Answer:
grass, shrubs, lichens, trees.
Answer:
Weight in mice is a polygenic trait
Explanation:
Her observation might be as a result of the weight trait being a polygenic trait. A polygenic trait is a trait are train that are controlled by two or more genes. Additive interactions of these genes can influence expression of the trait. Thus weight is expression of a trait influenced by two or more genes. This to knock out the trait, she has to all genes involved in the expression and not just one gene.
Answer:
B. not shown any evolutionary changes over the years