Carbon is removed from the atmosphere by producers (e. g. algae) who use it in . By consuming plant matter, animals obtain compounds

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above

Which of the following are not included as modern mammals that evolved during the eocene epoch? primates artiodactyls perissodactyls none of the above

Which of the following is likely not involved in this example of ecological succession? a) the rotting remains of plants add to the fertility of the soil. b)the soil becomes so fertile that eel grass is replaced by other plant species. c) the roots from plants stabilize the sediment, keeping it in place. d) the concentration of salt becomes so high that all plant life is destroyed.