How Changes in the Atmosphere, Eukaryotes, and Multicellularity Has Occurred and Influence Life on Earth
About 2.5 billion years ago, oxygen began slowly to accumulate in the atmosphere, as a result of the photosynthetic activity of the cyanobacteria. Those prokaryotes that were able to use oxygen in ATP production gained a strong advantage, and so they began to prosper and increase. Some of these cells may have evolved into modern forms of aerobic bacteria. Other cells may have become symbionts with larger cells and evolved into mitochondria. As the amount of oxygen and other atmospheric gasses increased, they started blocking out deadly u.v. rays from the sun. …
- How Changes in the Atmosphere, Eukaryotes, and Multicellularity Has Occurred and Influence Life on Earth
- Water Pollution, Is It as Big of a Problem as We Think?
- What Have We Learned From Three-Mile Island After 17 Years?
E-pasta adrese, uz kuru nosūtīt darba saiti:
Saite uz darbu: