Answer:Invasive species are primarily spread by human activities, often unintentionally.
Explanation:
People, and the goods we use, travel around the world very quickly, and they often carry uninvited species with them. Ships can carry aquatic organisms in their ballast water, while smaller boats may carry them on their propellers
Answer:
Through NATURAL EVENTS, MIGRATION, HUMAN ACTIVITIES,
Explanation:
Invasive species can travel into another habitat by NATURAL EVENTS like disaster, hazards that could threaten the adaptation of a specie in a home habitat.
Also,
HUMAN ACTIVITIES that's are completely unintended could lead to transfer of species. This could occur through travelling, journeyings by road or sea.
