1. which of the following is true about life in the precambrian? a) throughout the entire precambrian there were only single-celled organisms on earth b) there was no oxygen on earth throughout the entire precambrian. c) there were no mammals on earth.239200d o lo d) all life was marine (i. e., found in the ocean) e) all living organisms on earth at this time had a nucleus.

Which statement describes why the us forest service is important a-it protects ecosystems, supervises public access of lands, and manages wilderness areas. b-it supervises public access of lands, manages wilderness areas, and enforces federal wildlife laws. c- it manages wilderness areas, enforces federal wildlife laws, and foreign governments with international conservation efforts. d- it enforces federal wildlife laws, foreign governments with international conservation efforts, and protects ecosystems.

Acounterculture is composed of a group of people who the dominant culture.

The pacific plate is an oceanic tectonic plate. how did a hot spot and the pacific plate interact to form the hawaiian islands?