A world-class runner can reach a top-speed of 11 ms^-1 in the first 15m of a race. Calculate the average acceleration of the runner.

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat

Hydrilla (hydrilla verticillata) is an invasive aquatic plant and one of the most serious aquatic pests in florida. hydrilla has already been introduced to hundreds of bodies of water throughout florida, hydrilla is difficult to control because it grows rapidly and survives in many different water depths and conditions. hydrilla • describe how hydrilla affects native plant and animal species. include both a biotic and an abiotic limiting factor. • suggest one biotic and one abiotic recommendation that could slow the spread of hydrilla

Which macromolecule catalyzes chemical reactions this be considered enzyme chemical reactions thus he considering enzymes