Look at the diagram below. Ray 1 from the Sun moves through air and falls on the surface of a lake. Ray 2 is a ray which travels from the surface of the lake at the point Ray 1 strikes the lake, and moves towards air. Ray 1 and Ray 2 make the same angle with the surface of the lake. Ray 1 bends towards the vertical when it enters the lake as Ray 3
PLEASE HELP
Which statement is correct about Ray 3?

Ray 3 is the part of Ray 1 which is reflected.
Ray 3 is the part of Ray 1 which is refracted.
The part of Ray 1 which is absorbed by the lake is represented by Ray 3.
The angle Ray 3 makes with the lake equals the angle Ray 1 makes with the lake.

a- all cells come from pre-existing cells

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.

answer; an inhibitory postsynaptic potential;