What is the imaginary line that runs from the geographic north to south pole? a. the equator b. earth's axis c. the plane of the ecliptic d. the antarctic circle

Can someone me? i need to have this done as soon as possible! i'm putting 20 points on this!

Lomexico, central america, and the caribbean: mastery testselect the correct answer.which of the following was the leading cause of death among native americans after the arrival of europeans? a.conquistadorsb.diseasec.starvationd. warreset

What is the amount of organic matter in all living organisms in a habitat called?