Quiz_Plantae

Explanation:Late blight of potato is caused by the oomycete Phytophthora infestans. This pathogen is notorious for causing the Irish potato famine and continues to be a significant threat to potato crops worldwide.

Explanation:Woese classified fungi in the domain Eukarya, which includes organisms with complex, membrane-bound cells. Fungi are distinct from bacteria and archaea, which are prokaryotes.

Explanation:Spermatophytes, or seed plants, produce seeds as a means of reproduction. This group includes both gymnosperms and angiosperms, unlike bryophytes, pteridophytes, and fungi.

Explanation:Heat, gas, or chemical treatments are effective methods to sterilize propagating materials and keep them free from pathogens, ensuring healthy plant growth.

Explanation:Early blight of potato is caused by the fungus Alternaria solani, which leads to dark, concentric spots on leaves, stems, and tubers.

Explanation:Club mosses are pteridophytes, while peat mosses are bryophytes. Both groups are non-seed-bearing plants but belong to different classifications within cryptogams.

Explanation:Cercospora arachidicola is the pathogen responsible for leaf spot disease in groundnut. This disease is characterized by circular lesions on the leaves, which can lead to significant yield loss if not controlled.

Explanation:Cycas, a gymnosperm, does not have an ovary. In gymnosperms, seeds are not enclosed within an ovary, unlike in angiosperms where the ovary encloses the seeds.

Explanation:Crossing cultivated plants with wild varieties can introduce genes that confer resistance to diseases, thereby producing disease-resistant plant varieties.

Explanation:Euglena exhibits characteristics of both plants and animals. It has chloroplasts for photosynthesis like plants but can also move and consume food like animals.