What destroy billions of dollars of food crops worldwide annually

Fungal Parasites, specifically basidiomycetes causes various infectious diseases that destroys billions of dollars of food crops annually with worldwide impact. The 1972 U.S. corn crop was almost completely destroyed by a fungus and during the late 1990s most wheat fields in Arizona had to be devastated due to the existence of fungal parasites. This clearly suggest that the presence of fungal parasites resulted in loss or reduction of food crops.

Furthermore, basidiomycetes are called club fungi, which is part of a major group of fungi that produce a basidium structure that includes mushrooms and toadstools. Although, they have economic use in pharmaceutical industry such as producing penicillin and provide us food like cheese, mushroom, in baking and in brewing, there negative impact must also be consider and should be handle appropriately to eradicate crop destruction.

Improper storage, fungal and bacterial affected poor quality of food.

Explanation:

Millions and billions of food is destroyed every year by the effect of microbes and bacteria. Some of them are not handled properly and gets destroyed due to improper handling.

Food and crops are also destroyed are also if they are not grown properly. Then also it is a waste.

This is how billions of dollars of food crops are wasted annually.

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answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]