There are different kinds of pathogens. The representation of the symbol that stands for the pathogen are;
- The helper T-cell is represented like a Circle with the Th wrote inside.
- The surface protein on the Th cell is the symbol that looks like this ⊥
or T Th cells.
Pathogens are known to be microorganisms that do invade the bloodstream. It can be easily see among the white cells.
Helper T-cell is known to consist of T-Lymphocytes which monitors the regulation of the immune system. T-cells are regarded as the helper cells that monitors the initial response in front of the pathogen. They includes; TH1, TH2, and TH17.
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Answer:
32 years earlier
Explanation:
Britain abolished slavery in 1833 while the US abolished slavery in 1865
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Answer:
2023
Explanation:
From 2010 to 2018, the expected value becomes lower. From 2018 to 2023, it lowers further. Then, from 2023 to 2028, the value increases. From that, the lowest point should be 2023.
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Answer:
The main idea behind MADs is that they use the principle that metallic objects (submarines) interfere in the magnetic lines of Earth forces. And this equipment detects this anomaly. Submarines, among many metallic things, can be detected by using MADs.
The history of MAD development
MADs are Magnetic Anomaly Detectors. Their function is to detect anomalies in the Earth’s magnetic field caused by submarines.
Submarines are made of ferrous metal which contains domains that are tiny magnets formed of iron molecules. This material creates a disturbance that can be detected in the magnetic field.
In 1917 the interest in the detection of submarines started with the study of hydrophones. Then in 1918, the U.S. considered using magnetism in this area but it did not result to be practical as it had a limited detection range. Then by 1941, Britain and the U.S. developed magnetic detection devices to measure Earth’s magnetic field, so after that in 1943, MADs were installed in ASW aircrafts. Due to the limited range and its lack of ability to detect the magnetic variance from different sources, MAD started to be used in combination with sonobuoys (a portmanteau of sonar and buoy). This combination allowed an aircraft to detect submarines with the confirmation of sonobuoys. To reduce the interference from electrical equipment or metal in the aircraft, the MAD sensor is placed at the end of an aerodynamic device. Even so, a submarine must be very near the aircraft's position and close to the sea surface for detection of the anomaly, because magnetic fields decrease over distance.
Besides the use of finding submarines, MADs are used by geologists and geophysicists for determining the distribution and concentration of magnetic minerals and mineral deposits.
Explanation:
