生物
细胞生物学、遗传学、生态学与生命科学基础。
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question 6 of 6 a gene is best described as a segment of dna that: ○ co…
B. Contains the instructions for building a specific protein.
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the specific information or \code\ within a dna molecule that ultimatel…
Sequence of its nitrogenous bases.
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1) look at the model. then, choose the best answer. dna double helix wh…
structure of DNA
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the \backbone\ of a single dna strand, which provides its structural fr…
Deoxyribose sugar and phosphate groups.
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if a sequence of bases on one strand of a dna molecule is a-g-c-t-a, wh…
T - C - G - A - T
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how can you best display the m - o - m rate values in an easy - to - re…
B. Change all cell formats to percentage.
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deoxyribonucleic acid (dna) is a polymer made up of repeating monomer u…
C. Nucleotides
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question 1 of 6 in eukaryotic cells, such as human cells, the majority …
B. Nucleus
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read the paragraph. born in 1822, louis pasteur was a french scientist.…
4. "The use of Pasteur's process has prevented countless people from becoming ill."
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check your understanding- question 4 of 4 attempt 1 of 2 how might one …
A. All of the above
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why are closed systems considered theoretical models? they are very com…
Closed systems don't exchange anything with their surroundings and rarely occur.
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in the real world, are there any closed systems on earth? choose the co…
No, none of the systems on Earth are closed.
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practice 2 answer the following questions about cellular differentiatio…
1. A. cell 2. B. a tissue 3. C. an organ 4. D. an organ system 5. B. a tissue 6. C. an organ 7. D. an organ system 8. E. stem cells
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2. which of the following plants most likely grew in the dark? plant a …
B. Plant B
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1. the image below shows a small bean sprout. what does this sprout nee…
Light and water
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louis pasteur questions 25 this article is mainly about a. a contest co…
25. D. Pasteur's discoveries 26. D. all of the above 27. B. a container 28. A. variables and controls 29. B. small creatures that seemed to appear spontaneously 30. C. germs could…
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what distinguishes open systems from closed systems? all open systems a…
Open systems exchange energy, matter, and information with other systems
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the nucleotides thymine, guanine, cytosine, and adenine are used as bui…
D. Protein synthesis
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an open system is one that receives input from outside the system. for …
An earthworm taking in soil for nutrition
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macromolecule elements present monomers function examples carbohydrate …
B. waxes, prevents water loss and repels water
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why should (or shouldnt) america reinstate the death penalty for juveni…
There are multiple perspectives. Against: Juvenile brain development means less culpability and it goes against international human - rights norms. For: It could be seen as justic…
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a student completed a lab investigation to separate out a biomolecule f…
C. Nucleic acids
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ms. hanrahan, a sociology teacher, has asked her class to think about s…
"I love the food my grandma cooks that she learned to make growing up in Italy."
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what does the term \ecosystem\ refer to? living and nonliving entities …
living and nonliving entities in a specific area
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leannes friend has asked her to describe something that would be consid…
the act of smiling back at a person who smiles at you
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which of the following elements are most abundant in biomolecules? (cho…
A. Carbon, C. Nitrogen, D. Hydrogen, F. Oxygen
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which of the following categories of organic molecules is correctly pai…
B. lipids: provide slow, long-term energy to cells
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which of the following statements describes proteins? a only proteins a…
B. Only proteins are formed from amino acids joined by peptide bonds.
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living cells use ____________ as their main source of energy. a carbohy…
A. carbohydrates
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a student completed a lab investigation on an unknown biomolecule sampl…
C. Lipids
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what biomolecule is part of the structure of atp, nucleotides, and nucl…
C. ribose
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what is defined as \circular processes in which the output of a system …
C. feedback loops
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the owner of a pet store wants to determine how many fish she can keep …
The color of the fish
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match the scientists with their work. fill in the missing words a virus…
1. bacteriophage 2. gene
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read the excerpt from \climate change: an overview.\ one skeptic has of…
A. railed
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7. which scientist or team of scientists was first to isolate dna and c…
B. Avery
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6. which scientist or team of scientists was able to work out the molec…
Watson and Crick
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match the scientists with their work. which scientist or team of scient…
C. Franklin
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question 7 of 19 welfare and efficiency — end of chapter problem a. is/…
a. Private information
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match the scientists with their work. a group of team of scientists con…
D. Griffith
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match the culinary experts with their cookery books. bartolomeo scappi …
Physiologie du Goût (The Physiology of Taste) → Jean Anthelme Brillat - Savarin Opera dell'arte del Cucinare (The Opera Art of Cooking) → Bartolomeo Scappi Libro de Arte Coquinari…
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match the scientists with their work. chargaff noticed that in dna the …
Chargaff
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match the scientists with their work. which scientist or team of scient…
B. Miescher
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match the scientists with their work. 1. which scientist or team of sci…
D. Hershey and Chase
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read the excerpt from \climate change: an overview.\ today, ninety - se…
carbon emissions are directly related to climate change.
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federalism continued date chapter 4 test a fill in the blank for each o…
18. Federalism 19. Implied 20. reserved 21. Secession 22. F 23. T 24. T 25. F
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7. _ chinese philosophy emphasizing harmony with nature, \the way.\ 8. …
7. Taoism 8. Dynastic cycle 9. Mandate of Heaven 10. Karma
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solve the problem. use the correct number of significant digits. 9) ass…
$1.1\times10^{30}$
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taoism mandate of heaven buddhism hinduism caste system karma confucian…
3. Confucianism 4. Caste System 5. Reincarnation 6. Hinduism
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the monarch butterfly migrates thousands of kilometers from canada to m…
B. Specialist, because the butterfly relies on milkweed during the caterpillar life stage.
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the following graph shows the growth of a population of mice over 17 mo…
A. There was an overall increase in the size of the population because the population had not yet reached the environment's carrying capacity.
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which part of the dna is the most important because it is actually the …
nitrogenous bases
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which two parts make up the \backbone\ of dna? phosphate groups deoxyri…
phosphate groups, deoxyribose sugar
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growth curve population size carrying capacity (k) time which of the fo…
D. They produce many offspring, but few survive.
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a group of researchers tracked the size of a mockingbird population ove…
D. IV
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growth curve population size carrying capacity (k) k - selected species…
B. carrying capacity, that is access to food, shelter, and mates
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multiple - choice question what are the three parts of all nucleotides?…
a phosphate group, a nitrogenous base
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changes in the size of a population of antelope are shown in the table …
C. The antelope population overshot the amount that could be supported by the habitat, and many moved or perished.
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the subunits (=monomers) of nucleic acids are called amino acids nucleo…
nucleotides
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a particular strain of bacteria triples in population every 15 minutes.…
A. 9720
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federation matching in the space provided, write the letter of the term…
1. l. supremacy clause 2. g. inherent power 3. b. reserved power 4. m. expressed power 5. m. expressed power 6. h. dual federalism 7. c. grant - in - aid 8. n. full faith and cred…
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read the excerpt from \climate change: an overview\. one skeptic has of…
A. railed
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question #5 multiple choice which statement best describes the function…
The nervous system is responsible for sending and receiving signals.
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kudzu is a japanese ornamental plant that is considered an invasive spe…
B. Kudzu is r - selected, and it is an effective invasive because it propagates easily by producing many stems at a time.
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question #4 multiple choice a(n) ___ is a group of cells, with similar …
B. tissue
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is the group of words in bold a phrase or a clause? although both speci…
clause
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match the varnas, or social divisions, to where the story says they com…
Top - Priests, Middle - Warriors, Lower - Common People, Bottom - Servants
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the special process that makes haploid gametes is called mitosis menstr…
None of the above options are correct. The correct process is meiosis.
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the collective name for both sperm & eggs is centrioles somatic cells g…
gametes
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which of the following is most likely to explain khanistonias falling f…
A. Community groups have campaigned successfully for access to reproductive education and family planning.
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leah, larenda, and gabi decide to test what factors influence water abs…
D. the type of solution the egg is placed in
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tennessee state standard cse 2 demonstrate command of the conventions o…
1. A conjunctive adverb is a word that links independent clauses and indicates a relationship. 2. Complex items in a series (phrases or clauses with internal commas). 3. Manufactu…
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ada and elijah have decided to do an experiment testing how sunlight af…
1. B. type of soil 2. b. Can be tested by experiments or observations
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in order for something to be considered alive, what characteristics mus…
D. It must have all of the characteristics
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deja and zhi conducted an experiment to test their hypothesis that male…
B. They should reject their hypothesis. More males hatch at low temperatures, and more females hatch at high temperatures.
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a collection of ideas and beliefs that sound like science but is not su…
a. Pseudoscience Their conclusion may be inaccurate due to possible confounding variables and over - generalization from the initial hypothesis.
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valerie designed and conducted an experiment on pothos plants, which ar…
B. One is the experimental group, one is the control group, and together they show the effect of the direction of light.
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the unicorn is a legendary creature that has been described as resembli…
1. d. The unicorn is not a real animal and, therefore, has no role in biological investigations. 2. c. No, because a theory is a complex explanation that does not become a law.
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multiple - choice question each chromosome usually consists of two sist…
D. chromatids
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question 5 of 10 in 1990, the middle eastern country of iraq invaded it…
A. A recorded conversation between Iraq's generals the day before the invasion
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the structure of dna is called the double helix. the word \double\ is u…
it has TWO sides = two sugar phosphate backbones
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dna looks sort of like a weird ladder. the ungs\ of the ladder are the …
nitrogenous bases
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select the correct answer. which statement describes how george w. bush…
A. He became more willing to engage in nation - building
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ecology webquest #1 populations http://www.geography4kids.com/files/lan…
1. Population: A group of same - species individuals in an area. Increase: Birth, immigration. Decrease: Death, emigration. Humans and dogs: No, different species. 2. Limiting Fac…
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select all the correct answers. in what two ways did the bush administr…
B. by stating that Iraq harbored the al - Qaeda leaders C. by arguing that terrorism needed to be fought in Iraq and all over the world D. by telling the public that Iraq possesse…
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which pairings below are correct? a with g & c with t a with t & c with…
B. A with T & C with G
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what were three goals of clintons \third way\ politics? to combat \wedg…
- to contest beliefs that social spending was too expensive by creating policies that did not create a budget deficit - to help bridge the divide between Democrats and Republicans…
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what other very important biomolecules also contained phosphates? choos…
ATP, phospholipids
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digging deeper: cost - benefit analysis student instructions objective:…
1. Costs: Transportation cost, time cost, environmental impact cost. 2. Benefits: Convenience, safety, aesthetic value, potential savings. 3. Disrupted ecosystem services: Air - p…
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multiple - choice question based on its name (=deoxyribose) and its cla…
B. $C_5H_{10}O_5$
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multiple - choice question what sugar is found in dna? glucose sucrose …
None of the above options are correct. The sugar in DNA is deoxy - ribose.
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multiple - choice question franklin did not receive the nobel prize alo…
she was dead.
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which one of the scientists below did not receive the nobel prize for t…
B. Golgi
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which two scientists from the list below won the nobel prize for discov…
Crick
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true or false. every cell in your body contains the same 6ft of dna (=i…
TRUE
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read the passage from chapter 5 of animal farm. after surveying the gro…
technology
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true or false traits (=characteristics) are primarily control by dna & …
TRUE
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read it! stainless steel is a metal alloy that combines the most desira…
A. beneficial
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chapter 3: determining the credibility of sources 4 which of the follow…
4. a textbook chapter about Andrew Carnegie, a major industrialist 5. consult with a variety of sources about the Cold War 6. The facts presented are logical and reasonable. 7. a …
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4. this is motivation through internal measures, such as feeling of sat…
4. a. Intrinsic incentive 5. c. Coercion