66. Endosymbiosis theory is accurately described by which of the tollowng? a) it
ID: 213906 • Letter: 6
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66. Endosymbiosis theory is accurately described by which of the tollowng? a) it describes the way in which mitochondria and chioroplasts lest their ability to perform respiration and photosynthesis b) it describes the way in which eukaryotic cells acquired mitochondia the mutually beneficial relationship between humans and the microbes that reside in their inside them c) it describes digestive tracts d) it describes the way in which infected host cells dplay antigens identifying the pathogens 67 Why are the organisms commonily called "bluegreen age" not classified as true algae? a) They are multicellular b) They are not phototrophs c) They have chitin in their cell walls d) They are prokaryotic The phytoplankton consist of what 68 Phytoplankton conduct about hai" or a# photosmnetk actitv on Earth. two groups of microbes? a) Unicellular algae and plant ike protists b) Unicellular algae and cyanobacteria d) Cyanobacteria and hicobium species 69. Which phylum of bacteria are capable of forming endospores? a) Cyanobacteria b) Firmicutes c) Actinobacteria d) Proteobacteria e) Bacteroidetes 70. Some microbes do not normally cause disease, but can infect and cause disease in a host with a weakened immune system, such as a host suffering from an immunodeficiency. What is the term for this type of microbe? a) Obligate pathogen b) Primary pathogen c) Opportunistic pathogen d) Transformative pathogen 71. The phagocytes of the innate immune system are the only immune cells that directly kill foreign microbes Which of the following are types of phagocytes? a) Neutrophils b) Macrophages c) Cytotoxic T-cells d) A andB e) A,B,and C 72. Fungi are capable of multiple types of reproduction. Which form of reproduction would you expect to observe from a fungus undergoing environmental stress, such as a nutrient shortage or harsh conditions? a) Fragmentation b) Budding c) Asexual spore formation d) Sexual spore formation e) Binary fission Page 11Explanation / Answer
66. Answer is B. it describes the way eukaryotes acquired mitochondria and chloroplast.
Endosymbiosis is the only theory that explains the evolution of eukaryotes from prokaryotes by engulfing another prokaryotes that become mitochondia and chloroplast.
67. Answer D. they are prokaryotic
Blue green algae are group of photosynthetic bacteria that term as Cyanobacteria. But algae are eukaryotes.
68. Answer B. Unicellular algae and cyanobacteria.
69 answer B, Firmicute phylum
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