Answer:
1/8(12.5) if the answer is correct plz mark me as brainliest.
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.
The answer is “Organisms that contain functional recombinant DNA
<span>How does a hypothesis help scientists understand the natural world?</span>
By performing controlled experiment that are tested by gathering more data based on observations
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