Answer:
Hadean eon: origin of earth
Archaean eon: oldest fossils of prokaryotic cells appear
Proterozoic eon: oldest fossils of eukaryotic cells appear
Paleozoic era: first tetrapods and insects appear
the cambrian explosion
Mesozoic era: dinosaurs evolve and radiate
origin of mammals
Cenozoic era: humans appear
major radiation of pollinating insects
The respiratory system to keep the body well oxygenated
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The demosome junctions wouldn't hold together causing the cells in the stomach to pull apart.
ɹǝɥʇɐɟ ǝɥʇ ʇou ǝɹɐ no⅄ ˙˙˙uı ǝɹɐ sʇlnsǝɹ ǝɥ⊥
Answer:
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1. Fever, cough, runny nose, sore throat, headache, trouble breathing
2. Your respiratory
3. Avoid touching your face and other people. Cough or sneeze in your elbow or in a tissue. Wash your hands, and disinfect clothing and your household. Wear a mask, and keep your distance
4. By contact. Such as touching or shaking hands or being close together
5. The pandemic is another piece of history. My opinion is neutral. It sucks, but we have to do the best we can to fix this problem
|||
Fever, running nose, cough, sneeze
|V 1. False
2. True
3. False
4. False
Explanation:
