Which sequence best represents the flow of energy through an ecosystem?
(1)sun → green plants → herbivores → carnivores
(2)sun → herbivores → producers → consumers
(3)green plants → carnivores → consumers → herbivores
(4)consumers → carnivores → herbivores → producer

The sequence, from the choices that you provided, that best represents the flow of energy through an ecosystem is sun-green plants-herbivores-carnivores. The correct answer choice will be 1. 

If these are the missing choices: a. to determine skin temperature, place the back of your hand against the patient's skin.b. determine body temperature by touching the patient's hands and feet.c. skin temperature will tell you very little about this patient's condition or well-being.d. the patient's skin temperature and color will likely be warm and red.my answer is: a. to determine skin temperature, place the back of your hand against the patient's skin. using the back of the hand to check for temperature rather than the palm is more effective because the back of the hand has more nerves that can feel and transmit the temperature than the palm.