Question: question 1 which characteristics of mitochondria and chloroplasts supports their...
Question 1 Which characteristic(s) of mitochondria and chloroplasts supports their existence as independent prokaryotic cells that were engulfed by eukaryotic cells?
Question 1 options: their size presence of their own DNA their self-replication by binary fission all of these characteristics support that mitochondria and chloroplasts were independent prokaryotic cells that were engulfed by eukaryotic cells
Question 2 Mitochondria originated from __________, which were engulfed during __________ endosymbiosis. Chloroplasts originated from __________, which were engulfed during __________ endosymbiosis.
Question 2 options: aerobic bacterium; primary; cyanobacteria; primary anaerobic bacterium; primary; cyanobacteria; secondary cyanobacteria; primary; aerobic bacterium; secondary cyanobacteria; primary; aerobic bacterium; primary
Question 3 Saved Secondary endosymbiosis refers to the process by which
Question 3 options: prokaryotes acquired chloroplasts. prokaryotes acquired mitochondria. eukaryotic cells engulfed cyanobacteria. eukaryotic cells with mitochondria engulfed a photosynthetic.
Question 4 Saved Though there are exceptions, __________ is a common reproductive strategy among protists.
Question 4 options: sexual reproduction by mitosis asexual reproduction by mitosis binary fission asexual reproduction by meiosis
Question 5 Protists with chloroplasts are __________ that make their own food. Protists that lack chloroplasts ___________ and are thus heterotrophic; this group is generally known as __________.
Question 5 options: parasites; ingest food; protozoans heterotrophs; photosynthesize; plankton photosynthetic autotrophs; ingest or absorb food; protozoans green algae; are parasites; plankton
Question 6 An endosymbiotic protist that does not cause disease is likely
Question 6 options: plankton. a protozoan. a parasitic heterotroph. a photosynthetic autotroph.
Question 7 The euglenoids are
Question 7 options: euglenoids can be all of these things. photosynthetic organisms with chloroplasts. heterotrophic organisms without chloroplasts. flagellated freshwater unicellular organisms.
Question 8 African sleeping sickness and Chagas disease are caused by
Question 8 options: amoeboids found in zooplankton. euglenoids with chloroplasts. photosynthetic protists. parasitic flagellates.
Question 9 Amoeboids feed by
Question 9 options: photosynthesis, by which they make their own food in their chloroplasts. phagocytosis, which occurs as pseudopods surround and engulf prey. decomposing dead organisms. absorbing nutrients from their surroundings.
Question 10 Foraminiferans and radiolarians
Question 10 options: share a clade with the amoeboids. are amoeboids with shells called tests. have pseudopods, but are not amoeboids. do not have pseudopods, though they do have shells, called tests.
Question 11 A ciliate might have __________, which discharge structures that are useful in defense or prey capture.
Question 11 options: anal pores trypanosomes contractile vacuoles trichocysts
Question 12 Ciliates reproduce __________ and have __________ to control metabolism and reproduction.
Question 12 options: both sexually and asexually; two types of nuclei sexually; a single nucleus asexually; two types of nuclei by binary fission; a nucleoid
Question 13 The nonmotile apicomplexan Plasmodium vivax causes
Question 13 options: Chagas disease. vaginitis. African sleeping sickness. malaria.
Question 14 Which phase of Plasmodium vivax’s life cycle takes place in the human liver? In the mosquito carrier?
Question 14 options: the sexual phase; the asexual phase the asexual phase; the sexual phase
Question 15 __________ molds are found in forests, fields, and in soil. They exist in two forms, individual amoeboid __________ and diploid multinucleated __________.
Question 15 options: Slime; sporangium; flagellated cells Water; sporangium; flagellated cells Slime; cellular slime molds; plasmodial slime molds Water; cellular water molds; plasmodial water molds
Question 16 __________ are among the most numerous of all unicellular algae in the oceans and produce a major portion of the earths oxygen supply.
Question 16 options: Red algae Sporozoa Dinoflagellates Diatoms
Question 17 The phenomenon known as red tide is caused by
Question 17 options: population explosions in dinoflagellates. population explosions in red algae. built up remains of diatoms. bacterial invasion of the phytoplankton.
Question 18 The seaweed observed on the shoreline in the north temperate zone, sometimes called kelp, is
Question 18 options: green algae. blue-green algae. red algae. brown algae.
Question 19 Ice cream, sherbet, and cream cheese are made from alginate, a pectinlike material produced by __________ algae. An emulsifying agent used in cosmetics and chocolate, as well as the wrappings for sushi rolls are made from extracts or parts of __________ algae.
Question 19 options: brown; green brown; red red; green green; brown
Question 20 Saved Green algae are believed to be closely related to the first plants, and are classified as plants by some authorities, because both groups
Question 20 options: have a cell wall containing cellulose. possess chlorophylls a and b. All of these choices accurately complete this statement. store reserve food in the form of starch.