The original source of phosphorus in a terrestrial ecosystem is soil microorganisms. soil becomes deficient in phosphorous leading to ecosystem retrogression. phosphorous can be found in our body, it builds strong bones and teeth.
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Yes all animals humans and bugs have hearts
The genetic recombination of human influenza A caused massive, widespread epidemics that affected the global human population several times in the twentieth century.
<h3>What is influenza ?</h3>
Influenza is a disease caused by virus which is contagious.It is different from a normal cold as it shows severe symptoms than flu.
Influenza is caused by influenza virus and people get infected when they breathe in tiny airborne droplets from the cough or sneezes of infected person.
Outbreaks of influenza A virus occurred in twentieth century.During 1918 influenza pandemic was the most dangerous pandemic.
Therefore, the genetic recombination of human influenza A caused massive, widespread epidemics that affected the global human population several times in the twentieth century.
Learn more about influenza here:
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Answer: Epidermis
Explanation:
“ In plants, the epidermis is the tissue most like the integumentary system in animals.”
