Which best explains what happens during crossing over? the chromosomes have electrical connections that allow them to line up randomly. paired chromosomes overlap and portions of dna switch between chromosome. genetic material is switched because the chromosomes line up independently. chromosomes line up randomly and cross genetic information between unpaired chromosomes. which best explains what happens during crossing over? the chromosomes have electrical connections that allow them to line up randomly. paired chromosomes overlap and portions of dna switch between chromosome. genetic material is switched because the chromosomes line up independently. chromosomes line up randomly and cross genetic information between unpaired chromosomes.

a community that experiences major changes undergoes progress

1. loamy sand is about 80% sand with 10% clay and defined mostly by sand particles with some clay to provide structure and fertility. the sand particles are easily visible and the soil holds structure but breaks apart easily.

2. scott sand can improve his soil quality by incorporating more silt and organic matter into the soil. peat moss and organic matter can also be incorporated.

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.