Yes because places that are poor can’t pay for as many treatments as others
your answer is the third one.
Usually representing a solid you used a 3d model.
And there are balls in them representing atoms and in a video it shakes or vibrates to represent the motions of a solid.
The length of a vessel is directly proportional to its resistance: the longer the veessel, the greater the resistance and the lower the flow. As with blood volume, this makes intuitive sense, since the increased surface area of the vessel will impede the flow of blood.
Answer:
B, food production
Explanation:
The plant is producing food for itself
A) One species always outcompetes the other until only one species remains.