Answer:
<h2>measures the pressure of blood when the heart contracts and relaxes.. </h2>
Answer:Toothed whales do not make the long, low-frequency sounds known as the whale song. Instead they produce rapid bursts of high-frequency clicks and whistles. Single clicks are generally used for echolocation whereas collections of clicks and whistles are used for communication.
1. SI,
2. Number 10.
I'm pretty sure it's that, I just did something related to that.
Answer:
This question lacks options, options are:
A.They maintain the cell’s shape.
B.They regulate cell processes.
C.They protect the body from infectious agents.
D.They signal the immune system to destroy pathogens.
E.They speed up biochemical reactions.
F.They send electrical signals.
The correct answers are C and D.
Explanation:
B cells and T cells use different biological weapons to attack the pathogen. The first secrete proteins called antibodies, which are distributed via the blood or the exposed surfaces to the environment, such as mucous. Antibodies are glycoproteins that circulate in the bloodstream looking for antigens that cause some type of damage to the body. Antibodies recognize and neutralize pathogens in a highly efficient way. Once the antibodies are produced, they remain circulating in the bloodstream for several months, which generates immunity for a long period of time to a certain antigen, in other words, they are capable of recognizing other molecules (antigens) in a very specific way and forming stable complexes with them (immune complexes). Its appearance in plasma is part of the adaptive immune response, in what is known as a specific humoral response, constituting a very effective defense against pathogens.
Rodolf Virchow was the scientist that studied how wounds heal and proposed that cells come from preexisting cells. Rodolf Virchow was born on 13th of October in the year 1821 and died on 5th of September in the year 1902.He was a German doctor, pathologist, anthropologist, writer, editor and politician. he was a multi faceted person. He became famous because of his discoveries regarding public health. He is also regarded as the Father of modern pathology. He was German by birth. Although he failed in containing the typhus epidemic that occurred in Upper Silesia but his report was valuable in laying the foundation for public health in Germany.
