8.The two claims we investigated in the Geology on Mars unit is that flowing water or flowing lava could have formed the channel on Mars. *

true
false

Are the earth's ocean floor and continents the same age geologically? why or why not?

Several bird species feed in a certain species of tree. each bird species feeds in a different part of the tree. which statement is true of these bird species? a. they have adapted to different niches due to competition b. they have a carnivorous relationship with the tree species. c. they have adapted to different niches due to predation d. they have a symbiotic relationship with the tree species.

How do disease caused by bacteria and disease caused by viruses react to antibiotics