Please help- im failing this subject and this is the last retake- i dont really want my asz beat today so please answer quickly i have 20 more minutes, im timed- ill do anything i possibly can if you actually help- i dont have many points.
Which of the following correctly identifies the most productive layer of a soil profile?

topsoil, just below undecomposed organic matter

parent material, just above bedrock

undecomposed organic matter, at the very top

subsoil, between topsoil and parent material

d. organisms have cells with different shapes and functions.

you know that this symptom is misleading and quite often is related to: heart attack

a heart attack is a condition that occurs when the blood flow that transports oxygen to the heart muscle is damaged or cut off completely. the coronary arteries that supply the heart muscle with blood flow can be blocked by the accumulation of plaque. also, when the plaque within the heart artery breaks, it creates blood clot that can also hinder the blood flow. men that are over 45years of age and women that are over 55years of age are at risk of having a heart attack. the symptoms of a heart attack include chest discomfort, chest pain, coughing, and shortness of breath.