What is the ultimate source of genetic variation? in other words, where does genetic variation come from? i need !

What evidence did mendel find that supported his law of independent assortment? a. dominant traits are expressed when there is a dominant allele. b. traits do not affect the inheritance of other traits. c. some traits have three or four different alleles. d. plants and animals can both reproduce sexually.

Models are non-visual ways of coummincating how someone thinks about something in the natural world

Identify the examples in which sam interacts only with natural resources