Answer:
1.) stromatolites
2.) photosynthesis
3.) Ordovician
4.) Cambrian
5.) oxygen
6.) As Earth cooled, carbon dioxide dissolved in the early ocean. Cyanobacteria consumed carbon dioxide and converted it to oxygen. Methane was removed from the atmosphere as oxygen was produced, eventually leading to the Cambrian Explosion.
7.) Metabolic processes that use oxygen produce more energy than anaerobic metabolism. Simple diffusion of oxygen would limit the size of a multicellular eukaryote, but animals evolved ways to transport oxygen to their tissues, which permitted an increase in size.
Explanation:
From Penn
1. A
2. E
3. C
4. B
5. F
6. G
7. D
Reproductive isolation. Species refer to the group of organisms which share common morphological features and can interbreed and produce a viable offspring. Thus, the organisms of one species are reproductively isolated from the organisms of other species
Answer:
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Explanation:
These pathogens include, but are not limited to, hepatitis B virus (HBV) and ... Contaminated Laundry means laundry which has been soiled with blood or other ... (3) Any other procedure involving the potential for occupational exposure to ... Food and drink shall not be kept in refrigerators, freezers, shelves, cabinets
