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
larisa [96]
3 years ago
13

When Jenner developed the first vaccine he was using the observation of milk maids who]

Biology
2 answers:
Darina [25.2K]3 years ago
7 0

Answer:

Who became immune to smallpox after getting infested by cowpox.

Explanation:

A successful vaccine for smallpox was developed by Edward Jenner in 1796. He used the observation of milkmaids who became immune to smallpox after getting infected by the cowpox virus. It is due to the fact that the virus, which leads to cowpox infection is identical to the smallpox virus. When the milkmaids got infected by the cowpox virus, their immune cells generated antibodies, which can also destruct virus for smallpox, and therefore, they were not affected by the smallpox virus.

I am Lyosha [343]3 years ago
3 0
On May 14, 1796, Jenner<span> took fluid from a cowpox blister and scratched it into the skin of James Phipps, an eight-year-old boy. A single blister rose up on the spot, but James soon recovered. On July 1, </span>Jenner<span> inoculated the boy again, this time with smallpox matter, and no disease developed. The </span>vaccine<span> was a success.</span>
You might be interested in
White blood cells are a part of the body’s defense against infections. Based on the importance of these blood cells, which two s
nikdorinn [45]

Explanation:

Immune system and circulatory system

4 0
2 years ago
Why is it important to understand <br> (&amp;) study the way bacteria growth (&amp;) spread ?
Mekhanik [1.2K]

Answer:

can you help me

please then i will helpnyou

6 0
2 years ago
Cell Transport and Homeostasis essay
sergiy2304 [10]

Answer:

cell transport or membrane transport helps in the transport of solute molecules and ion across the plasma membrane and helps in maintaining homeostasis of these molecules in the biological system.

Explanation:

Homeostasis is very very important to maintain a steady body physiology and the maintenance of steady body physiology is highly significant because any type of disturbance in the homeostasis can leads various physiological abnormalities.

         Various membrane transport process such as osmosis helps in the movement of water from high concentration region to the region of low water concentration until equilibrium is reached.Thus osmosis helps to maintain water homeostasis in our body.

    By the same way glucose transporter maintain the homeostasis of glucose inside our body.

3 0
2 years ago
Prophase description
Gnoma [55]

Answer:

Early prophase: the DNA and centrioles duplicate and the centioles move and form the mitotic spindle. Middle prophase: microtubles from the spindle attach to the chromosomes. Late prophase: the chromosomes move to the equatorial plane.

Explanation:

5 0
2 years ago
Tara has two dogs. They win many of the agility competitions they enter. These competitions test a dog's ability to
ololo11 [35]

Answer:

O With training, the puppies are likely to excel at agility competitions.

O Without training, the puppies are no more likely to succeed at agility competitions than any other dog.

Explanation:

This two options speaks the same thing and are the correct option.

The phenotype of an organism is a product of genotype and environment

P=G+E

The litters can inherit the trait of running, having a good vigour and ability to win agility competition but when the environment do not allow this trait to be expressed the trait can be masked i. e may not find expression.

The environment ensure that this litters are been taught the rudiment of agility competition to ensure they win if they are not been taught, they many not know they have the ability to win and will not be different from other dogs.

The training is what brings out the potential in them that can later be seen and expressed in the competition.

3 0
3 years ago
Read 2 more answers
Other questions:
  • The maxilla also frequently sustains fractures from blunt trauma to the face. which structures support and house the upper teeth
    6·1 answer
  • Our evidence indicates that T. rex shares more features with_________ than with the other groups of animals.
    9·1 answer
  • What’s the original cell in meiosis
    8·2 answers
  • Bryophytes exhibit sexual reproduction by producing male and female gametes which structure in bryophytes produces the male game
    8·1 answer
  • Describe how this level of organization fits into the organization of the whole body.
    13·1 answer
  • How does facilitated diffusion differ from simple diffusion
    6·1 answer
  • During electrophoresis, DNA fragments move toward the anode. What does this
    6·1 answer
  • How can a change in the density of a gas affect the temperature of a gas?
    5·2 answers
  • Identify the structure of the human heart that rises from the pulmonary trunk, bends to the right behind the aorta, and divides
    12·1 answer
  • Two dogs–a boxer and a poodle–were the first to have their entire genomes sequenced. The dog genome contains 2.8 billion2.8 bill
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!