Answer:
alleles
Explanation:
The traits an organism displays are ultimately determined by the genes it inherited from its parents, in other words by its genotype. Animals have two copies of all their chromosomes, one from each parent.
Weathering and erosion .. as weathering occurs breaking up the rock it can be transported through erosion .there are two categories of weathering processes: physical and chemical . although they are two very different processes that work together to break down rocks and minerals.