. ·nerve cells send message from skin to the brain ·body returned to normal temperature around 98.6 degrees f ·temperatures regulation center in the brain sends out signals ·body temperature exceeds 98.6 degrees f ·sweat glands throughout the body activate to cool off skin surface it is a 1 through 5 question in biology!