How can you identify a tap root system?
a. there are secondary roots of different sizes
b. there is no primaryroot. all roots are thin and almost of the same size
c. there is a prominent primary root from which secondary roots branch out

Which property is characterized by the ability to bend? a lustrous b conductive c malleable d opaque

The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.

Which pedigree symbol is used to represent a female carrier of a recessive x-linked trait? поө0 || save and exit submit