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.
<span> myxoamoeba or swarmers </span>
Answer:
gonads, ovaries and testes
Explanation:
if im right, can i get the crown
Answer:
No.
Explanation:
Cardiac is a type of involuntary muscles.
Muscles like skeletal muscle, are voluntary. Examples are: Iliac, gluteus, abductor.
The cell theory of course had an important impact on later scientific discoveries as many different hypothesis and scientific discoveries were derived and concluded with the help of basics from this theory.
