Answer:
The vaccination word is derived from the Latin word cowpox which is Vaccinia.
Explanation:
In 1796 Edward Jenner found a new technique for protecting people from smallpox by introducing a dead form of the virus or infectious disease in the body to develop or acquire immunity for the de=isease.
It is found by Edward Jenner who use this in cows for cowpox and called or named after cowpox which is called Vaccinia in Latin and cows known as Vax.
The movement of the arms and legs is accomplished by the SOMATIC subdivision of the peripheral nervous system.
The peripheral nervous system is divided into two, they are autonomic nervous system and the somatic nervous system. The somatic nervous system controls the movement of arm and legs.<span />
Cells with a relatively simple cell morphology that do not have a true membrane-delimited nucleus are called Prokaryotes.
What are Prokaryotes?
Any organism without internal membranes is referred to as a prokaryote, usually written procaryote. These organisms lack a defined nucleus and other organelles. One of the most well-known prokaryotic species is bacteria. Prokaryotes differ from eukaryotes by not having internal membranes. The principal osmotic barrier of prokaryotic cells is the membrane, which is composed of phospholipids. Ribosomes, which are responsible for protein synthesis, and a double-stranded circular DNA chromosome are both found in the cytoplasm. The circular DNA units known as plasmids, which are found in many prokaryotes, have extra disposable cell activities such encoding proteins that render antibiotics inactive. Prokaryotes with flagella exist. The flagella present on some eukaryotes differ from prokaryotic flagella in terms of appearance and motion.
The cell wall and cytoskeletal components work together to preserve the morphology in the majority of prokaryotic cells. The majority of prokaryotes and certain eukaryotes have a structure called the cell wall that surrounds the cell membrane and shields it from osmotic pressure changes.
Bacteria are prokaryotic cells, i.e., they do not have a membrane-delimited nucleus. Eukaryotes have cells with a delimited nucleus.
Thus these types of cells are called prokaryotes.
To learn more about Prokaryotes click on the link below :
brainly.com/question/1288013
#SPJ4
Answer:
A. Hydrogen Bonds
Explanation:
The answer here is hydrogen bonds. This is because the hydrogen bonds cause molecules to push farther apart, which lowers the density.
Hope this helped! :^)
Answer:
a. It has a negative value.
b. It is measured in millivolts.
c. It is measured in millivolts.
Explanation:
Resting membrane potential is typically ~ -70 millivolts so options a, b and c are correct, rest are false statements.
The resting membrane potential is -70 millivolts because more K+ is inside the neuron while more Na+ is outside the neuron and it reflects more negative voltage in the cytosol as compared to the interstitial fluid.
As soon as stimulus arrives, it causes more Na+ to move inside the neuron making the membrane potential as +20 millivolts and the neuron is said to be in 'depolarized state'. Soon after that K+ starts to move outside of the neuron and since K+ has positive charge and it is moving out of the cell so the membrane becomes more and more negative inside and at this time neuron is said to be in 'hyperpolarised state'.