The Variola vaccine (which was also the first vaccine made in the world) came from studies carried out by the English physician Edward Jenner. He observed people who became infected by milking cows with a disease of cattle and came to the conclusion that these people were immune to smallpox. The disease, called cowpox, resembled human smallpox by the formation of pustules (lesions with pus).
In view of this observation, in 1796, Jenner inoculated the pus present in a lesion of a milker named Sarah Nelmes, who had the disease (cowpox), in an eight-year-old boy named James Phipps. Phipps acquired the infection mildly and, after ten days, was cured. Later, Jenner inoculated Phipps pus from a person with chickenpox, and the boy suffered nothing. There, the smallpox vaccine was born.
The doctor continued his experiment, repeating the process in more people. In 1798, he reported his discovery in a paper entitled "An Survey on the Causes and Effects of Smallpox Vaccine". Despite facing resistance, in a short time, his discovery was recognized and spread throughout the world. In 1799, the first vaccine institute was created in London and, in 1800, the British Navy began to adopt vaccination.
Answer:
the person above is right!
Explanation:
B. It falls back to earth
C. It disappears
Answer: Most likely to narrow down soil sample matches:Soil color
Explanation:
Investigating soil characteristics like water content, age, and mineral composition, can be very important in the figuring out soil sample matches. Along with soil processes, which include carbonate makeup, chemical changes and changed organic matter; these factors can all be determined by looking at soil's most obvious physical property, color.
For instance, red or yellow soil shows the presence of iron oxides and dark colored soil is likely to contain higher amounts of organic matter (decayed vegetation and animal remains). Thus, soil from closely related sites should show matching characteristics, and color analysis allows for the full analysis of soil sample matches of the same profile.
Answer:
Presence of rare minerals or artificial debris
Explanation:
In the lesson it clearly states, "Rare minerals and rocks or artificial debris can narrow down possible soil matches." This is also in the science journal.
I have compared a cell to an amusement park for the assignment what part of an amusement park is similar to a mitochondria (breaks down food to make energy for cell)
Answer:
The plasma membrane is like a gate and is a phospholid bilayer that surrounds the cell. The gate is much like the plasma membrane in that it selects who can enter an amusement park with a ticket. This is like the entrance to a park. The nucleus is like the information booth that contains all of the blueprints for making necessary points. At an amusement park, the information booth, much like the nucleus of a cell, provides all information and maps for where to go and what to find. The lysosome is like a recycling bin that digests excess or worn out organelles in cells. They contain digestive enzymes. In an amusement park, without trash cans, excess food and waste would have no where to be thrown away. By recycling waste, it is put through a process much like the digestive enzymes. The ribosomes are like food stands, that make proteins according to the instructions given by the DNA. Food stands in an amusement park provide nutrients and refreshments for the guests. This is much like the process of ribosomes. The rough endoplasmic reticulum are like buses. It is a series of high folded membranes that provide transport system between the nucleus and cytoplasm. In an amusement park, transportation is needed to provide guests with fast access to areas of the park. Buses provide the quickest transportation for guests.
sorry if i did not do all the parts but hope this helps
In comparing a cell to an amusement park, a mitochondria could be likened to the power generator. This is because both provide necessary energy to keep functions running efficiently.
When comparing a cell to an amusement park, the part of the amusement park that represents a mitochondria could be likened to the power generator or power station. The power generator in an amusement park ensures all rides and facilities get the energy they need to function, much like how the mitochondria breaks down food to produce energy for the cell. It is a crucial part of both entities, providing the necessary energy to keep operations running smoothly.
#SPJ2
Answer:
Model
Explanation:
Answer:
ocelots are known to really enjoy small rodents, like mice, but they also eat a variety of other things including birds, snakes, iguanas, different types of lizards, lil baby peccaries :(, young deer, bunnies (why-), and even seafood, like fish and crabs.
~hope i helped ouo have a nice rest of ur day~
lots of love,
lee