Answer:
Heterogeneous consists of the structure with various components or elements appearing to be irregular or variegated.
Explanation:
An example of this definition is a dermoid cyst in which has the components of a heterogeneous attenuation on CT.
I don’t think so because when you are observing you refer to facts but when you infer you have to hypothesize what the outcome will be
Hydrogen and helium are the two most abundant elements in the sun.
Answer: Possession of Valves
Explanation: Veins possess valves which ensures that blood flows in only one direction. Valves helps blood to flow back to the heart against gravitational force.
Arteries don't have valves because the pressure originating from the heart is capable of causing the blood to flow in one direction.
