Lionfish must be

invasive species
in North America because they are
native to
North America and they have
harmful effects
positive effects
no effects

Lionfish are not native to North America and are therefore considered an invasive species in this region. They have harmful effects on the ecosystem as they are voracious predators, consuming large quantities of native fish and other marine organisms. Their introduction has caused declines in native fish populations and altered the ecological balance of coral reefs and other marine habitats.