生物
細胞生物学、遺伝学、生態学、生命科学の基礎。
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the sodium - potassium pump is involved in establishing the resting mem…
True
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why does depolarization occur? multiple choice more k⁺ diffuse into the…
More $Na^+$ diffuse into the cell than $K^+$ diffuse out of it
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during depolarization, which of the following statements about voltage …
Na⁺ gates open before K⁺ gates.
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which of the following statements about the resting membrane potential …
The exterior of the cell has a net positive charge, and the interior has a net negative charge
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place the following structures in the order that an electrical impulse …
1. Dendrites 2. Soma 3. Axon hillock 4. Internode 5. Node of Ranvier 6. Axon terminals 7. Terminal arborization
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jordans cell phone plan includes 5 gigabytes (gb) of data per month and…
A. $C(d)=\begin{cases}79.95&\text{for }0\leq d\leq5\\79.95 + 10(d - 5)&\text{for }d>5\end{cases}$
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correctly label the following anatomical features of a neuron. labels d…
- The round central part: Cell Body - Inside the cell body, the darker - colored round part: Nucleus - Inside the nucleus, the small dense part: Nucleolus - The branched structure…
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click and drag each term to the appropriate category to demonstrate whe…
Glycosaminoglycans: Ground Substance Chondroitin: Ground Substance Responsible for the flexibility of bone: Fibers Responsible for the stiffness of cartilage: Ground Substance Col…
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cartilage is best described as which of the following? multiple choice …
B. A relatively stiff connective tissue with a rubbery matrix
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6 click and drag each label to the appropriate category regarding the c…
- Found in dense regular connective tissue: Fibroblast - Component of fluid connective tissue: No appropriate match among given cell types - Secretes the matrix of hyaline cartila…
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topic 2: cell physiology & tissues 15 drag each label into the appropri…
Excitable cells that are cylindrical, branching, or spindle shaped → Muscular Tissue
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describe the four primary tissue types by selecting the correct word fr…
1. brain, excitable 2. epidermis, epithelial 3. Muscular, contraction 4. Connective
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click and drag each cellular component to the appropriate category base…
Membranous Organelles (1/2): Nucleus, Endoplasmic reticulum, Mitochondria Non - membranous Structures/Organelles (2/2): Centrioles, Cytoskeleton, Glycogen granules
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question 3 proteins called transcription factors are involved in ______…
D. the initiation, elongation, and termination stages
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which of the following moves large particles and fluid droplets across …
Vesicular transport
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which membrane transport process consumes atp and uses a carrier? multi…
D. Active
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topic 2: cell physiology & tissues 9 complete each statement by selecti…
1. macrophage 2. pseudopods 3. phagosome 4. phagolysosome 5. lysosome 6. vesicle 7. exocytosis
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explain why scientists use the metric system for scientific measurement…
Scientists use the metric system for scientific measurements because it is based on powers of ten for easy conversions, is a universal standard facilitating international communic…
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match each condition to its effect on diffusion rate by dragging each l…
Increases Rate of Diffusion (1/2): Villi and microvilli in the intestinal epithelium, Decreased cell height, creating a flatter cell, Decreased molecular weight, Increased tempera…
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under her cell phone plan, zendaya pays a flat cost of $42 per month an…
Inequality: $42 + 4x<50$
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what is the definition of a nested function? a cell that is used in two…
a function defined inside of another function
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scientific notation a) a human red blood cell is about 0.000008 meters …
a) $8\times10^{-6}$ b) $9.48\times10^{6}$ c) $0.000705$
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question 30 of 30 how was the political system used by the inca similar…
A. Both civilizations were led by kings with both political and religious authority.
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topic 2: cell physiology & tissues 7 identify whether each method of me…
Passive: Diffusion, Movement down a concentration gradient, Movement of molecules from an area of high concentration to an area of low concentration Active: Movement up a concentr…
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complete each statement explaining the different modes of passive membr…
1. low, high 2. osmotic pressure 3. diffusion 4. semi - permeable
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question 18 of 30 which of the following economic elements best set apa…
A. International trade spread farther than ever before
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7. state 3 ways that carbon can be exchanged through different aspects …
1. Carbon exchange through soil - plant root interactions for nutrient uptake. 2. Carbon release during decomposition of dead organic matter. 3. Carbon release by animals through …
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question 12 of 29 how are the central ideas of hinduism and buddhism al…
D. Both share a belief in reincarnation.
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which of the following questions about the origin of life on earth is m…
C. Was catalytic RNA used by ancient organisms as a stepping stone to acquire protein enzymes?
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chytridiomycosis infection in a frog population proportion of populatio…
B. Infected individuals gradually died out, and genetically resistant individuals became more common. The frog population recovered because of the increased frequency of resistant…
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topic 2: cell physiology & tissues 4 click and drag each label into the…
Plasma Membrane: Made of proteins and lipids, Contains ion channels, Contacts the ECF Cytoplasm: Organelles, ICF, Cytoskeleton (Fibers, tubules)
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topic 2: cell physiology & tissues 3 1.45 points determine from the des…
- Proteins that allow ions to enter and leave the cell: Cell Membrane - The fuzzy coat made of glycolipids and glycoproteins: Cell Membrane - The "powerhouse" of the cell: Cytopla…
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in a genetics experiment on peas, one sample of offspring contained 364…
The probability of getting a green pea is approximately $0.778$. B. Yes, it is reasonably close.
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for following group of questions first study the description of the sit…
D. $\sqrt{0.25}$
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18. all three major types of rna (mrna, trna and rrna) are processed be…
a. pre - RNAs.
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hank is unhappy with some of his work - related responsibilities. for g…
A. Create a routine that alternates where each employee is assigned
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36. the presence of a poly-(a) tail on a rna molecule indicates that a.…
a. there are exons present that must be removed. (This option seems to have a mis - statement as exons are kept in the mature RNA after splicing, but among the given options, it i…
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alopecia is hair loss: a. true b. false a persons hair is tangled, you …
1. a. True 2. a. comb through small sections starting at the hair ends 3. d. All the above 4. a. True 5. a. True 6. a. True 7. a. True 8. a. True 9. a. True 10. a. True 11. a. Tru…
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the genetic predisposition to anxiety disorders can be characterized as…
A. strong to very strong
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30. usually, mrnas containing nonsense mutations are only translated on…
c. nonsense - mediated decay (NMD)
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people with unipolar disorders experience ____; people with bipolar dis…
depression only; alternating periods of depression and mania
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an international plan to eliminate one virus is proposed. the time in y…
$51$
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requirement 1. record each transaction in the journal. key each transac…
| Date | Accounts | Debit | Credit | | ---- | ---- | ---- | ---- | | August 2 | Cash | $69000$ | | | | Common Stock | | $69000$ | | August 3 | Supplies | $500$ | | | | Equipment |…
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question 8 fermentation required glycolysis. a true b false question 9 …
Question 8: A. True Question 9: A. increase sucrose concentration increase fermentation
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question 6 what is the main advantage of aerobic respiration? a it requ…
Question 6: B. It produces a lot more ATP from one glucose molecule Question 7: B. It produces ATP fast in the absence of oxygen
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question 4 which bottle environment is the control? a water in the bott…
Question 4: A. Water in the bottle with no sucrose Question 5: A. It was the control
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assignment content question 1 the sealed water bottle is an ______ envi…
Question 1: B. Anaerobic Question 2: A. Yeast concentration or B. Sucrose concentration (either can be an independent variable depending on the experiment setup)
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28. what is probably responsible for driving the conformational shift t…
B. GTP hydrolysis
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which region is not correctly matched with the person who explored or c…
A. western South America - Ponce de León
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question 14 not yet answer marked out of 1.0 what type of tissue stores…
E. adipose
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marge was continuously getting initial job interviews, but not being as…
A. clarify the problem
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epithelium consists of cells with lots of extracellular material select…
B. False
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select one: a. trachea b. nose c. joints d. external ear e. costal cart…
1. c. joints 2. False
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connective tissue has a basement membrane select one: true false the mo…
False d. external ear
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the three basic elements in connective tissue are: select one or more: …
1. B. ground substance, C. cells, D. fibers 2. True
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ciliated epithelium can be found in the select one: a. esophagus b. sto…
1. c. trachea 2. c. cartilage
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reticular tissue is found in all of the following except: select one: a…
- First question: c. pancreas - Second question: True
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which of the following appears to be a key factor in predicting who is …
The intensity of the traumatic event
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select one: a. trachea b. nose c. joints d. external ear e. costal cart…
1. c. joints 2. False
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connective tissue has a basement membrane select one: true false the mo…
False d. external ear
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question 9 not yet answered marked out of 1.00 flag question the three …
Question 9: b. ground substance, c. cells, d. fibers Question 10: True
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an alternative to the fight - or - flight response that may be present …
tend - and - befriend response
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ciliated epithelium can be found in the select one: a. esophagus b. sto…
1. c. trachea 2. c. cartilage
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reticular tissue is found in all of the following except: select one: a…
a. kidney
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ciliated epitheliums function is to select one: a. transport b. protect…
A. transport
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what is the kind of epithelium found in our blood vessels? why?
The kind of epithelium found in our blood vessels is endothelium. It is a single layer of squamous cells which helps in smooth blood flow and has other physiological functions rel…
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eukaryotic flagella differ from bacterial flagella in that ________. mu…
they are thicker, they are covered by membrane and they contain microtubules
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parasitic worms have a highly developed ______ system. multiple choice …
A. reproductive
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reticular tissue is found in all of the following except. select one: a…
A. kidney, C. pancreas
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multiple select question select all that apply which of the following a…
B. Cholesterol, D. Vitamin D, E. Certain hormones
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questions 1 through 3 refer to the following. the adoption of the mamlu…
D. The Abbasid state was headed by a caliph who was both the state's supreme religious and political leader.
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read this passage. rocky mountain national park, nicknamed ocky,\ is a …
C. There you will find ponderosa pine trees and wide - open mountain meadows, lush with wildflowers in the summer.
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note: to complete this question without using the drag - and - drop fea…
1. Sustainability 2. Temporal Change 3. Climax Community 4. Ecosystem Management 5. Ecological Succession
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in the lab, you will change the number of birds with each beak phenotyp…
All of the above statements (A percentage compares the number of birds in the flock to the total number of birds in all flocks; If the percentage is high, the flock is more succes…
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the model shows the chemical structure of a molecule. this molecule is …
carbohydrate
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the chart describes two different biomolecules and their functions. mol…
Molecule 1 is most likely a nucleic acid, and Molecule 2 is most likely a lipid.
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passage 1 passage 2 this brief essay by author and college professor ch…
It is based on abstract ideas rather than history and experience.
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read the excerpt from the dark game: true spy stories from invisible in…
The US government's skillful use of research and intelligence enabled a vital spy mission.
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complete the table to compare prokaryotic and eukaryotic cells. prokary…
| | Prokaryotic cells | Eukaryotic cells | |--|--|--| | Size | Generally smaller | Generally larger | | Structural complexity | Structurally less complex | Structurally more compl…
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complete the table to describe the organisms shown in the micrographs. …
| Characteristic | Euglena | Bean plant | |--|--|--| | A cell is its basic unit of structure | Yes | Yes | | Made up of one cell | Yes | No | | Essential processes happen in a cel…
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over time, many scientists have carried out experiments to learn about …
All organisms are made up of one or more cells. Cells are the basic unit of structure and function in living things. New cells come from pre - existing cells.
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which of the following statements are true about the organisms shown in…
- Cells contain small structures. - Homo sapiens and Allium cepa are multicellular, while Micrasterias radiosa and Amoeba proteus are unicellular.
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5 select the correct answer from each drop - down menu. james wants to …
James should develop a skill in science. This career falls under the Diagnostic Services pathway under health science.
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match the vocabulary word with the correct definition. note to complete…
gasses surrounding the earth from surface to space - Atmosphere all the bodies of water on the earth - Hydrosphere the surfaces, atmosphere and hydrosphere of the earth which is o…
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unicellular organisms can be prokaryotic or eukaryotic, but all complex…
A cell lives in a boiling hot spring. It uses chemicals like sulfur for energy instead of sunlight or food. Its DNA floats freely inside of its cytoplasm.: Prokaryotic A cell is p…
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analyze the variables involved in using a microscope choose three facto…
- the power of the eyepiece - the amount of light - the procedure for focusing
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t on the laboratory experiment throughout the reflection, make sure you…
Independent variable: Magnification level Dependent variable: Number of cell organelles seen
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the world health organization (who) declared an end to its global healt…
People will let their guard down and not take precautions to prevent the spread of the Zika virus.
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giardia infection is an intestinal infection that causes cramps, nausea…
Enact measures to test city pools more frequently.
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tia is studying the effects of disease on public health. she begins by …
This pathogen spreads through childbirth or close physical contact with an infected person.
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a cholera outbreak has occurred, and the culprit is contaminated drinki…
The unsanitary handling of human waste by nearby waterways. The reduction in accessibility to regions that use filtered bottled water.
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sort these risk factors as controllable or uncontrollable. gender genet…
Controllable Risk Factor: health care, hygiene, nutrition, exercise Uncontrollable Risk Factor: gender, genetics, ethnicity, age
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sort these diseases into their correct infection source. common cold hi…
Bacteria: strep throat, Lyme disease, salmonella Virus: common cold, HIV/AIDS, influenza
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what is the next step after gathering information when making smart foo…
Identify alternative food choices.
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which friend is experiencing an internal barrier to physical fitness? m…
Talia puts in only 50 percent of effort during her workout.
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chen is trying to determine why he usually skips breakfast. he writes t…
My parents rarely eat breakfast.
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sarah decided to drink less juice. she read current dietary guidelines …
identified a goal to drink less juice gathered information about drinking more water There are only two correct options based on the text provided. If three options are required, …
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what is the best way an individual can remove a barrier to a healthy li…
A. Attend a local support group.
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which action can help minimize food safety risks? cleaning under the fi…
cleaning under the fingernails when washing hands
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gavin is cooking a chicken and vegetable meal. what is the next step af…
Use different cutting boards to prepare the meat and vegetables.