Which two moods are used for situations that are contrary to fact or for the conditions under which a situation might occur? subjunctive and interrogative conditional and imperative subjunctive and conditional interrogative and indicative

Explain the importance of producers, primary consumers, secondary consumers. and decomposers in an ecosystem

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.

Drag each label to the correct location. each label can be moved more than once match the properties with the subatomic particle