well A.) is a dog B.) is a wolf C.) is a leopard and D.) is a skunk
option d is the most related to its self
I’m not exactly sure, but I’m thinking it may be A . I just learned about this unit previously .
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.
Prokaryotic And Eukaryotic :)
Velocity can vary as long there is specific direction (displacement)
Speed has no direction therefore change in speed is not necessary the velocity...
Velocity is also in a specified direction