Answer:
In the early 1950s, two prominent medical researchers each found a way to protect the world from poliomyelitis, the paralysis-causing disease commonly known as polio. The vaccines created by Dr. Jonas Salk and Dr. Albert Sabin resulted in the near-global eradication of polio
Explanation:
well, since you are quite scared of being judged, you doing this shows that you are an open person who is ready to conquer your fears. You seem very introverted and awkward on the outside but on the inside you just want friends and have a big heart.
I hope this helps and by no means was I trying to offend you.
Answer:
750 to 1,250 cubic centimeters.
Explanation:
<em>Homo erectus </em>is also known as the upright man. There species were present in the Pleistocene era. Their first fossil was dated back at 1.8 million years ago.
The brain capacity of<em> Homo erectus </em>was found to be between the 750 and less than 1,250 cubic centimeters. Their species had been derived into<em> Homo heidelbergensis.</em>
Thus, the correct answer is option (D).
Answer:
The correct answer is D.
Explanation:
Bordetella pertussis is a gram-negative coccobacillus that causes a disease called whooping cough.
The bacterium infests the patients by colonizing lung epithelial cells. To do so, it requires adhesins, called filamentous haemagglutinin, fimbriae and pertactin. Once the bacterium is attached to the lung epithelial cells, it produces a cytotoxin that prevents their cilia from moving.
Another virulent factor from B. pertussis is the pertussis toxin, which alters host immune system through the inhibition of phagocytes response to it.
