It depends on how old you are.
Explanation:
1. any substance that kills germs
ans. germicide
2. drugs that attack specific bacteria
ans. antibiotics
3. substance that attacks fungi
ans. antifungal agents
4. chemical that destroyed pathogens inside the body
ans. anti-infective
Answer:
The given statement is true.
Explanation:
Alpha- defensins belong to the family of mammalian defensin peptides that belong to the alpha sub family. Defensins are anti-microbial molecules . They work against Gram positive and Gram negative bacteria, fungi and enveloped viruses. Alpha- defensins functions by attacking the intraluminal bacteria and fungal pathogens.
Reactive oxygen species are very reactive chemicals formed from oxygen. These are anti-microbial molecules. Reactive oxygen species are antimicrobial against Gram-positive and Gram -negative bacteria, viruses and fungi.
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B) Around 300 million years ago, the regions where coal formed were located in tropical climates that were partially submerged on the coasts
Explanation:
The distribution of the world's major coal reserves supports the the theory of plate tectonics because the regions where they formed were in tropical climates around 300 million years ago.
Coal is a fossil fuel used to produce energy when burnt.
They are formed in tropical swamps where there is luxuriant plants life.
To form a coal, a terrain such as swamp must have rich plant life. The plant is rapidly buried and cut off from the oxic environment. Further burial under heat and pressure transforms the plant matter into coal.
- The major reserves of coal in the world today is found in Europe and North America
- These are temperate regions whose conditions do not favor the formation of coal.
- Those regions must have moved from around the equator to their present day position.
- The coal formed when they were much closer to the equator around 300 million years ago.
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Proteins that tag pathogens for destruction by immune cells are called Antigens.
