生物
细胞生物学、遗传学、生态学与生命科学基础。
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gel electrophoresis separates dna for profiling based on the gender of …
size (length)
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what naturally occurring process does pcr mimic in a test tube? dna rep…
DNA replication
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if the sequence of one strand of dna is agtctagc, what is the sequence …
B. TCAGATCG
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in a human dna sample, you detect dna that is specifically from the x c…
Both males and females have an X chromosome, and you would have to check for the presence of a Y chromosome.
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the ______ chromosomes in a human cell from inside the cheek are found …
C. 46; nucleus
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the diagram depicts the general structure of dna, with a single nucleot…
From left to right (assuming the circled nucleotide's components are read in this order): phosphate group, sugar, nitrogenous base
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what intermolecular force is responsible for holding the two strands of…
C. hydrogen bond
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how are dna fragments separated using gel electrophoresis? smaller dna …
Smaller DNA fragments move through the gel more quickly than larger - fragments.
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what is the monomer that makes up dna? amino acid sugar guanine ucleoti…
nucleotide
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choose the dna nucleotide bases that complement adenine and guanine. th…
The nucleotide base that complements adenine is thymine. The nucleotide base that complements guanine is cytosine.
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choose the dna nucleotide bases that complement adenine and guanine. th…
Thymine
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label the components on the diagram of dna structure by using all three…
From left to right (assuming the leftmost box is for the X - shaped structure): chromosome, protein, DNA molecule
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how does the structure of dna encode genetic information? the number of…
the sequence of bases
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since dna is replicated semiconservatively, what does each new daughter…
one of the original strands and one new strand
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a dna molecule consists of two polynucleotide strands that form a doubl…
B. CTGA
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which enzyme separates the two complimentary strands of dna during dna …
D. helicase
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which of these describes a genome? the collection of genetic material i…
the collection of genetic material in a cell or organism
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which enzyme pairs corresponding nucleotides to a preexisting dna chain…
B. DNA polymerase
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question 1-19 a scientist claims to have discovered a new life - form t…
All living things are made of cells.
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question 1 - 19 a scientist claims to have discovered a new life form t…
The claim is unlikely because all living things are made of cells according to cell theory.
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question 1 - 18 allison has a sealed petri - dish each with a single ce…
The cells grown in a petri dish all come from pre - existing cells.
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question 1 - 17. study the diagram below of various organisms and their…
They are all composed of one or more cells.
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question 1-16 which statement best describes why cells need to reproduc…
to replace damaged or dead cells
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question 1 - 15 compare and contrast tissues and organs. which statemen…
Organs are made of multiple types of tissues working together
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waste removal vs. energy production in cells waste removal rate energy …
A. Energy production decreases
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question 1-13 why is it important for cells to maintain homeostasis? to…
to stay balanced and healthy
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a scientist recorded the number of cells in a growing culture over time…
The number of cells increases over time
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question 1 - 11. a scientist discovered a new microscopic organism. wha…
It contains cell structures and can reproduce through cell division.
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question 1 - 9 look at the diagram of a cell membrane. the cell membran…
Transport of materials would be hindered.
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question 1 - 10. a student observes that when a plant stem is cut, new …
Cells come from existing cells.
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automatically regulates involuntary bodily processes, such as breathing…
autonomic nervous system (ANS)
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energy produced by mitochondria type of cell plant cell 70 animal cell …
Animal cells produce more energy than plant cells.
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abrupt change from a negative to a positive charge of a nerve cell moto…
C. action potential
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look at the diagram of a plant cell below. which organelle is responsib…
Vacuole
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chemical messengers that transport nerve impulses from one nerve cell t…
neurotransmitter
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small endocrine gland that produces the hormone melatonin, which is inv…
pineal gland
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endocrine gland located just above the kidneys that produces various st…
B. adrenal gland
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question 1 - 7 look at the diagram of a plant cell below. which organel…
vacuole
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question 1 - 5 a student creates a model showing how plants make their …
chloroplasts and mitochondria
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question 1-4 which of the following best describes the main function of…
controls what enters and exits the cell
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layer of insulation on axons of certain neurons that helps speed nerve …
myelin sheath
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structure in the hindbrain involved in regulating basic life functions,…
D. medulla
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question 1 - 3 a student observes a cell under a microscope and notices…
B. cell wall
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completar complete the e - mail message using - er and - ir. asistir co…
(1) come (2) comparten (3) corro (4) asisto (5) escribes
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question 1-2 what is the smallest unit of an organism that is classifie…
B. a cell
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part of the nervous system regulates bodily processes that replenish st…
B. parasympathetic nervous system
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question 1 - 2 what is the smallest unit of an organism that is classif…
B. a cell
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question 1-1 how are cells in multicellular organisms different from th…
Cells in multicellular organisms are specialized to perform certain functions
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endocrine gland that produces hormones involved in growth, regulation o…
C. pituitary gland
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nerve cell within the central nervous system that processes information…
A. interneuron
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part of the nervous system that consists of the brain and spinal cord p…
central nervous system (CNS)
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bodys system of glands that release their secretions, called hormones, …
B. endocrine system
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5 posesivos using the subject pronouns as a cue, write a possessive adj…
5. 1. Mi 2. mi 3. Sus 4. tu 6. 1. aprenden; come 2. asiste; vive (not in options but correct form for residence context, if we assume the correct verb form is needed); leemos 3. v…
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40 multiple choice 2 points segregation inside prisons tends to ______ …
40. C. worsen 41. B. high caseloads 42. C. They do not take place in locked facilities.
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the \truth - in - sentencing\ laws made it _. easier for judges to reco…
1. C. harder for criminals to receive reduced sentences 2. B. genetic inferiority and poor parenting 3. A. commutation
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this time there was no murmur in the air, no warning of approaching dan…
to show the contrast between the peaceful silence and the devastation
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which items are minerals or contain minerals? check all that apply. law…
lawn fertilizer, topsoil, a diamond necklace, a copper electrical wire, a cellular phone
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marx and engelss communist theories imagined a worker revolution that w…
# Brief Explanations: Mao Zedong's policies were not failures in achieving common - good goals. His policies aimed at national independence, people's liberation, and building a so…
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9 multiple answer 10 points what has globalization increased the need f…
9. B. Cross - border collaboration and international standards 10. D. Transparency and accountability
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drag the tiles to the correct boxes to complete the pairs. match each e…
1. total cost of ownership 2. incorporation 3. consumer sovereignty
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what is a growing trend in how public services are delivered? less citi…
1. Customer - centric approaches focused on user experience. 2. Active partners in decision - making and service delivery 3. Strong ethical frameworks and commitment to public int…
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9. marx and engels communist theories imagined a worker revolution that…
Marx and Engels imagined a worker revolution leading to a class - less society for common good. Whether Mao Zedong's policies failed to achieve those goals is debatable and contex…
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1 multiple answer 10 points what has driven the transformation of publi…
1. Increasing demand for efficiency and effectiveness 2. New Public Management (NPM) 3. Enabled streamlined processes and improved transparency
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describe two negative consequences of the industrial revolution on peop…
Poor working conditions; Environmental degradation
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7 choose the answer that best completes the sentence below. according t…
# Brief Explanations: For question 7, Marx and Engels' view was that as new technologies developed, workers became part of the means of production for rich business - owners. "Aft…
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5 what is the main idea of this text? a capitalism is driven by two for…
5. C. Capitalism and communism are imperfect systems with opposing theories on property, competition, and wealth that have shaped societies around the world. 6. To encourage or mo…
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cultural practices used to encourage healthy rooting of cuttings includ…
Question 1: A. True Question 2: A. True
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container plants are easily shipped and transplanted. in addition, cont…
Question 21: A. True Question 22: B. False
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which of the following materials is easily composted for use in growing…
Question 13: C. All of the above Question 14: C. None of the above
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according to the production, what is the number one resource of any bus…
Question 1: C. Employees Question 2: B. Tissue Culture
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question 4 which of the following is not a micronutrient? a iron b nitr…
B. Nitrogen
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guided reading activity (continued) the english colonies are settled an…
1. Delaware became a separate colony mainly due to governance - related differences and geographical - political considerations. 2. The middle colonies were attractive for settler…
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which of the following is not true about cells? they can die. they make…
They are unable to reproduce.
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which of the following statements is true about all cells? they are rou…
They reproduce by dividing.
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what is the primary reason cells undergo cellular respiration? to suppl…
to convert food to useable energy
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what is cellular homeostasis? cellular homeostasis is the process throu…
Cellular homeostasis is the process of maintaining the cell's internal environment.
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which statement is true about all cells? they must take in energy and r…
They must take in energy and release waste products.
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write it! tommy and tracy are working hard to get in shape for field da…
Sweating cools the body to maintain a stable temperature. Increased breathing supplies more oxygen and removes carbon dioxide. Increased heart rate ensures proper blood circulatio…
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summarize it! drag and drop the words or phrases that accurately comple…
The most basic living unit of all organisms is the cell. Cells must do many important jobs to maintain a state of balance or homeostasis. Some examples of how cells maintain homeo…
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practice it! which of the following choices would most likely experienc…
cat
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practice it! which of the following are examples of how animals work to…
cellular respiration, Water, getting energy from food
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practice it! which of the following best describes what would happen if…
The cell would die.
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practice it! which of the following is not an accurate reason why pluto…
Pluto is still a planet, but is not a part of the International Astronomical Union.
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select the statement(s) that accurately describe how the evidence for s…
Pasteur found that organisms in the broth came from outside the flask. Boiled broth did not have any organisms living inside. Small organisms were caught in the neck of the flask …
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1. atoms are the smallest unit into which matter can be divided. they c…
1. Cells are the basic unit of life, similar to atoms being the basic unit of matter, and they combine to form larger biological structures just as atoms form molecules and object…
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question 5 (mandatory) (20 points) listen which of the leukemias includ…
C. ANLL
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question 4 (mandatory) (20 points) listen in aleukemic leukemia the abn…
False
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question 49 productive efficiency refers to the full employment of all …
Question 49: the use of the least - cost method of production. Question 50: false
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(last word) the government should choose pollution abatement for all so…
1. true 2. price would increase and its quantity would decrease.
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in moving along a supply curve, which of the following is not held cons…
1. the price of the product itself. 2. those other than the ones who consumed the product.
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the coase theorem suggests that the government does not have to be invo…
1. B. false 2. A. true
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if a person drives with less care after purchasing auto insurance, this…
1. moral hazard problem. 2. increase, quantity demanded to decrease, and quantity supplied to increase.
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a biologist is attempting to classify 54,000 species of insects by assi…
A. No, it is not possible to classify all the species by assigning 3 initials to each species. The biologist should use at least 4 initials instead.
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____ are organisms which must consume organic molecules for energy. het…
Heterotrophs
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water and carbon dioxide molecules are the reactants in the process of …
photosynthesis
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the original source of energy is sunlight, which is absorbed by heterot…
FALSE
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____ obtain energy by using the chemical energy stored in inorganic com…
b. Chemosynthetic organisms
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photoautotrophs provide ______ of the energy supply for life on earth. …
c. 99%
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are organisms capable of transforming one form of energy (light energy …
Autotrophs
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photosynthesis provides over ____ percent of the energy for life on ear…
B. 99