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burgundyrat548Lv1

28 Sep 2019

the theory of endosymbiosis is based on

evidence from the fossil record.

the knowledge that chloroplasts and mitochondria resemblebacteria.

similarities between chloroplasts and other organelles inanimals.

the experiments in which bacteria were grown in plant cells andformed chloroplasts.

the knowledge that ribosomes are structures found in bacteria,plants, and animals.

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Hubert KochLv2

28 Sep 2019

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16. Which of the following statements best describes a commensal symbiotic relationship between two species? Both species benefit. One species benefits and the other is unaffected. One species benefits and the other is harmed. Both species are harmed.

17. The fundamental niche of an organism is determined by ______ factors, while the realized niche is determined by ______ factors. biotic; abiotic abiotic; biotic biotic; biotic abiotic; abiotic

18. Competition between species can be reduced as a result of character displacement. This is because one of the species becomes extinct. the species will no longer compete for the same resource. the niche of at least one of the species is changed. Both B and C are correct.

19. When they winter in Central and South America, robins form flocks and feed on fruit. During the summer, they migrate to North America, where they feed on caterpillars, earthworms and other animals. These birds are best described as herbivores. omnivores. detrivores. carnivores.

20. For your final examination before you receive your degree from Penn State, you have been given a slide that contains an unknown tissue from a multi-cellular eukaryote. You have been asked to identify if that tissue is from an animal, a fungus, or a plant. As you stare through the microscope at the slide, you remember that you learned the major differences between these cells in Biology 11. You look for the presence of ______, found only in plant cells, and the absence of ______, never seen in animal cells. But, the cells that you are looking at have a cell wall and do not have chloroplasts. You confidently circle ______ on the answer sheet. chloroplasts; mitochondria; animal mitochondria; chloroplasts; animal chloroplasts; cell walls; fungus mitochondria; cell walls; fungus

Question 1 Which characteristic(s) of mitochondria andchloroplasts supports their existence as independent prokaryoticcells that were engulfed by eukaryotic cells?

Question 1 options: their size presence of their own DNA theirself-replication by binary fission all of these characteristicssupport that mitochondria and chloroplasts were independentprokaryotic cells that were engulfed by eukaryotic cells

Question 2 Mitochondria originated from __________, which wereengulfed during __________ endosymbiosis. Chloroplasts originatedfrom __________, which were engulfed during __________endosymbiosis.

Question 2 options: aerobic bacterium; primary; cyanobacteria;primary anaerobic bacterium; primary; cyanobacteria; secondarycyanobacteria; primary; aerobic bacterium; secondary cyanobacteria;primary; aerobic bacterium; primary

Question 3 Saved Secondary endosymbiosis refers to the processby which

Question 3 options: prokaryotes acquired chloroplasts.prokaryotes acquired mitochondria. eukaryotic cells engulfedcyanobacteria. eukaryotic cells with mitochondria engulfed aphotosynthetic.

Question 4 Saved Though there are exceptions, __________ is acommon reproductive strategy among protists.

Question 4 options: sexual reproduction by mitosis asexualreproduction by mitosis binary fission asexual reproduction bymeiosis

Question 5 Protists with chloroplasts are __________ that maketheir own food. Protists that lack chloroplasts ___________ and arethus heterotrophic; this group is generally known as__________.

Question 5 options: parasites; ingest food; protozoansheterotrophs; photosynthesize; plankton photosynthetic autotrophs;ingest or absorb food; protozoans green algae; are parasites;plankton

Question 6 An endosymbiotic protist that does not cause diseaseis likely

Question 6 options: plankton. a protozoan. a parasiticheterotroph. a photosynthetic autotroph.

Question 7 The euglenoids are

Question 7 options: euglenoids can be all of these things.photosynthetic organisms with chloroplasts. heterotrophic organismswithout chloroplasts. flagellated freshwater unicellularorganisms.

Question 8 African sleeping sickness and Chagas disease arecaused by

Question 8 options: amoeboids found in zooplankton. euglenoidswith chloroplasts. photosynthetic protists. parasiticflagellates.

Question 9 Amoeboids feed by

Question 9 options: photosynthesis, by which they make their ownfood in their chloroplasts. phagocytosis, which occurs aspseudopods 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. areamoeboids with shells called tests. have pseudopods, but are notamoeboids. do not have pseudopods, though they do have shells,called tests.

Question 11 A ciliate might have __________, which dischargestructures that are useful in defense or prey capture.

Question 11 options: anal pores trypanosomes contractilevacuoles trichocysts

Question 12 Ciliates reproduce __________ and have __________ tocontrol metabolism and reproduction.

Question 12 options: both sexually and asexually; two types ofnuclei sexually; a single nucleus asexually; two types of nuclei bybinary fission; a nucleoid

Question 13 The nonmotile apicomplexan Plasmodium vivaxcauses

Question 13 options: Chagas disease. vaginitis. African sleepingsickness. malaria.

Question 14 Which phase of Plasmodium vivaxâs life cycle takesplace in the human liver? In the mosquito carrier?

Question 14 options: the sexual phase; the asexual phase theasexual phase; the sexual phase

Question 15 __________ molds are found in forests, fields, andin 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; plasmodialwater molds

Question 16 __________ are among the most numerous of allunicellular algae in the oceans and produce a major portion of theearths oxygen supply.

Question 16 options: Red algae Sporozoa DinoflagellatesDiatoms

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 northtemperate 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 fromalginate, a pectinlike material produced by __________ algae. Anemulsifying agent used in cosmetics and chocolate, as well as thewrappings 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 relatedto the first plants, and are classified as plants by someauthorities, because both groups

Question 20 options: have a cell wall containing cellulose.possess chlorophylls a and b. All of these choices accuratelycomplete this statement. store reserve food in the form ofstarch.

emeraldpanda238

In a population of small homeotherms (endotherms), a mutation arises that results in the inner mitochondrial membrane having fewer folds(see page 3). A scientist measures the total length of the membrane within 10 members each of the two different types of animals. He finds that in the less folded membrane (animal type LF) the length is at about one-third that of the more folded membrane (animal type MF).

Based on the above finding he would correctly predict which one of the following? Top of Form

a) Animal type LF is capable of producing more ATP than animal type MF
b) Animal type MF is capable of producing more ATP than animal type LF.
c) There is no difference in the amount of ATP produced by the 2 types of animals.
d) Glycolysis does not occur in animal type LF.
e) Glycolysis does not occur in animal type MF.

Which of the following observations provide the best evidence for the Endosymbiotic Theory of the origin of Eukaryotes?

a) Most bacteria are much larger than mitochondria and chloroplasts.

b) Prokaryotes, mitochondria, and chloroplasts all have cell walls.

c) Prokaryotes, mitochondria, and chloroplasts all have DNA and ribosomes.

d) Prokaryotes, mitochondria, and chloroplasts cannot reproduce themselves.

e) Prokaryotes, mitochondria, and chloroplasts are not surrounded by membranes.

Boomer Lake with _______ nitrate and phosphate concentrations would be likely to have a lower concentration of dissolved oxygen during the __________.

a) high; day

b) high; night

c) low; day

d) low; night

In a particular population of 100 prairie dogs living in 100 acres, growth rate (r) = 0.1 prairie dogs/prairie dog/year.

[14] For this population, what is a possible combination of b and d?

a) b = 200 births/100 individuals/year and d = 190 deaths/100 individuals/year

b) b = 200 births/100 individuals/year and d = 200 deaths/100 individuals/year

c) b = 190 births/100 individuals/year and d = 200 deaths/100 individuals/year

d) b = 500 births/100 individuals/year and d = 400 deaths/100 individuals/year

e) none of the above are correct

After learning all she could about ant hills our researcher decided to conduct some population surveys of the ants in her research area. She recorded the following results for a 2 acre plot over a period of 3 years:

Beginning of year # # ants

1 500

2 600

3 720

What would the expected ant population size (N) be at the end of the 3rd year (beginning of the 4th year)? ï answer: _____ants

a) 144 b) 744 c) 840 d) 864 e)1320

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evidence from the fossil record.
	the knowledge that chloroplasts and mitochondria resemblebacteria.
	similarities between chloroplasts and other organelles inanimals.
	the experiments in which bacteria were grown in plant cells andformed chloroplasts.
	the knowledge that ribosomes are structures found in bacteria,plants, and animals.