Answer: There are genes that code for different cell receptors that detect foreign substances. And for the immune system to fight these superbugs, the genes encoding these receptors must mutate and evolve. Humans have a slow rate of evolution, slower than bacterial evolution. Then not only human genes mutate at a very slow rate, but insect genes mutate very fast and can improve their strategy to evade the immune system.
Explanation:
A mutation is a random change in the nucleotide sequence or in a gene, which produces a variation in its characteristics and which is not necessarily transmitted to the offspring. They occur spontaneously by the action of mutagens, which are physical, chemical or biological agent that changes the genetic information of an organism and thereby increases the frequency of mutations above the natural level. In multicellular organisms, mutations can only be inherited when they affect the reproductive cells, called gametes (egg and sperm) A consequence of mutations can be, for example, a genetic disease, or it can also be a favorable improvement such as being able to fight against a virus. However, even if in the short term mutations could detrimental, they are essential for our long-term existence becuase without mutations there would be no change, and without change life could not evolve.
<u>The immune system is the body's natural defense against infections, such as bacteria and viruses. The body attacks and destroys invading infectious organisms by the coordinated action of cells and proteins</u>. Any substance or compound produced by an organism is a potential antigen when it is recognized as foreign by the immune system of another organism, whether it is of the same or a different species. In addition, the genes code for different cell receptors that detect these foreign substances. And for the immune system to fight these superbugs, the genes encoding these receptors must mutate and evolve. <u>But, humans have a slow rate of evolution, slower than bacterial evolution. Then not only human genes mutate at a very slow rate, but insect genes mutate very fast and can improve their strategy to evade the immune system</u>. Therefore, the human population may not have mutations that improve the immune system to help it fight againts these superbugs.
The correct answer is nares.
The Nares give an opening for air to enter the nasal cavity. The nares give openings to the outside world.
- The air is inhaled from the nostrils. The air becomes warm as it moves further into the nasal cavities.
- The scroll-shaped bones, the nasal conchae, protrude and form spaces by which the air passes.
- The openings from the nasal cavity into the pharynx are known as the internal nares.
- The nose hairs present at the entrance are there to the nose trap large inhaled particles.
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Answer:
Explanation:
Everyday Examples of Heat or Thermal Conduction
As the pad heats up, it transfers heat to the part of your body that it is in contact with. The heat from a hot liquid makes the cup itself hot. If you grab a cup that has hot coffee, tea or broth in it, the cup itself will be hot and your hands will feel it.
Answer:
If the evolution of a species occurs at a more rapid rate, then such a species is able to quickly adapt to its host habitat/ecosystem. One benefit for the species would be escaping extinction and becoming the dominant species in its habitat/ecosystem.
Answer:
A phosphatase
Explanation:
A phosphatase is an enzyme that removes a phosphate group from a protein. Together, these two families of enzymes act to modulate the activities of the proteins in a cell, often in response to external stimuli.