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Biology-Related Homework Help Cell Biology Topic started by: walterjr on Feb 3, 2018



Title: Employ the principles of evolution discussed in this chapter to explain how the specific features ...
Post by: walterjr on Feb 3, 2018
Employ the principles of evolution discussed in this chapter to explain how the specific features and predatory behaviors of some primitive eukaryotes may have given them a selective advantage over others 1.5 billion years ago.
 
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Title: Employ the principles of evolution discussed in this chapter to explain how the specific features ...
Post by: abcdef1244 on Feb 3, 2018
The Earth's atmosphere became oxygen-rich roughly 1.5 billion years ago. If some primitive predatory eukaryotic cells were similar to modern-day protozoans, they may have been mobile and able to engulf other cells. These characteristics would have been advantageous in the face of a changing atmosphere, and the establishment of a symbiotic relationship with an engulfed aerobe would have been selected for in the eukaryotic cell populations.