Changes in the world around it
causes are change the color and viscosity saliva
http://wiki.answers.com/Q/Summarise_the_causes_of_gene_and_chromosome_mutation_and_suggest_how_these_changes_can_bring_about_evolutionary_changes_by_the_process_of_selection_using_named_examples"
Because plants were designed too be effient, and they will make minor changes to promote efficiency
Certain chemicals and radiation in the environment can cause a reaction or mutation in an organism. Such changes may alter organisms genotype or phenotype. Chemicals that induce changes in organisms DNA is called mutagens.
what causes changes to earths landform
the revolution causes the changes of whether and the wherther causes the change in seasons. the revolution causes the changes of whether and the wherther causes the change in seasons. the revolution causes the changes of whether and the wherther causes the change in seasons.
Diabetes causes rapid vision change,retina changes are big problem (NPDR)
Huge temperature changes.
the tides are not affected by seasonal changes
Erosion causes physical changes.
stuff
Force
impulse
physical, there is nothing going on but friction, which causes heat, which causes fire.All three are physical.
Climatologists study the climate, its causes and changes.
Varible