生物
細胞生物學、遺傳學、生態學與生命科學基礎。
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which quotation from \hiawatha the unifier\ reflects the culturally spe…
# Breve Explicación: La opción A muestra que Hiawatha dio a algunas familias los mismos regalos y enseñanzas que a otras, lo que implica igualdad entre ellos. Las opciones B y C n…
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question 4 points 2 identify the improved version of this sentence belo…
The caecilian, a cold - blooded amphibian, looks like an earthworm.
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the little company assembled on the log were all children (at least in …
It shows that the people (including adults) were immature, silly, and careless.
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according to the narrator, by damaging the ecosystem, we _____. oa. for…
B. damage ourselves
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fill in the blank question a(n) is the long thin process of a neuron th…
axon
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multiple choice question multipolar neurons called ______ neurons send …
B. motor
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multiple choice question what is the function of neuroglia? propagate a…
Provide support and protection for neurons
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fill in the blank question neurons that are always found between other …
Interneurons
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multiple choice question what is the myelin sheath composed of? dendrit…
B. Neuroglial cells
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fill in the blank question the and the make up the central nervous syst…
Brain, Spinal Cord
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multiple choice question nerve impulses are transmitted from peripheral…
B. sensory
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list the following in the correct sequence as they occur in response to…
1. Sensory receptor detects a stimulus 2. Afferent nerves carry sensory information to brain and spinal cord 3. Integration occurs in the CNS 4. Efferent nerves carry motor inform…
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fill in the blank question are highly branched processes of a neuron th…
Dendrites
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multiple select question select all that apply identify the two princip…
Neuroglia Neurons
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multiple choice question detection and transmission of sensory input, i…
C. Nervous
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multiple choice question the endothelial cells of some capillaries have…
A. fenestrae
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fill in the blank question there are no gaps between endothelial cells …
continuous
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according to president reagans speech at moscow state university, lack …
A. both economic growth and creative spirit
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question 1 points 2 in his speech, president reagan says, \watch it cat…
B. Ideas
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tunica externa, tunica intima and the tunica media are all ________. la…
layers found in the walls of blood vessels
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select all that apply indicate the way(s) in which the circulatory syst…
- Regulates amount of blood flowing to each tissue - Delivers $O_2$ and nutrients - Removes wastes
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question 2: what kind of effect does weather have on an ecosystem? how …
Question 2: Weather affects ecosystems by changing temperature, precipitation, etc. For living things, it impacts growth, etc. For non - living things, it changes soil moisture, e…
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answer the following three questions. living and non - living things al…
- Tree: Biotic - Grass: Biotic - Lily pads: Biotic - Fish: Biotic - Bird: Biotic - Person: Biotic - Water: Abiotic - Air: Abiotic - Soil: Abiotic - House: Abiotic - Boat: Abiotic
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maintaining biomes in this activity, you will explain what you just lea…
c. Biome
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in this activity, you will explain what you just learned about the impo…
d. Extinction
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in this activity, you will explain what you just learned about the impo…
A. True
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in this activity, you will explain what you just learned about biodiver…
True
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balancing biodiversity. in this activity, you will explain what you jus…
False
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in this activity, you will explain what you just learned about biodiver…
C. Species
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in this activity, you will explain what you just learned about biodiver…
B. Ecologist
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in this activity, you will explain what you just learned about biodiver…
B. Biodiversity
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in this activity, you will explain what you just learned about abiotic …
True
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in this activity, you will explain what you just learned about abiotic …
A. Abiotic
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in this activity, you will explain what you just learned about abiotic …
True
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factors in an ecosystem in this activity, you will explain what you jus…
True
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in this activity, you will explain what you just learned about abiotic …
True
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the instantaneous growth rate r of a colony of bacteria t hours after t…
$2,3$
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georgia created a buffer between the english colonies and ____________ …
C. Spanish
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about 10% of the population has a particular genetic mutation. 600 peop…
$7.35$
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these pictures show the petri dish of bacteria at three points in time.…
- The population ran out of space. - The population used up its supply of food.
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select all the statements about this population that are supported by t…
- The population grew relatively slowly for the first 12 hours. - The population grew relatively quickly between hours 14 and 18. - The population size did not change much after h…
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select all the statements about this population that are supported by t…
The bacterial population's growth rate between minutes 150 and 180 was greater than its growth rate between minutes 90 and 120. During each 30 - minute interval, the population's …
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linear growth is most likely to occur when the number of reproductive i…
a colony of bees, which always has one reproductive female no matter how big the colony gets
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the naked mole - rat population grew by approximately the same number o…
3
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select all the statements about this population that are supported by t…
- More individuals joined the population than left the population. - Population growth was positive.
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by tracking births, deaths, immigrants, and emigrants, scientists can m…
18
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multiple - choice question the house of burgesses was the first form of…
C. representative government
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a population consists of all the individuals of a particular species th…
population growth = (births + immigrants) - (deaths + emigrants)
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estrategia: sintetizar 5 attempts left due october 3rd 11:59 pm después…
1. Oficialmente no tienen suficiente visibilidad para las organizaciones y el derecho internacional. 2. Las hambrunas y la desertificación
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4. ¿cuál es una consecuencia de la migración climática mencionada en el…
4. La inseguridad alimentaria. 5. Las actividades que aseguran necesidades vitales. 6. Las migraciones climáticas suponen retos difíciles de cumplir.
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según el artículo, elige la mejor respuesta para cada pregunta. 1. ¿cuá…
1. Las causas de las migraciones son múltiples y entrelazadas. 2. Los desplazamientos internos, provocados por desastres naturales, aumentaron. 3. No se consideran migrantes climá…
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según la lectura, indica si cada oración es cierta o falsa. 1. la conve…
1. False 2. True 3. True 4. False 5. False
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question 10 of 10. according to the essay, what was one of the reasons …
D. Because of his rejection of poetic guidelines
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one argument explaining why viruses are not living is that viruses depe…
use energy, reproduction
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what two types of figurative language are present in the following exce…
Metaphor, Simile
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brutus: he is not doubted. a word, lucius. how he cassius received you …
his external conflict with Cassius
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massachusetts this battle took place on: add text people/groups involve…
This battle took place on: June 17, 1775 People/groups involved: British, American colonists Who Won? British Why did this battle occur? Tensions over taxation and governance betw…
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while many russian soldiers were on the front during world war i, most …
joining the riots instead of stopping them.
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what was one consequence of the october revolution? vladimir lenin was …
The Bolsheviks ended Russia's involvement in World War I.
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what was a cause of the russian revolution? a large, restless middle cl…
B. an autocratic monarchy
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how did rasputin affect the relationship between the government and the…
Rasputin was a faith healer who had undue influence over the tsarina and the government, which many Russian citizens resented.
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using the same independent and dependent variables as in the first expe…
Low intensity, long duration exposure to radiation has a greater influence on the incidence of cancer than high intensity, short duration exposure. The incidence of cancer increas…
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read paragraphs 32 - 37. (32) the fact is that i cant write by gas - li…
B. by confirming that the husband will always have an excuse about why it is not the time to write
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what did the researchers conclude from the experiment about how cell ph…
Cell phone radiation increases the likelihood of certain cancers in male rats.
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evidence this matters because... therefore,... without b. fragilis, peo…
# Breve explicación: Los datos presentados muestran aspectos positivos y negativos de B. fragilis en salud, su aprovechamiento de alimentos en el tracto gastrointestinal y su prop…
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7 multiple choice 5 points which of the following is not a characterist…
7. A. Decay and decomposition 8. A. maintaining homeostasis
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mannitol salt agar (msa) is selective for which bacterial genus? proteu…
None of the above (assuming the last option is mis - typed and should be Staphylococcus)
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in a standard plate count, what range of colonies is considered countab…
Question 11: B. 30 - 300 Question 12: None of the above (but conceptually related to Staphylococcus - like halotolerant bacteria)
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question 9 (1 point) what color change occurs on mannitol salt agar if …
Question 7: C. Pink to yellow Question 10: True
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eosin methylene blue (emb) agar is commonly used to: identify lactose -…
1. Identify lactose - fermenting Gram - negative bacteria 2. True
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macconkey agar is designed to differentiate bacteria based on their abi…
Question 5: ferment lactose Question 6: True
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the spread plate method is used to: evenly distribute bacteria on an ag…
1. Evenly distribute bacteria on an agar plate 2. A single bacterial cell that formed a colony
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question 1 (bonus) (1 point) blood agar is considered a differential me…
Question 1: True Question 2: to distinguish between bacteria based on metabolic characteristics
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trial of a high school teacher john scopes for teaching evolution in a …
Scopes Trial (Scopes Monkey Trial)
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biol 2120 differential and selective media homework fill in the missing…
21. eosin, methylene blue 22. lactose 23. bile 24. black 25. mannitol 26. mannitol 27. Escherichia coli 28. sulfur 29. lactose 30. inhibiting
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12. a bubble in the durham tube means: a. glucose was oxidized b. acid …
12. C. $CO_2$ or gas was produced 13. B. No fermentation 14. C. Phenol red 15. C. Proteins are deaminated, leading to false alkaline results
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9. msa is selective due to its high concentration of: a. bile salts b. …
9. C. NaCl (salt) 10. B. Mannitol fermentation 11. B. Acid production from fermentation
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8. a positive result on bea is indicated by: a. red zone b. yellow slan…
C. Black precipitate in media
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7. bea is selective for which group? a. enterobacteriaceae b. staphyloc…
7. C. Group D streptococci or enterococci 8. (No correct option given among A and B as a positive result on BEA is indicated by a black - brown coloration, not red zone or yellow …
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4. a metallic green sheen on emb indicates: a. no fermentation b. weak …
4. C. Strong lactose fermentation 5. C. Produce $H_2S$ and ferment sugars 6. B. Sulfur reduction
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biol 2120 differential and selective media homework choose the best ans…
1. B. Gram - negative rods 2. C. Pink to red colonies 3. C. Lactose fermentation
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question 12 (1 point) the term aerotolerant anaerobe refers to an organ…
does not use oxygen, but tolerates it
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which of the following pairs of microbe classification terms and optima…
thermophile - growth at 37°C ### Question 2:
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bacteria that grow in mine drainage at ph 1 - 2 are probably which of t…
C. acidophiles ### Question 2
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question / (1 point) which tube in the figure shows the expected growth…
A. a
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question 5 (1 point) which of the following is the best definition of g…
Question 5: the length of time needed for a cell to divide Question 6: log phase
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question 3 (bonus) (1 point) lactobacillus acidophilus grows best at ph…
Question 3: B. False Question 4: A. death phase
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question 1 (bonus) (1 point) most pathogenic bacteria are therophiles. …
Question 1: B. False Question 2: B. 7
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in colorado, a recent ballot initiative was approved by voters to allow…
populations
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9. match the type of bacterium with its environment. each choice may be…
psychrotroph - A mesophile - D thermophile - E hyperthermophile - B psychrophile - C
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7. in which environment are you most likely to encounter a hyperthermop…
C. hydrothermal vent at the bottom of the ocean
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part c which of the following levels of biological organization include…
organisms
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5. pseudomonas aeruginosa is a common pathogen that infects the airways…
5. B. an obligate aerobe 6. D. low water activity
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rank the levels of biological organization from smallest to largest. ec…
organelle, organ, organism, population, ecosystem
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3. an inoculated thioglycolate medium culture tube shows dense growth a…
3. B. The organisms are facultative anaerobes. 4. B. acidophiles 5. B. an obligate aerobe
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1. if a culture starts with 50 cells, how many cells will be present af…
C. 1600 2.
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part a even though biology is a broad field of study, ________ serves a…
A. evolution
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is a virus alive? view available hint(s) yes, because a virus has an or…
No. Although viruses exhibit many of the characteristics of life, they are not considered to be alive.
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based on the results of the lab, fill in the following sentences. place…
Hand soap reduces bacterial diversity. Hand sanitizer reduces bacterial diversity. Hand sanitizer is superior at reducing bacterial diversity.
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make sure you understand the difference between independent and depende…
Independent variable: Use of hand soap, Use of hand sanitizer Dependent variable: Amount of bacterial diversity