How do we use relitve dating to determain the age of a fossil ,artifact ,or rock layer

What is the genotype for the following phenoytpe: a male fruit fly that is heterozygous for eye color and homozygous dominant for wing size. a eeww b eeww c eeww d wewe

Of your good in bio kusing a series of preliminary observations; pstate a problem developed from these observations, formulate a hypothesis, design an experiment to test the hypothesis

Explain why ecosystem diversity results in species diversity in a healthy biosphere