A small flowering plant called Crepis sancta traditionally lives in fields and produces light wind-carried seeds. Plants reproduce when these seeds land on available soil. Crepis sancta is also found in New York City, however these populations do not produce many wind-carried seeds, instead these seeds drop to the ground nearby. What is a likely reason for city populations to produce more nondispersing seeds than plants in the countryside

Which statement describes john tuzo wilson’s contribution to the theory of plate tectonics?

Which of the following was a characteristic of a dromaeosaur? modified front claw grasping with their forelimbs both a and b none of the above

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