how does an invasive species differ from a native species, according to paragraph 2 ?
a. It is more suited to live in an environment than native species
b. It requires a different set of nutrients than the native species
c. It is introduced from outside of the normal environment
d. it does not contribute to the health of the ecosystem
how do Invasive species threaten local species, according to paragraph 3 ?
a. they reproduce more quickly than predators in area
b. they crowd out the natural predators in an area
c. they feed upon a specific native species and use them for nutrients
d. they take space and nutrients from local species
according to paragraph 2, how did the russian olive species first appear in north america ?
a. lis seeds were mistakenly planted by explorers
b. It was used land to landscape areas by humans
c It was brought from america to europe by humans
d. It evolved from native species in north America