Bucket of dirt is a mixture of many different particles. each kind of particle in a bucket of soil has unique properties. here are four particles that make up soil. what property would you use to separate the four particles?
a) size
b) color
c) the way it feels
d) the minerals present

Compare the depth of field when focusing with low power and high power. which power has the greater depth of field?

Compare the shapes of the bones of the human skull with the shapes of the bones of the human leg. how do the shapes differ? why are the shapes important?

During crossing-over, a. genetic material is exchanged between nonsister chromatids, resulting in new combinations of alleles. b. nonsister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. c. one homologous chromosome of a tetrad is exchanged with another tetrad, resulting in new combinations of alleles. d. sister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. e. genetic material is exchanged between sister chromatids, resulting in new combinations of alleles.