1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
victus00 [196]
3 years ago
10

Edward Jenner discovered vaccinations. He found that some of the dairymaids who worked with cows had suffered lesions on their h

ands, and that these dairymaids were immune to the more severe smallpox. Which best explains why the dairymaids were immune to smallpox?
They did not interact with many people so they were not exposed to the pathogen.
They frequently washed their hands so they were able to wash away the pathogen.
They were exposed to cowpox, and the substance their body produced to fight cowpox also attacked smallpox.
They breathed the air around the cows that carried an antipathogen in it that destroyed the pathogen.
Biology
2 answers:
Nadusha1986 [10]3 years ago
7 0

Answer:

They were exposed to cowpox, and the substance their body produced to fight cowpox also attacked smallpox.

Explanation:

lbvjy [14]3 years ago
4 0

Answer:

The dairymaids possessed immunity against the more extreme smallpox as due to getting exposed to cowpox, the body of the dairymaids generated certain kinds of substance to defend against the cowpox, which also helped in defending smallpox.  

When Edward Jenner found that the dairymaids suffering from cowpox possessed immunity towards smallpox, he concluded that the emergence of cowpox at the same time developed immunity towards smallpox. To ensure, Jenner collected a fluid sample from the pustule of cowpox and administered it within a boy's body, and thus, discovered the principle of immunity.  

You might be interested in
How do some bacteria survive in unfavorable conditions?
lozanna [386]

Answer:

The answer to this question is D. They multiply rapidly to increase their population. I sure do hope this helped dear! XD

Explanation:

5 0
3 years ago
Photosynthesis occurs in both prokaryotes and eukaryotes. How do the locations where photosynthesis occurs differ in prokaryotes
mamaluj [8]

Answer/Explanation:

In eukaryotes, photosynthesis occurs mainly in green plants. These organisms have specialized organelles called chloroplasts that carry out photosynthesis. These contain photoreceptors that absorb photons from the sun through a pigment called chlorophyll, providing the energy to synthesise glucose from carbon dioxide and water.

In contrast, prokaryotes that carry out photosynthesis are able to do so because they have folds in the plasma membrane that permit the attachment of chlorophyll. They do not have specialized membrane-bound organelles like eukaryotes.

5 0
3 years ago
Liquid media is_______
Contact [7]

Answer:

Liquid media are a type of culture media used to cultivate and maintain microorganisms. They are also referred to as culture broths. Liquid media are not supplemented with a solidifying agent. Hence, these media remain as liquids even at room temperature.

Explanation:

4 0
3 years ago
An ion can be removed from an aqueous solution by 1. the formation of a gas that escapes. 2. formation of a precipitate. 3. the
Lena [83]
The correct option is ALL OF THESE.
Generally, three processes can lead to the removal of ions from solutions, these include;
1. The formation of an insoluble product, which is called precipitate.
2. The formation of either a non electrolyte or a weak electrolyte and 
3. The formation of a gas product, which escapes from the solution.
7 0
3 years ago
Which structure is responsible for controlling substances that enter and leave the cell?
maria [59]

Answer:

Cell Membrane

Explanation:

3 0
3 years ago
Other questions:
  • Two aligned sequences fo the same gene differ by four substitutions, all transitions, two more sequences for the same gene also
    12·1 answer
  • 18. What is Mohs hardness scale
    8·1 answer
  • Words with three letters in both syllables
    15·2 answers
  • Why is sample size important?
    5·1 answer
  • Complete the following sentences to describe the stages of the lytic cycle of viruses. Then, place the stages in chronological o
    12·1 answer
  • The major source of energy for all things comes from
    13·2 answers
  • When does dna synthesis occur in meiosis
    10·1 answer
  • The transfer of energy that occurs when a force is applied over a distance is what type of energy
    5·1 answer
  • The black dotsThe black dots represents the solute. Identify the type of solution below.
    5·1 answer
  • What every friend is cheater from last time i never get trusted friend
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!