census
Both the Aztec and the Spanish calendars had observations for work for the people. The two calendars also had income observations for people.
Two types of curved mirrors are: concave and convex.
The two main types of rockets are, Solid Fuel and Liquid Fuel
two types of star clusters are Open clusters and globular clusters
outline or contrast
Quantitative and Qualitative. :)
The to types of microscope are as following : 1. Simple microscope 2. compound microscope differences between these both is as following: simple microscope has one Len but compound microscope has two Len.
Color Change and Smell
All the tissues are shaped differently. and the cells are different colors
SNP's
A number of differences between two regions can result in sectionalism.
The differences between the two families hiding together were their different opinions.
Qualitative and Quantitative.
what were two key differences between the north's economy and the south's economy?
contain same genes, but uses different combinations of them.
The null hypothesis is the statement that there is no relationship between two observations.
there is no answer