Which type of stem and root does this plant have? Check all that apply. woody stem
herbaceous stem
cambium stem
taproot
fibrous root
xylem root

Use this diagram of an animal cell to answer the question. where does the first stage of cellular respiration occur? w x y z

Analogy- 1 is to arete as 5 is to cirque horn glacial valley hanging valley

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.