Answer:
The basic difference between SEM and TEM is that TEM generates an image with the assistance of radiation that goes through the specimen, while the images generated by the SEM take place with the assistance of electrons getting released from the surface of the specimen.
SEM is primarily used to examine the composition of the surface, with the help of SEM one can study the microbes present in the ecological niche like in the lining of the gut and human skin. Due to its great depth, it is considered the electron microscope analog of a stereo light microscope. It helps in providing complete images of the cells present on the surface, which are not easy to get with the help of TEM. Due to its enhanced functionality, it can also be used for size determination and particle counting, and also for process control.
Geosphere is the sphere containing sediments as well as rocks
- hydrosphere can be regarded as the sphere which contains total amount of water that exist on a planet.
- The geosphere can be regarded as the collective name that is used to call the atmosphere of the earth lithosphere as well as hydrosphere, and cryosphere.
- The geosphere can be regarded as sphere which contains the rocks as well as minerals on Earth
- The geosphere is also the sphere with abiotic/non-living parts of soils as well as the skeletons of animals, it also contains sediment as well as rocks.
- An atmosphere can be regarded as the layers which consists of gases which envelope a planet.
Therefore, geosphere is collection of spheres containing sediments as well rocks.
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B. Mitochondria
The process of cellular respiration is essentially when oxygen and carbon transfuse themselves together to create carb on dioxide, which in turns creates energy.
The entire process is formed in the powerhouse of the cell, or in other words, the mitochondria.
A part of this question that may have been confusing is the answer, "lungs". Since respiration is correlated to the lungs, you may have been confused. However, this is a process that occurs within your cells, so on a small scale than your entire body.
Answer:
When starfish were removed from their environment, the species richness of that area went down. This was because the starfish ate the mussels, and when the starfish were removed, the mussels became abundant and preyed on many of the other species.
This experiment showed that the starfish were a keystone species. A keystone species is a species that has a low biomass but a large impact on the community they are living in.
