How did the human population change with the development of agriculture ?
a. the population increased
b. the population did not change
c. the population became extinct
d. the population decreased

Each pair of clay balls represents two planetesimals. if each planetesimal is composed of the same material and is separated he the same distance, which pair experiences the frayed gravitational attraction?

Which zone within the open-ocean zone is home to the most organisms? deep zone surface zone intertidal zone transition zone

3differences between bacteria and other 2 cells