生物
細胞生物學、遺傳學、生態學與生命科學基礎。
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question 2 of 10 a trait has two alleles, represented by p and q. if p …
A. 0.65
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question 1 of 10 a plant has two alleles for color. the red allele is r…
B. 0.87
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3. cómo son las frutas de las flores del cactus? ¿cómo lo saben? las fr…
Las frutas del cactus son **comestibles, suelen ser rojas o amarillas, con una textura suave y sabor dulce** (o una descripción similar según el conocimiento). Lo sé porque **he e…
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question 10 of 10 when can exponential growth happen? a. when the death…
D. When there is no competition
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3.2.2 quiz: population structure what would be the most likely effect o…
C. Increased moose population
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4. razonar ¿la cantidad de plátanos será mayor o menor a medida que baj…
La cantidad de plátanos será **menor** a medida que bajas en la tabla (suponiendo que la tabla tenga una tendencia decreciente en la cantidad de plátanos a medida que se avanza a …
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question 8 of 10 the graph below shows the population of mice in an eco…
Option A is incorrect. At point A (early stage of logistic growth), the population size is small, resources are abundant, so the birth rate is higher than the death rate, and the …
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where has the population reached the carrying capacity in the graph sho…
C. Point D
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what causes competition in an ecosystem? a. organisms all want the same…
A. Organisms all want the same resources.
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question 5 of 10 why can the removal of one important species affect an…
C. All the organisms in an ecosystem interact with each other.
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question 4 of 10 which is a density-independent factor? a. space b. foo…
C. Hurricanes
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question 3 of 10 which describes immigration? a. a forest fire kills ma…
C. A pack of wolves moves into a forest.
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question 2 of 10 in a certain ecosystem, owls are predators for mice. t…
B. The population of owls decreases.
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question 1 of 10 where does population level off in logistical growth? …
C. At the carrying capacity
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moritz is feeling hopeless and has very little energy. which strategy c…
A. starting a daily journal
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what makes up a vaccine? ○ red blood cells ○ white blood cells ○ a weak…
C. a weakened or dead form of a pathogen
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Question was provided via image upload.
1. Function - joining: - Your nervous system \(\boldsymbol{\text{is your body's command centre}}\) - Originating from your brain it controls your \(\boldsymbol{\text{movements, th…
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Question was provided via image upload.
### Fill - in - the - blanks (first red box): - The central nervous system (CNS) controls most functions of the body and mind. It consists of two parts: the brain and the spinal c…
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percentage of college degrees awarded to women (1970–1995) the followin…
B. It is a secondary source because it is secondhand information.
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why was the uss maine sent to cuba in 1898? it was sent to bring diplom…
The option: "It was intended to protect American citizens who were in danger in the Cuban Revolution."
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the glorious revolution of 1688 helped convince american colonists that…
they had the right to overthrow an unjust government.
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which best describes why french and us diplomats were unable to improve…
A. French diplomats demanded large bribes and loans.
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ter a in 1925, john scopes broke a state law in tennessee called the bu…
teaching about evolution.
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4. what organs make up the central nervous system (cns)? join them with…
### Question 4 (Matching): - Cerebrum: rounded shape, two symmetrical halves called cerebral hemispheres - Cerebellum: has many folds and coordinates our voluntary movements - Spi…
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nervous system a. look carefully the next image, label its parts with t…
The unlabeled (hand - related) dropdown should be labeled as "PERIPHERAL NERVES" (the option from the box: PERIPHERAL NERVES).
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a student set up an experiment to test the effects of soil compaction o…
D. Water all of the containers the same amount and at the same time (assuming the options are labeled A to D with the last option as D; if original labels differ, adjust. Here the…
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during a lab experiment, a beaker of hydrochloric acid was accidentally…
A. A base should be used to neutralize the liquid.
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______ was the process that dried out the sahara and turned it into a v…
D. Desertification
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the glorious revolution of 1688 helped convince american colonists that…
they had the right to overthrow an unjust government.
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read the passage from animal farm. it was a few days later than this th…
A. repetition (Incorrect, as explained) B. hyperbole (Incorrect, as explained) C. name - calling (Incorrect, as explained) D. card - stacking (Correct, as explained) (Note: Assumi…
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read the passage from animal farm. as the summer wore on, and the windm…
B. Lies about Frederick’s farm are told to enrage the animals and inspire them to work harder.
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read the passage from animal farm. in the late summer yet another of sn…
B. Those in power may spread propaganda to further their cause.
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the lesson question for this lab is \what is the effect of the type of …
Yes, the lab procedure should help address the question. It likely involves simulating different food types and observing which bird - beak types (represented by tools/models) are…
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questions 4 and 5 refer to the following passage. nearly 75% of plant a…
A. Some forms of life were able to survive in spite of the decrease in available sunlight. ### Question 5
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in the lab, you will change the number of birds with each beak phenotyp…
The row showing the percentage of food eaten by the flock (for each beak phenotype) is used because it indicates the fitness (survival/reproductive success) of each beak phenotype…
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why was the uss maine sent to cuba in 1898? it was bringing medical sup…
The fourth option (the rightmost box): It was intended to protect American citizens who were in danger in the Cuban Revolution.
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in the lab, you will change the number of birds with each beak phenotyp…
Percentage of food eaten by the flock
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12 scientists today are studying tidal power as an alternative energy s…
B. The two groups of scientists are looking at different specific aspects of the same scientific problem. ### Question 13
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percentage of college degrees awarded to women (1970–1995) the followin…
C. It is a primary source because it is firsthand information. (Wait, no, the options are: first box: It is a secondary source because it is secondhand information. Second: second…
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4 a student plants four african violet plants in four identical pots to…
D. all of these above ### Question 5
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excerpt from john f. kennedy’s inaugural address january 20, 1961 vice …
B. President Kennedy vows to uphold the principles the country was founded on, while assisting the poor as well as promoting peaceful relationships with allies and enemies.
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vice president johnson, mr. speaker, mr. chief justice, president eisen…
The new generation of United States’ citizens will continue to fight for freedom.
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use what you know about natural selection to fill in the blanks in the …
If the type of food available changes, then the frequency of different types of bird beaks will change... because natural selection will favor the survival and reproduction of bir…
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17. multiple choice: in which cerebral lobes is the speech center locat…
a) frontal
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flock x flock y flock z the birds shown above have beaks with three dif…
Flock Y
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flock x flock y flock z the birds shown above have beaks with three dif…
mutations.
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check all statements below that are true. □ all organisms must compete …
- All organisms must compete for survival - Some organisms have phenotypes that make them better competitors than others in their environment - Natural selection continues to occu…
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15 multiple choice 1 point when nehemiah arrived in jerusalem, which di…
A. He secretly surveyed the walls and gates of the city at night. ### Question 16 (King Cyrus's decree affecting Jews)
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example3 a steel pipe weighting 10 kn is suspended from a couple of ste…
The internal stress of the steel - wire rope is approximately \( \boldsymbol{127.3\space MPa} \) (or \( 1.273\times10^{8}\space Pa \)).
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complete the sentence. seattles woodland park zoo aims to help endanger…
by breeding animals in captivity
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read the sentence. since americans are obsessed with the latest cell ph…
A. obsessed
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you want to buy either a wood pellet stove or an electric furnace. the …
(a) Pellet stove: \( y = 15.15x + 2160 \); (b) Electric furnace: \( y = 33.15x + 1250 \); (c) Graph the two linear functions \( y = 15.15x + 2160 \) and \( y = 33.15x + 1250 \)
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arrange the steps of dna replication in the correct order, from the fir…
1. The DNA double helix unwinds to expose the two strands. 2. DNA polymerase adds matching nucleotides to the template strands. 3. The newly added nucleotides are joined to form a…
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s lis e c genetic mutations , which may result in dropdown with options…
inheritable variations
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select the correct answer(s) from the list(s). (1 point) environmental …
First blank: mutation Second blank: genetic disorders (or heritable mutations, etc. depending on the list options, but the core is mutation leading to heritable changes in reprodu…
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which event during dna replication is a major source of new, inheritabl…
B. An error occurring when the DNA is copied.
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select the correct answer. which of these is a characteristic of social…
D. universal
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select the correct answer. what factors have a link to deviance in reck…
B. personality factors
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what does the illustration represent? fox frog chipmunk grasshopper bee…
a food web
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which statement is true about energy in an ecosystem? energy flows from…
Energy for most ecosystems originates from the Sun.
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mutualism choose commensalism choose parasitism choose choose a symbiot…
Mutualism: The relationship between two or more organisms that live closely together and benefit from each other. Example: fungus and algae. Commensalism: A relationship in which …
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the act of one organism pursuing and consuming another organism for foo…
prey
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what is the difference between the biotic and abiotic factors? ○ biotic…
The option that states "Biotic factors are living things and abiotic factors are non - living things" (assuming the first option was meant to have this correct description, as per…
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cells are the building blocks of life! an organism made of one cell is …
D. multicellular
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use the diagram to help you answer the question. burning fossil fuels v…
burning fossil fuels, deforestation
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which step in transcription occurs first? ○ mrna moves the code from th…
C. RNA polymerase attaches to the promoter.
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what does a karyotype show? ○ genetic abnormalities ○ relationships amo…
A. genetic abnormalities
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many different types of mutations can occur within the body. an individ…
A. silent
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which does not occur during translation? ○ trna pairs with complementar…
C. DNA is transcribed into a complementary strand of mRNA.
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plants and animals also release carbon into the environment. during res…
First blank: release Second blank: absorb (or take in) Third blank: released (Note: Depending on the exact vocabulary expected, but based on the text and diagram: - Respiration (p…
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which diagram correctly shows how homozygous alleles are found on homol…
The diagram with "aa" (the lower one)
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both plants and animals take in carbon from the environment. during pho…
The true sentences are: - After eating a nut, carbon from the nut becomes part of a squirrel's body. - \( \text{CO}_2 \) is absorbed by trees during photosynthesis. - Plants use g…
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francois jacob and jacques monod studied escherichia coli (e. coli) bac…
Two operons regulate gene control in E. coli (the last option among the given choices, assuming the options are ordered as presented: the fourth option textually is "Two operons r…
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this diagram shows some of the processes by which carbon moves in a for…
respiration, decomposition
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living things use carbon - based molecules for energy. for example, whe…
The deer’s cells break down molecules in the plant to form new molecules and release energy.
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which best describes a codon? ○ a cell structure that gives the master …
C. the sequence of three bases that codes for a specific amino acid
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the structure of dna resembles a twisted ladder. which structural compo…
C. nitrogenous base pairs
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carbon is essential for all living things on earth. in fact, all of the…
A. Some nonliving things contain carbon B. The chemical symbol for carbon is C C. All living things contain carbon D. Carbon moves between the living and nonliving parts of Earth
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which of the following is part of the biosphere? birds lakes mountains …
birds
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which question is the best to determine if this alternative type of hea…
B. Does the weather in this area impact how well the system works?
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is the following statement true or false? the biosphere includes the la…
true
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4. use the picture to answer the following question. which energy resou…
A. hydropower, a renewable resource
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directions observed traits in a population of broadleaf arrowhead, by f…
D. Although sex allocations became overwhelmingly female biased by day 20, male flowers’ estimated reproductive success rate did not vary from day 5 to 20.
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exponential growth is most likely to occur when conditions are optimal,…
a population of carp that is released into a new habitat with few predators and plenty of food
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exponential growth is most likely to occur when conditions are optimal,…
a population of carp that is released into a new habitat with few predators and plenty of food
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becoming a world power directions: true/false indicate whether the stat…
1. False 2. True 3. True 4. True 5. False 6. B. Asia 7. A. all countries would be allowed to trade with China 8. D. Colombia 9. C. Wilson's policies were ridiculed and U.S. foreig…
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match each population growth model to the graph that best represents it…
Left graph (first) → exponential growth Middle graph (second) → logistic growth Right graph (third) → linear growth (So the boxes below the graphs should be filled as: First box (…
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match each population growth model to the graph that best represents it…
Left graph: Exponential growth Middle graph: Logistic growth Right graph: Linear growth (So the first (left) box: exponential growth, second (middle) box: logistic growth, third (…
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match each statement to the growth model it best describes. occurs when…
- Linear growth: "Growth rate stays roughly constant over time", "Occurs when the number of reproductive individuals doesn't change" - Exponential growth: "Occurs when resources a…
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logistic growth occurs whenever a populations size approaches its carry…
a stand of maple trees in a dense forest that compete for sunlight
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first read: comprehension identify the choice that best answers the que…
C. The child is kidnapped and carried into the woods by the Windigo.
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curve that levels off as population size approaches the carrying capaci…
1. The bacterial population's growth rate between hours 15 and 16 was greater than its growth rate between hours 14 and 15. 2. Its growth rate between hours 17 and 18 was less tha…
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match each population growth model to the graph that best represents it…
Left Graph: logistic growth Middle Graph: exponential growth Right Graph: linear growth
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compare linear, exponential, and logistic growth. | | linear growth | e…
| Description | Linear growth | Exponential growth | Logistic growth | | --- | --- | --- | --- | | Growth rate stays roughly constant over time | ✔️ | ❌ | ❌ | | Growth rate initia…
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logistic growth occurs whenever a populations size approaches its carry…
a wolf population that has been established in an area for decades, with a stable but limited prey population
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order the time periods. start with the period during which the populati…
1. between hours 2 and 4 2. between hours 12 and 14 3. between hours 14 and 16 4. between hours 18 and 20 5. between hours 16 and 18
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ecosystems and their resources are finite. eventually, populations run …
17 billion
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bacterial population select all the statements about this population th…
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 hour 19.
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exponential growth is most likely to occur when conditions are optimal,…
B. a colony of rabbits that is released into a new habitat with no predators and plenty of food
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complete the sentences. the bacterial populations growth rate between m…
1. The bacterial population’s growth rate between minutes 90 and 120 was **greater than** its growth rate between minutes 60 and 90. 2. Its growth rate between minutes 120 and 150…