Why is mendel's law of independent assortment not always valid for two or more phenotypical traits of an individual?

What evidence is there that convection occurs in earth’s troposphere?

Explain two reasons you think it is important for scientists to search for new ways to treat cancer

How is the national wildlife refuge system similar to the pacific region coastal program? a. both programs are concerned with providing habitats for wildlife b. both programs are primarily concerned with preserving fish species c. both programs have set aside 150 million acres of land d. both programs are under the u.s. fish and wildlife service