The answer for your question is c
Two statements support the claim that Jenner has been given credit for starting and spreading the practice of immunization:
- Jenner became interested in the protective effects of cowpox during his apprenticeship. Here, we are told that Edward Jenner started working on ways to defend the body against diseases as early as during his apprenticeship when he was a teenager. He had been told that farm workers who had contracted cowpox were immune to the smallpox epidemic which was spreading across Europe at the time. He then started working on a vaccine containing cowpox.
- Jenner made the first step to erase smallpox. This first step was to try his new smallpox vaccine on a child in 1796. The child did not catch smallpox. In order to get recognition and validation from the authorities, Jenner administered his vaccine to 22 more people, with success.
A psychical geographer would not study political system -rather the human geographer would study political systems.
A human geographer would study human cultures and relations - and among the options only one refers to human activities, namely:
b. the housing styles of the Baka people of the Congo
Answer:
The general pattern in changes in the layers of soil with depth is called <u>Soil Horizon</u>
Explanation:
The layer of soil present parallel to the surface, having different chemical physical and biological properties from the layers that are present above and below it, is known as the soil horizon.
The difference in the properties of the layers of soil can be the texture of the soil, color of the soil, particle size of the soil etc.
~Hello there!
Your question: Which of the following could possibly increase genetic variation indirectly?
Your answer: The following could possibly increase the genetic variation indirectly:
- Increase food supply
-Toxin
- New habitat.
Hope this helps~
