Mass and_ are the two things that affect the strength of the gravitational force
A force
B weight
C distance
D time

The study of interaction between living organisms and their enviroment is called (a) phytogeography (b) ecology (c) phytosociology (d) ecosystem

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat

The chromosomal structure that limits the number of cell divisions of a cell is the the chromosomal structure that limits the number of cell divisions of a cell is the kinetochore telomere histones centromere