An experiment was done with six groups of children to see if scores on their weekly spelling tests were affected by the number of minutes of spelling practice they had each
day.
ind, variable =
dep. variable =

The bacteria found in soil is usually harmful and measures are taken to remove any traces of microorganisms. true or false

What are some characteristics of a free enterprise economy?

In order to study genetic mutations, scientists must study genetic material. which statement describes the genetic material scientists are most likely studying? a) they study alleles that contain chromosomes, which are rna.b) they study alleles that contain genes, which are chromosomes.c) they study chromosomes that contain genes, which are dna segments.