What is an invasive species?

Models are non-visual ways of coummincating how someone thinks about something in the natural world

You can tell from this karyotype that the individual is female because the karyotype has two chromosomes labeled

Which statement describes characteristics of planarians? a they live in oceans, are parasites, and reproduce only sexually. b they live in fresh water, are parasites, and reproduce only asexually. c they live in oceans, are free living, and reproduce sexually and asexually. d they live in fresh water, are free living, and reproduce sexually and asexually.