Atmospheric C02 from the past 500,000 years is measured by looking at: A: Ocean Cores
B: Ice Cores
C: Tree rings
D: All of the above

Diagram of the evolution of land plants?

Linda and julia are trying to determine whether their ideas are scientific or pseudoscientific. linda's idea is free of bias. julia's idea gives the same result when tested repeatedly. which statement is correct about linda and julia's idea?

The bacteria inside a tube worm would be analogous to what organism in the ocean ecosystem near the waters surface? a. photosynthetic algae b. shrimp c. clown fish d. parasitic lamprey