Electron microscopes use _beam of electrons___ in order to allow for higher magnification and more detail when viewing specimens.
Explanation:
A beam of electrons has a shorter wavelength than normal light used in light microscopes, by approximately a factor of X 100000. Therefore, electrons microscope have the inherent attribute of having a very high resolution. They have been used to discover very small organelles in cells such as the ribosomes and mitochondria that cannot be clearly viewed even with the highest resolution in light microscopes.
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Answer:
True
Explanation:
This is because sacromere is the basic unit of cardiac muscles which is made up of thin and thick filaments. Cardiac muscle is consist of the contractile cells of the heart which it's appearance is striated as a result of alternating thick and thin filaments which is composed of myosin and actin. Actin and myosin are both firm contractile protein filaments, the actin form the thin filaments, and myosin form thick filaments.
I can’t see the image but CO2 is produced in the mitochondria during respiration
The mitochondria looks like this:
Answer:
The correct answer is - all of the above.
Explanation:
Rheumatoid arthritis (RA) causes aggravation of the linning of the joints, particularly in the hands, knee, and fingers. Signs and side effects incorporate red, swollen, excruciating joints, and diminished flexibility and mobility. Articular cartilage is damaged and fibrous tissue invades
If left untreated, it can make extreme harm to the joints and serious complexities in the significant organs. In it, fibrous tissues ossify and bones fuse Rheumatoid joint inflammation is an immune system illness and osteoarthritis is brought about by impacts of maturing. The synovial membrane becomes inflamed and thickens, forming a mass.
The correct answer is - all of the above.
Answer:
d) do all jobs for survival
Explanation:
A single cell perform all its activity on its own.
