How did the geocentric theory change over time as increased scientific knowledge led to increased consensus within the scientific community?
a. scientists demonstrated that earth revolves around the sun.
b. scientists proved that earth was the center of the universe.
c. the sun began to rise in the east several centuries ago.
d. the observations for a geocentric solar system became increasingly well documented.

Identifying the elements of hypothesis-based science this experiment is an example of hypothesis-based science. what question did the researchers ask? what question did the researchers ask? can predation result in selection for color patterns in guppies? do female guppies prefer to mate with males with bright color patterns or drab colors? do male guppies in pools with pike-cichlid fish have brighter color patterns than females in the pool? do killifish prefer to prey on juvenile guppies or adult guppies?

What links the two strands in a dna helix together in the middle? a. phosphate groups b. sugar rings bonded together c. proteins d. bases with hydrogen bonds

What would happen if the tubing with the yellow band was placed in a beaker of distilled water?