When animals move into and out of an area during normal cycles, it is referred to as:
O Emigration
O Migrations
O Immigration
O none of the above

In which situations is the principle of cross-cutting relationship useful in determining relative age?

Select the situation bellow that would produce a total displacement of zero. a. a trip to the moon and then to mars b. a horse galloping from one end of a field to another c. the criss-crossing path of a bug as it flies from flower to flower d.a round-trip ride to school and back

How energy flows through each level in this energy pyramid. is all the matter and energy from one level transferred to the next level?