Which statement best describes arteries? a) all carry oxygenated blood to the heart. b) all carry blood away from the heart. c) all contain valves to prevent the backflow of blood. d) only large arteries are lined with endothelium.

Asap what occurs after cytokinesis is completed at the end of meiosis 1?

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

What is the primary function of the nervous system?