1. What is the organic farming?
2. Would you sow the seeds which float on water? If yes/no, Why?
3. Differentiate between infectious and non-infectious diseases with examples. 4. Define vaccine. Who invented the first vaccine?
5. What are microbes? Write some general features of microbes.
Answers
Answer:
1) Organic farming is an agricultural system which originated early in the 20th century in reaction to rapidly changing farming practices. Certified organic agriculture accounts for 70 million hectares globally, with over half of that total in Australia
2) No, Farmers before sowing the seeds first check the quality by soaking than in water. If it floats then the seed is not good as it is hollow from inside. Sinki g seeds are good seeds
3) Infectious diseases are transmitted from person-to-person through the transfer of a pathogen such as bacteria, viruses, fungi or parasites. A non-infectious disease cannot be transmitted through a pathogen and is caused by a variety of other circumstantial factors.24-Jun-2020
4) It was also the first disease for which a vaccine was produced. Although at least six people had used the same principles years earlier, the smallpox vaccine was invented in 1796 by English physician Edward Jenner
5) Microorganisms or microbes are microscopic organisms that exist as unicellular, multicellular, or cell clusters. Microorganims are widespread in nature and are beneficial to life, but some can cause serious harm. They can be divided into six major types: bacteria, archaea, fungi, protozoa, algae, and viruses.
1. organic farming is basically farming without hyv seeds or chemical fertilizers
2. no, the seeds that float on water are basically seeds that are not good in strength
3. infectious diseases are diseases that are formed from living organisms. eg: tuberculosis, hepatitis, coronavirus etc. non infectious diseases are diseases that are not formed from pathogens instead they are formed by genetics and malnutrition. eg: cancer, epilepsy etc.
4. vaccines are basically injections containing immunity power that helps our body fight a pathogenic organism. Edward Jenner invented the first vaccine.
I don't know the 5th one hope this answer helps you