Guillain-Barré syndrome involves varying degrees of demyelination of the peripheral nervous system leading to muscle weakness of extremities and possible paralysis.
Answer the following statement true (T) or false (F)
True
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Obligate symbiotic fungi that form associations with plants by entering the cortical cells of plants without invading the plant cell's membrane are called ________ and include the genus ________
A) ectomycorrhizae / Agaricus B) ectomycorrhizae / Glomus C) endomycorrhizae / Agaricus D) endomycorrhizae / Glomus
Which one of the following terms applies to the phylum Nematoda?
A. Parazoa B. diploblastic C. deuterostome D. pseudocoelomate
There is a __________ flow of energy into and out of an ecosystem, and a cycling of materials among
resident species. Fill in the blank(s) with the appropriate word(s).
Which populations are at greatest risk for extinction?
A) very small ones B) very large ones C) ones with specific niches D) ones with extensive habitat ranges