The "Spanish" influenza pandemic of 1918–1919, which caused ≈50 million deaths worldwide, remains an ominous warning to public health. Many questions about its origins, its unusual epidemiologic features, and the basis of its pathogenicity remain unanswered. The public health implications of the pandemic therefore remain in doubt even as we now grapple with the feared emergence of a pandemic caused by H5N1 or other virus. However, new information about the 1918 virus is emerging, for example, sequencing of the entire genome from archival autopsy tissues. But, the viral genome alone is unlikely to provide answers to some critical questions. Understanding the 1918 pandemic and its implications for future pandemics requires careful experimentation and in-depth historical analysis.
1. rise of angiosperms
2. rise of chemoautotrophs and photoautrophs
3. rise of multicellularity
4. rise of bryophytes
5. rise of gymnosperms
6. rise of eukaryotes
7. rise of cyanobacteria
Answer:
The nucleus is found in both plant and animal cells along with the vacuole
Explanation:
The three different skeletal designs that give a body its shape are:
Hydrostatic skeleton-contraction of muscles occur for changing cooler, due to which movement is caused.
Exoskeleton-external skeleton composed of calcium carbonate and chitin
Endoskeleton-body's internal system made of hard mineralised components.
Here is how biologist study concept maps.
BIOSPHERE:
<span>ECOSYSTEMS:
</span>
COMMUNITIES:
POPULATIONS:
<span>ORGANISMS: </span>
ORGANS AND ORGAN SYSTEMS:
<span>TISSUES: </span>
<span>CELLS: </span>
ORGANELLES:
Hope my answer would be a great help for you. If you have more questions feel free to ask here at Brainly.
