When all vegetation is removed from a site by human activity or by natural forces such as volcanic activity, species are the first to colonize the site?

The many volcanoes located along the edge of the pacific ocean make up the ring of fire. how does subduction play a role in the volcanic activity in the ring of fire?

Which of the following sex and generation combinations directly produces the pollen tube of angiosperms? a) male gametophyteb) female gametophytec) male sporophyted) female sporophyte

Which of the following is a common danger of commercial fishing?