4,1,2,6,3,5 that should be right
Answer: Middle Ear
Explanation:
Ear is one of the most important part of human body by which an individual is able to hear sounds. It also helps in maintaining pressure inside body.
The Eustachian tube found inside the ear is a canal which is connects middle ear to the nasopharynx. This area consists of back of nasal cavity and the upper throat.
Its main function is to control the pressure within the middle ear, making it equal to the pressure outside the body.
Hence, the correct answer is option A
Answer:
A new species can form when a group of individuals remains completely separated from the rest of its family long enough to evolve different traits that prevent reproduction. A natural catastrophe such as a river or volcano, may separate group members.
Answer:
Clostridium difficileis produces spores and toxins.
Explanation:
C. difficileis bacteria are found in the environment, soil, water, air, processed meats, human and animal feces.
Spores are transmitted through feces and spread to food, surfaces, and objects when infected people do not wash their hands well.
Once established, the bacteria can produce toxins that attack the lining of the intestine, the toxins destroy cells, produce plaques of inflammatory cells and decaying cell particles within the colon, causing watering diarrhea.
I hope it helps!
Answer:
A metabolic pathway is a series of chemical reactions in a cell that build and breakdown molecules for cellular processes
