Answer:
Bacteria
Virus
Parasite
Fungi
Explanation:
A Bacteria is a single-celled biotic pathogen that is infectious. Bacteria are prokaryotes(single celled) and also form part of the disease causing organisms .
A Virus is an abiotic pathogen that is infectious.
A Parasite is a biotic pathogen that lives off its host. It sometimes uses structures such as hooks to obtain nutrient material from its host.
A Fungi is a biotic multi-celled pathogen that causes infections like ringworm.
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Cell walls are supporting structures that help the plant to have a fixed shape and protect it from injury,animal cells do not need to keep the structures because they have the skeletal system to protect the organs and cushion them against any external injuries.
The answer to this question would be: <span>B. Polyculture
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Polyculture is the practice to plant two or more different kind of crop in the field at same time. This method is better than monoculture that only plants one kind of crop. Polyculture needs more labor but it can increase the yield of the field and reduce the incidence of disease.
The answer is C-- because it came from something living.
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