7 Euglena is a unicellular organism that feeds on bacteria

Last updated: 10/10/2023

7 Euglena is a unicellular organism that feeds on bacteria and uses CO as a carbon source Which describes the nutrition of this organism A Autotrophic only B Heterotrophic only C Saprotrophic only D Autotrophic and heterotrophic 8 Which characteristic of water vapour classifies it as a greenhouse gas A It absorbs and then re emits some of the long wave radiation emitted by the Earth s surface B It prevents short wave radiation from reaching the Earth s surface C It absorbs UV radiation but does not re emit it D It absorbs infra red radiation but does not re emit it 9 By which mechanism do greenhouse gases contribute to global warming A Their higher concentration absorbs more long wave radiation coming from the Sun B Short wave radiation emitted from the Earth s surface increases with their concentration C They absorb higher amounts of long wave radiation emitted from the Earth s surface as their concentration increases D They absorb higher amounts of short wave radiation caused by increased combustion of fossilized organic matter