47) Which of these groups consists of parasitic flagellated cells, such as Trypo
ID: 182552 • Letter: 4
Question
47) Which of these groups consists of parasitic flagellated cells, such as Tryponos that causes sleeping sickness? A) metazoans B) kinetoplastids. C) diatoms D) browm algae E) ciliates 48) What is the primary role of a mushroom's underground mycelium? A) absorbing nutrients B) anchoring C) protection. D) sexual reproduction E) asexual reproduction. 49) The following conditions are all caused by fungus excepr A) AIDS. B) athelet's foot C) ringworm. D) candidiasis (Candida yeast infection.) E) coccidioidomycosis So) The closest relatives of fungi are probably A) animals B) vascular plants c) mosses D) brown algae. slime molds.Explanation / Answer
47:(B) kinetoplasmids
Kinetoplastids are free-living or parasitic.The order trypanosomatida is notable as it includes many genera which are exclusively parasitic.Trypanosomatids may have simple life cycles in a single host or more complex ones which progress through multiple differentiation stages in two host.Diseases caused by members of the order trypanosomatida include sleeping sickness and Chagas disease.
48:(A) absorbing nutrients
The mycelium is a fungus that absorbs nutrients from its environment and it does this in a two-stage process. Mycelium is an important food source for many soil invertebrates.First the hyphae secrete enzymes onto the food source, which breaks down polymers into monomers. These monomers are then absorbed into the mycelium by facilitated diffusion and active transport.
49:(A) AIDS
The AIDS is the acquired immuno deficeincy syndrome which is a disease that is caused by the HIV virus.The virus can be transmitted through contact with infected blood, semen or vaginal fluids.The virus damages the immune system and this makes it harder and harder for the body to fight off infections and some other diseases.
50:(A) animals
The animals are closest to the fungi because the fungi are closer genetically to animals than to plants and researchers who have compared sequences of ribosomal RNA prove this statement.Fungi and animals are more closely related to one another than either group is to plants. This has been determined through molecular phylogenetic analyses.
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