Earth Science c/o crayfish

Question

1. there are over 400 species of crayfish in North America.  One species, the Virile crayfish has slowly expanded

each coast to the waters of Montana.  there it encounters the Calico crayfish, whose numbers re now declining.  this is an example of

a.  intraspecific competition

b.  interspecific competition

c.  commensalism

d.  mutualism

e.  none of these

Answer 1

Hi There! Check out my vid for a short lesson.

Intra means same species, inter means differefent species.

They are now competing for resources, and they are different species, so it's interspecific competition,