The oxygen revolution changed Earth's environment dramatically. Which of the following took advantage of the presence of free oxygen in the oceans and atmosphere?
A) the evolution of cellular respiration, which used oxygen to help harvest energy from organic molecules
B) the persistence of some animal groups in anaerobic habitats
C) the evolution of photosynthetic pigments that protected early algae from the corrosive effects of oxygen
D) the evolution of chloroplasts after early protists incorporated photosynthetic cyanobacteria
E) the evolution of multicellular eukaryotic colonies from communities of prokaryotes
The four ways in which animals exchange heat with the environment are radiation, evaporation, convec
Erythrocytes contain large amounts of the oxygen-transporting protein
Temperature Profile of Earth’s Atmosphere
A backpressure tool can be made by using an oxygen sensor housing and using epoxy or braze to hold ...
The Green Revolution and Conventional Irrigation
In 1974 a UC Berkeley group fired an oxygen nucleus at a californium target. Giv