Answer:
internal migration: moving within a state, country, or continent.
external migration: moving to a different state, country, or continent.
Explanation:
By muscles. Muscles move body parts by contracting and then relaxing. (Muscles pull on the joints, allowing us to move.) Muscles can pull bones, but they can't push them back to the original position. So they work in pairs of flexors and extensors.
Examples:
+Jumping: form of locomotion or movement
+Running: __________________________ (As above)
A
Pollution and Population are correct
Photosphere, Chromosphere, and the Corona
The following graph shows a proportional relationship.
What is the constant of proportionality between yyy and xxx in the graph?
Constant of proportionality ==equals
It would get warmer in the united states if the jet stream moved north