Explain the difference between position and distance.

Position is the location of the object (whether it's a person, a ball, or a particle) at a given moment in time. Displacement is the difference in the object's position from one time to another. ... Displacement is a vector quantity (direction matters), where as distance is a scalar (only the amount matters).

answer: accepted answer: aquatic animals use the oxygen dissolved in water to carry out respiration. since the amount of dissolved oxygen in water is low as compared to the amount of oxygen in the air, therefore the rate of breathing in aquatic animals is much faster than it is in terrestrial animals.

explanation:

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.