生物
细胞生物学、遗传学、生态学与生命科学基础。
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what is meant by the description \antiparallel\ regarding the two stran…
The \(5'\) to \(3'\) direction of one strand runs counter to the \(5'\) to \(3'\) direction of the other strand.
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planting native trees on privately - owned land can help maintain biodi…
True
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these diagrams show three cell types—prokaryotic, plant, and animal—wit…
| | Prokaryotic cells | Plant cells | Animal cells | |--|--|--|--| | Cytoplasm | ✓ | ✓ | ✓ | | Cell membrane | ✓ | ✓ | ✓ | | Membrane - bound organelles | | ✓ | ✓ |
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which of the following characteristics of the structure of dna was dete…
the double helical structure
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base your answers to questions 10 and 11 on the calendar below, which s…
1. **Question 10**: - **Explanation**: - The lunar cycle is approximately 29.5 days. The first - quarter moon in July is on the 8th. - Let's calculate the date of the next first -…
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which structures are found in each cell type? complete the table. proka…
| | Prokaryotic cells | Eukaryotic cells | |---|---|---| | Rough endoplasmic reticulum | | ✔ | | Ribosomes | ✔ | ✔ | | DNA | ✔ | ✔ | | Nucleus | | ✔ |
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cytosine makes up 42% of the nucleotides in a sample of dna from an org…
A. \(8\%\)
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53 sequential events sequential events are chronological: an initial ev…
1. conducted research 2. walked 3. won 4. was struggling 5. bought 6. washed 7. forgot 8. take 9. got 10. return
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8) base your answer to the following question on the graph below, which…
8) (4) Earth's rotation and the Moon's revolution 9) (4) 29.5 days
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which structures are found in each cell type? complete the table. proka…
| | Prokaryotic cells | Eukaryotic cells | |--|--|--| | Rough endoplasmic reticulum | $\square$ (not present) | $\square$ (present) | | Ribosomes | $\square$ (present) | $\square$…
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which of the following best describes an invasive species? native plant…
Non - native species introduced to an area ultimately harming the ecosystem or human health.
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which of the following statements correctly describes one of chargaffs …
The percentages of adenine and thymine are roughly equal, as are the percentages of guanine and cytosine in the DNA of a given species.
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review the details below. • hawaiian surfers george freeth and duke kah…
A. A number of factors influenced the spread of surfing's popularity in the early twentieth century.
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in trying to determine whether dna or protein was the genetic material,…
DNA contains phosphorus, whereas protein does not.
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which structures are found in each cell type? complete the table. proka…
| | Prokaryotic cells | Eukaryotic cells | |--|--|--| | Cytoplasm | ✔️ | ✔️ | | Smooth endoplasmic reticulum | ❌ | ✔️ | | Cell membrane | ✔️ | ✔️ | | Rough endoplasmic reticulum |…
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in his transformation experiments, which of the following results did g…
Mixing a heat - killed pathogenic strain of bacteria with a living nonpathogenic strain can convert some of the living cells into the pathogenic form.
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which structures are found in each cell type? complete the table. proka…
| | Prokaryotic cells | Eukaryotic cells | |---|---|---| | Cytoplasm | ✓ | ✓ | | Smooth endoplasmic reticulum | | ✓ | | Cell membrane | ✓ | ✓ | | Rough endoplasmic reticulum | | ✓…
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which structures are found in each cell type? complete the table. proka…
| | Prokaryotic cells | Eukaryotic cells | |---|---|---| | Membrane - bound organelles | | ✔ | | Continuous loop of chromosomal DNA | ✔ | | | Linear chromosomes | | ✔ | | Mitochon…
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which structures are found in each cell type? complete the table. proka…
- Membrane - bound organelles: Prokaryotic cells (no), Eukaryotic cells (yes) - Continuous loop of chromosomal DNA: Prokaryotic cells (yes), Eukaryotic cells (no) - Linear chromos…
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below is a food web from a tundra ecosystem in nunavut, a territory in …
Arctic fox, earthworm, lichen, mushroom.
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cells can be categorized into two main types: prokaryotic and eukaryoti…
| | Prokaryotic cells | Eukaryotic cells | |---|---|---| | Ribosomes in the cytoplasm | $\square$ (should be checked) | $\square$ (should be checked) | | Golgi | | $\square$ (shou…
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17. the chart shows parts of a human being and a plant, at different le…
S and X
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15. this is a picture, or model, of a forest food chain. which of these…
how the wolf catches the deer
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9. some organelles are present in both plant and animal cells. each org…
Break down chemical energy; store DNA; provide a permeable barrier for the cell.
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green plants need light in order to survive. structures in the leaves a…
green
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7. many plants have thorns on their stems or leaves. what is the most l…
Thorns are an adaptation that some plants have evolved in order to discourage herbivores from eating the plant.
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read the excerpt from jane eyre by charlotte brontë. here, jane encount…
It is so beautiful that it seems almost unreal.
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read the excerpt from \to one in paradise,\ by edgar allan poe. for ala…
He uses internal and near rhyme to enhance the rhythm of his lyric poem.
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(such language holds the solemn sea to the sands upon the shore) shall …
The dead are constantly remembered by those who mourn.
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john adams and abigail adams wrote more than 1,100 letters to one anoth…
C. Abigail Adams requests that the new Code of Laws "Remember the Ladies" since all men are tyrants. Whereas, John Adams finds the idea of a new Code of Laws amusing and then stat…
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in the blank space below, place the evidence that best supports the cla…
According to EdSource, a journalistic website focused on education issues, learning algebra prepares students to enter our increasingly technology - oriented job market.
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apply principles of building proteins to health you are in a laboratory…
Second option: Allow the DNA to be transcribed to RNA and see what protein results.
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suppose the following amino acid chain was created based on a students …
The position of Met (Methionine) is an error. Met should be the first amino acid as it is coded by the start codon (AUG) in translation.
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chains of nucleic acids have directionality and are read in a certain w…
Codons are three base "words" that code for specific amino acids. They are non - overlapping and never overlapping the words.
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bonus a widows peak hairline is dominant (w) to a straight hairline (w)…
Widow's Peak Hairline: 75% Straight Hairline: 25%
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cumulative exam cumulative exam complete 21 22 23 24 25 26 27 28 29 30 …
Attend a local support group.
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shall i compare thee to a summers day? thou art more lovely and more te…
ABAB
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manifest destiny manifest destiny was the belief that it was americas d…
the belief that America would expand to the Pacific Ocean.
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questions 4 through 6 refer to the following. total state military pers…
B. The creation of larger state bureaucracies
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10. in rabbits, black fur (b) is dominant to white fur (b). a purebred …
Black Fur: \( 100\%\), White Fur: \( 0\%\)
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decide whether each function is carried out by lipids, proteins, or car…
| Function | Lipids | Proteins | Carbohydrates | |--|--|--|--| | Allow the cell to be recognized by other cells | | | ✔ | | Give the membrane its flexibility | ✔ | | | | Pump larg…
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this arrangement prevents certain molecules from crossing the lipid bil…
C. water, a very small polar molecule; D. carbon dioxide, a small nonpolar molecule
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question when khloe left her house in the morning, her cell phone batte…
The number of hours until Khloe's phone dies
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what is the primary role of dissolved oxygen in water for aquatic life?…
to allow aquatic animals to breathe
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4) what types of molecules make up the cell membrane? select all that a…
Carbohydrates, Proteins, Lipids
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5. how do algae, cyanobacteria, and plants produce their own food? (1 p…
They convert sunlight into chemical energy.
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which two animals use echolocation? bats and humans bats and dolphins d…
bats and dolphins
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read the excerpt from act 2, scene 1, of the tragedy of julius caesar. …
the cause for men to be lurking in darkness and what possible threat they pose to Portia and Brutus
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consisting of 3 layers of cells, the gastrula - stage embryo begins as …
a hollow sphere
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what is the correct sequence for light traveling through a microscope? …
light – slide – objective lens – eyepiece lens
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why does the sample on a microscope slide need to be very thin? so it c…
so light can shine through it from below
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which are uses of lasers? check all that apply. scanning barcodes trans…
All of the options (scanning barcodes, transmitting telephone and Internet signals, examining internal body parts, cutting through metals, ceramics, plastics, and cloth, correctin…
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question 8 of 10 how do modern monsters differ from historical monsters…
D. Modern monsters can hide within normal society; historical monsters lived outside of society.
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lesson 15: globalization and modern day advances new patterns of world …
A. The 1951 Refugee Convention
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14 un terrain a la forme dun trapèze isocèle. la petite base mesure $(3…
L'expression algébrique du périmètre est \( 9x + 27 \) m.
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8. read the conclusion: apex predators must eat much more than consumer…
D. Biomass shrinks with each trophic level. That is because between 80 and 90 percent of an organism's energy, or biomass, is lost as heat or waste. A predator consumes only the r…
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which are uses of fiber optics? check all that apply. transmission of t…
transmission of telephone signals, examination of internal body parts, decoration purposes, such as lamps
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under her cell phone plan, emma pays a flat cost of $66 per month and $…
A.
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part d: complete the table below. protein synthesis practice location i…
| Process | Location in the cell | Building blocks used | Purpose | |--|--|--|--| | DNA Replication | Nucleus (eukaryotic) | Nucleotides | To make two identical DNA strands | | Tr…
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lenticels are the pores in the bark providing a pathway for the direct …
Pores in the bark providing a pathway for the direct exchange of gases
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primary growth can be explained as change in length via the apical meri…
Change in length via the apical meristem
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match the names to the descriptions a. joseph henry b. charles brush c.…
1. E. Alessandro Volta 2. C. Georg Ohm 3. A. Joseph Henry 4. B. Charles Brush 5. D. Thomas Edison 6. F. Nikola Tesla
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question 9 nodes can be defined as________ the area in stem where leave…
The area in stem where leaves and buds arise from
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secondary growth can be explained as change in the diameter via the cam…
Change in the diameter via the cambium
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all gymnosperms and angiosperms bear cones. true false previous
False
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part c: give the appropriate descriptions to the images below. describe…
Left image (translation): mRNA is at ribosome. tRNA with anticodon brings amino acid. Amino acids form protein. Right image (transcription): DNA unwinds. mRNA is synthesized from …
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monocots have flower parts in fours or fives and their multiples. true …
B. False
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question 4 1 pts breastfed infants are ______ than babies who are fed i…
less likely to develop asthma and allergies
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question 4 gymnosperms are heterosporous which means they produce _____…
More than one
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question 3 ____________________ are plants with exposed seeds borne on …
Gymnosperms
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what is a microspore? it is a spore produced by the male cone of a gymn…
It is a spore produced by the male cone of a Gymnosperm.
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the eight levels of taxonomic organization in hierarchical order are- d…
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
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2. johnson & johnson organizes its company into major divisions such as…
A. Divisional Structure
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1. which organizational structure is determined by the relationships be…
D. Functional Structure
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the santiago family shares a family cell phone plan. the plan is for 3,…
Let \(m\) = the number of messages. Then \(m\geq3750\). The mother and the three children have used \(3050\) messages. The father has used at least 700 messages. So, the amount of…
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the santiago family shares a family cell phone plan. the plan is for 3,…
\(m\geq3750\)
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which statement best summarizes the early nineteenth - century revoluti…
Most revolutions were unsuccessful.
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13. the presence of freckles (f) is dominant to no freckles (f). jake a…
Freckles: \( 50\%\) No Freckles: \( 50\%\)
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12. can you curl your tongue? tongue - curling in humans (t) is a domin…
Tongue - curling: \( 100\%\) Cannot Curl Tongue: \( 0\%\)
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11. in cabbage butterflies, white wings (w) are dominant to yellow wing…
Homozygous dominant: \(0\%\) Heterozygous: \(50\%\) Homozygous recessive: \(50\%\)
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10. in rabbits, black fur (b) is dominant to white fur (b). a purebred …
Black Fur: \( 100\% \), White Fur: \( 0\% \)
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you notice someone showing all the signs of a severe allergic reaction.…
Use the epinephrine device.
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assignments courses alternate quiz mathematics 800 1 2 3 4 5 6 -(-4) < …
False
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most revolutions began with anger surrounding the issue of money. polit…
politics.
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determine the constant of proportionality (p). enter an equation in the…
The equation is \(b = 40n\)
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9. in guinea pigs, short fur (s) is dominant to long fur (s). two heter…
- Homozygous dominant: \( 25\% \) - Heterozygous: \( 50\% \) - Homozygous recessive: \( 25\% \)
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8. in flies, long wings (w) are dominant to short wings (w). two homozy…
Long Wings: \(0\%\) Short Wings: \(100\%\)
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one lasting effect of the age of revolutions was that liberals were suc…
some monarchs were inspired to be more democratic and granted rights to citizens.
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7. in cats, pointed ears are dominant to round ears. a homozygous reces…
Pointed Ears: 50%, Round Ears: 50%
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which scenario is most like the reason why revolutions started in ninet…
Middle - class people believe that they are too poor.
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7. in cats, pointed ears are dominant to round ears. a homozygous reces…
For cats: Pointed Ears \(50\%\), Round Ears \(50\%\) For flies: Long Wings \(0\%\), Short Wings \(100\%\)
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6. in corn plants, normal height (h) is dominant over short height (h).…
Normal Height: \(75\%\) Short Height: \(25\%\)
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5. a wrinkle - seeded plant (rr) is crossed with a round - seeded plant…
Genotype Probability (\%): RR: 0 Rr: 50 rr: 50 Phenotype Probability (\%): Round Seeds: 50 Wrinkled Seeds: 50
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for questions 28 to 32, read each question carefully. decide which of t…
28. B. early in the morning 29. C. photosynthesis 30. A. removes carbon dioxide from the atmosphere 31. D. added to the atmosphere by photosynthesis and removed by cellular respir…
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for questions 24 to 26, read each question carefully. decide which of t…
24. D. the presence of whitestem pondweed 25. D. the water temperature 26. A. an abiotic factor in a terrestrial ecosystem
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who had a successful revolution in the early nineteenth century? the fr…
the French
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20. match each description with the appropriate term listed. place your…
a. vi. food chain b. v. secondary consumer c. i. trophic level d. iii. omnivore e. vii. food web f. iv. decomposer g. viii. ecological pyramid h. ii. primary consumer # 21.
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4. in another one of mendels experiments, he crossed the offspring. two…
Genotype Probability (\%): - \(PP\): \(25\%\) - \(Pp\): \(50\%\) - \(pp\): \(25\%\) Phenotype Probability (\%): - Purple Flowers: \(75\%\) - White Flowers: \(25\%\)
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in organizing the events of odysseuss quest, why would the text in the …
It shows Odysseus encountering supernatural beings.
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for questions 15 to 19, read each question carefully. decide which of t…
15. C. producers 16. C. omnivores 17. D. an energy pyramid shows the amount of energy at each trophic level, while a biomass pyramid shows the mass transferred at each trophic lev…