Answer:
Electron microscope would be used for if,
C) details of cell structures needed to be distinguished.
Explanation:
- The general principal of electron microscopy is analogous to light microscopy except that it uses electrons to analyse the specimen instead of light.
- Electron microscopy focuses a beam of electron on the target sample and records the difference in absorption by different surfaces.
- Electron microscopy is used to get the detailed structure of cells and surface features of various viruses and bacteria.
- However, it is not possible to view living biological samples through electron microscope because high velocity electron have immense energy to kill living cells.
- These samples are thus, fixed and then viewed.
The removal of the cell membrane.
The membrane regulates homeostasis by letting "stuff" (general term) in and out of the cell.
size hence streams are little and rivers are bigger than streams because a stream connects between two or more rivers
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B is not one of the three domains of life
How did stromatolites contribute oxygen to the early atmosphere?
by weathering of rocks
through photolysis
through methane degradation
through photosynthesis
Answer:
by weathering of rocks
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