When a person is startled by a nearby car horn, the sympathetic nervous system will increase its activity. This part of the nervous system will activate the person's fight-or-flight response. It will help the person decide whether to fight aggressively or to flee quickly. In this case, it will tell the person to quickly move away from the car.
Yeah i can’t see the 2 scenarios too
RNA interference is a biological process in which RNA inhibit gene expression by neutralizing targeted mRNA molecules. RNA interference is usually brought about by two different small RNA; they are microRNA and small interfering RNA.
Answer:
Prions are abnormally shaped proteins that cause spongiform encephalopathies. (Ans C)
Explanation:
Prions : Prions are proteinaceous infectious particle or misfolded proteins with the ability to transmit their misfolded shape into normal shape protein. They are also responsible for some neurodegenerative diseases in mammals. They can affect both animals as well as humans.
Prion disease occurs when normal prion protein (present on the surface of many cells) becomes clump (abnormal) in the brain. This accumulation of abnormal protein in the brain can cause disease.
Spongiform encephalopathies also called prion disease. Spongiform encephalopathies affect the nervous system and brain of animals & humans. It is caused by a degeneration of brain tissues giving it a spongy appearance.
The feature of endocrine system that makes it distinctly different from the nervous system is that it uses hormones distributed through the bloodstream, option(A).
<h3>Why is endocrine system distinctly different from nervous system?</h3>
- The biggest difference between these two is that the endocrine system uses hormones produced by glands into the bloodstream, whereas the nervous system uses electrical impulses to send signals through neurons.
- The signal transmission of the nervous system is fast because neurons are interconnected, but the functions are short-lived when compared to endocrine system.
Therefore, option(A) is the correct answer.
To know about differences between the two systems, refer:
brainly.com/question/26146622
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