To focus a magnifier using the high-energy lens you haveto use the main focus adjustment knob however take care as a result of if youcrank down too hard, you'll be able to harm the magnifier and therefore the slide.
Fine Adjustment Knob - This knob is within the coarse adjustment knob and is employed to bring the specimen into sharp focus underneath low power and is employed for all focusing once using high power lenses.You don't wish to wreck the slide. therefore you ought to forever look on the aspect of the magnifier therefore you do not break it and use fin adjustment knob only.
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Organic compounds all contain the element carbon. Which organic compound used for stored chemical energy contains carbon, hydrogen, oxygen, and often phosphorus?
A. Protein
B. Carbohydrate
C. Lipid
D. Starch
Answer: Lipids
Explanation:
PLEASE HELP 50 POINTS!!!!Which of the following best describes the approximate number of cells in the culture that are in interphase, as well as the consequence of the severe disruption of interphase in mitotic division of cells within a tissue?
A) There are approximately 917 cells in interphase. Disruption of interphase will have no effect on mitosis because they are two completely independent processes.
B)There are approximately 83 cells in interphase. Disruption of interphase will lead to a faster and more efficient mitotic cycle, which will result in increased cell division and tissue growth.
C)There are approximately 917 cells in interphase. Disruption of interphase will trigger the cell to switch to a mitotic phase and repeatedly divide, which will result in the massive proliferation of the cells and heightened tissue growth.
D)There are approximately 83 cells in interphase. Disruption of interphase will result in the cell being unable to synthesize proteins and organelles required to divide, which will result in the cell not passing key checkpoints and ceasing to divide.
Answer:
The correct answer is D, "there are approximately 83 cells in interphase. Disruption of interphase will result in the cell being unable to synthesize proteins and organelles required to divide, which will result in the cell not passing key checkpoints and ceasing to divide."
Hope this helps!
please help I am on a timer.... Also this is 7th grade biology.
Answer:
D
Explanation:
Hope it helps
which of these represents an individual form of life such as an animal, plant, or single-celled life form
Organism represents an individual form of life such as an animal, plant, or single-celled life form. A prokaryote or a eukaryote can be a unicellular organism. Eukaryotic organisms have a membrane-bound cell nucleus as well as extra membrane-bound compartments known as organelles (such as mitochondria in animals and plants and plastids in plants and algae, all generally considered to be derived from endosymbiotic bacteria)
Fungi, mammals, and plants are examples of eukaryotic organism kingdoms. Organisms are classified as producers, consumers, herbivores, carnivores, omnivores, scavengers, parasites, predators, and decomposers. Everything you need to know about the 39 trillion microbes that live in our bodies, according to the human microbiome.
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I'm basically confused about the directions of this slide. Can someone help me?
If I am understanding correctly, the first thing they are asking you to do is match nitrogen bases.
Adenine (A) always pairs with thymine (T), and guanine (G) always pairs with cytosine (C).
Then, whichever are the double strands, cut them out and put them into you notebook. (I am not sure where the notebook is, but I am assuming you know)
Then in the speech bubble next to the picture of Chargaff- talk about his rule.
What does the rule mean?
What does the rule explain?
How is the rule demonstrated?
Lastly, finding percents. What percent of the pairs has Adenine in them?
For example:
If I look at this pairing below
A →T
T→ A
G →C
C→ G
50% of the pairs include Adenine.
Hope I helped! Comment if you have questions about my answer :)
Answer:
If the sequence of nitrogenous bases of a DNA strand is ATCTAGGCCG, the complementary strand would be TAGATCCGGC, with a percentage of guanine 30%, cytosine 30%, adenine 20% and thymine 20%, according to Chargaff's rule.
Explanation:
DNA is made up of sequences of nitrogenous bases, which are adenine (A), guanine (G), thymine (T) and cytosine (C). The bases of one strand are matched with the bases of another, according to the complementarity of nitrogenous bases, where:
Adenine is complemented with Thymine A=T Guanine is complemented with Cytosine G≡CThe image shows a DNA chain whose chain is complementary:
DNA Strand given Complementary Strand
Adenine Thymine
Thymine Adenine
Cytosine Guanine
Thymine Adenine
Adenine Thymine
Guanine Cytosine
Guanine Cytosine
Cytosine Guanine
Cytosine Guanine
Guanine Cytosine
Therefore, in a DNA molecule there is as much adenine as thymine, and an equal amount of cytosine and guanine. In this example there are 4 molecules of adenine, 4 molecules of thymine, 6 guanines and 6 cytosines.
The proportion or percentages of nitrogenous bases can be calculated according to Chargaff's rule.
Chargaff was able to establish that in a DNA molecule the ratio of purine:pyrimidine of 1:1, so there must be the same amount of thymine as adenine and a similar amount of guanine for the cytosine, according to the complementarity of bases.
Taking into account the law of the base pair, if in a DNA chain there is 30% of Adenine, in the molecule there is:
Guanine 30%
Cytosine 30%
Adenine 20%
Thymine 20%
Total ..... 100%
The diagram shows two sound waves as transverse waves. Sound waves are
sometimes drawn as transverse waves to make certain properties easier to
compare.
Wave A
Wave B
1 cm
1 cm
15
www
What can you tell from comparing these waves?
O A. Wave B has a higher pitch.
B. Wave A is louder.
O C. Wave B has a lower pitch,
D. Wave A is softer.
ET
Answer: wave B has a higher pitch
Explanation:
I mean its obvious...
Answer:
A. Wave B has a higher pitch.
Explanation:
I took the quiz apix
Someone plllsss help
Answer:
They will most likely be immune to the treatment.
Explanation:
This is the same as a viruse evolving to survive the vaccine for it.
How do you do this? I need this complete by Monday pls help me
Answer:
First box: Carbohydrates
monomer is monosaccarides single sugar molecules
Elements: C, H, O
examples are glucose and cellulos
Box two: Proteins
Monomer: amino acid
Elements: C, H, O, N, P, S
function: a lot of differnt functions but examples include:
– Enzymes that control the rate of biochemical reactions
– Hormones that regulate cell processes (Ex. Insulin)
– Structurally make up bones and muscles (Ex. Collagen)
– Transport substances in and out of cell (Ex. Hemoglobin)
– Antibodies help immune system fight diseases
– Movement (Ex. Contractile proteins)
– Receptors aid in cell signaling
– Energy source in the food we eat (Ex. Casein)
Examples: meats, nuts, and dairy products, but many are made by your body
Box three: Nucleic Acid
Monomer: Nucleotides
Elements: C, H, O, N, P
function: informational molecules that store, transmit, and express our genetic information; contain the instructions for making proteins
example: DNA and RNA
Box Four: Lipids
Monomer: fatty acids
Elements: C, H, O
Function: Long term energy storage
Examples: fats, oils, phospholipids (in the cell membrane), steroids
Explanation:
Please explain when you have smaller population does evolution happen faster
Answer:
Small populations tend to lose genetic diversity more quickly than large populations due to stochastic sampling error (i.e., genetic drift). This is because some versions of a gene can be lost due to random chance, and this is more likely to occur when populations are small.
Explanation:
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Which phase of the moon is shown? full moon first quarter waning gibbous waxing crescent
Answer:
full
Explanation:
Generally speaking, identify the overall structure
of the cell membrane?
based on a number of considerations, it is hypothesized that at some time in the evolution of life, there must have been a single molecule that could do both cellular work and replicate itself. a possible mo
The correct answer is Ribosomes is the single molecule that could do both cellular work and replicate itself.
Ribosomes have two primary functions: message decoding and peptide bond formation. The ribosomal subunits are made up of two large ribonucleoprotein particles (RNPs) of unequal size. Each subunit is composed of one or more ribosomal RNAs (rRNAs) and a large number of ribosomal proteins (r-proteins). The ribosome is an ancient molecular fossil that can be used to peer into the origins of life. In all living systems, the ribosome, which is composed of RNA and protein, converts mRNA to coded protein. Translation is infused with universality, economy, centrality, and antiquity. Because the ribosome is so important to all aspects of life and reproduction in an organism, rapid change is unlikely to survive. The ribosome components are an excellent resource for studying the evolution of all organisms because all cellular organism have ribosomes .
Based on a number of considerations, it is hypothesized that at some time in the evolution of life, there must have been a single molecule that could do both cellular work and replicate itself. A possible molecule that has been suggested is a catalytic RNA molecule, now called a ?
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mitigating measures for fire
What is the main function of environmental policy?
a.
prevent the use of natural resources
b.
reduce human impact on the environment
c.
prevent nature from having a harmful effect on humans
d.
reduce the use of natural resources
Please select the best answer from the choices provided
A
B
C
D
Answer:
reduce impact on the environment
The main function of environmental policy is to reduce human impact on the environment. So the correct answer is B.
environmental policy is any action taken by a government, business, or other public or private organization to address the impacts of human activity on the environment, particularly those that aim to mitigate or prevent negative effects on ecosystems.
It is our approach to look for consistent improvement all through our business tasks to reduce our effect on the neighborhood and worldwide climate by saving energy, water and other normal assets; reducing the production of waste; repurposing and; minimizing our use of hazardous materials.
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Which one of following is not included in the abiotic cycles?
A)
water
B)
phosphorus
C)
nitrogen cycles
D)
carbon
E)
magnesium
Answer: E. Magnesium
Explanation:
Trust me bro
fernandes a, connors jm, carrier m. anticoagulation for subsegmental pulmonary embolism. n engl j med. 2019;381(12):1171-1174.
A pulmonary (lung) artery obstruction is referred to as an acute pulmonary embolism or embolus.
What can be diagnosis of acute pulmonary embolism?Acute pulmonary embolism (PE) causes 50,000 to 200,000 deaths per year and is a common cause of death. After coronary artery disease and stroke, it is the third most prevalent cause of mortality among cardiovascular diseases. The development of multi-detector computed tomographic pulmonary angiography (CTPA) has increased the rate of diagnosis of PE by enabling improved assessment of PE regarding imaging of the peripheral pulmonary arteries. As a result, more instances of accidental PE and isolated subsegmental PE (SSPE), two types of peripheral PE, have been discovered. Usually, patients with these two disorders have little to no evidence of the traditional PE symptoms, such as hemoptysis or pleuritic discomfort, abrupt dyspnea, or circulatory collapse.
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Which cell structure receives proteins from the endoplasmic reticulum and
temporarily modifies or stores them?
A. Nucleus
B. Golgi apparatus
C. Ribosome
D. Vacuole
1.1.4 Which of the following reagents is used to test for glucose? A. Fehling's solution B. Ethanol C. Benedict's solution D. lodine
Answer:
benedicts solutuin(c)
It is believed that weed killers like 2,4-D and 2,4,5-T may
work by stimulating cell division. Why would the stimulation
of cell division make these chemicals effective weed killers?
Herbicides are a broad category of pesticides that are used to get rid of undesirable plants like weeds and grasses that hinder the development and productivity of desired agricultural crops. Both 2,4-D and 2,4,5T are also known as 2,4-Dichlorophenoxyacetic acid and
Herbicides like 2,4-D and 2,4,5-T are also referred to as auxin-type herbicides or plant growth regulators. Auxins are hormones that affect cell division and elongation in order to control cell growth.Auxins are required by plant cells in the proper concentration for growth and development. If auxin levels are too low, plant growth is not promoted at all, and if levels are too high, plant growth is excessively stimulated. Most grasses are not killed by 2,4-D and 2,4,5 T, but broadleaf weeds are. It moves to the plant's meristems after being absorbed through the leaves. These herbicides affect the tissues' cells, causing them to continually divide and proliferate. The plant finally dies as a result of this unchecked, unsustainable growth, which also causes stem curling and withering of the leaves.Thus, by promoting cell division, these compounds act as herbicides.
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What are the primary processes that increase genetic variability?
A. sexual reproduction and mutations
B. cloning and binary fission
C. asexual reproduction and mitosis
D. budding and recombination
Answer:
A
Explanation:
Question 23 of 25
PLEASE ANSWER!!!!
How can you be certain that a
chemical change has happened?
O A. A new substance is formed.
O B. A substance changes state.
O C. The color of a material changes.
O D. The amount of a material changes.
Which of the following insect development stages is not the same as the other three?
cocoon
caterpillar
grub
maggot
cocoon is the correct answer
Answer:
cocoonExplanation:
A fatty acid with no carbon-carbon double bonds; usually from animal sources and solid at room temperature.
A fatty acid with no carbon-carbon double bonds; usually from animal sources and solid at room temperature is a saturated fatty acid.
What are saturated fatty acids?A saturated fatty acid is a special type of fatty acid composed of a carbon chain that does not exhibit any double bonds, which is well known to reduce fluidity.
In conclusion, a fatty acid with no carbon-carbon double bonds; usually from animal sources and solid at room temperature is a saturated fatty acid.
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monosaccharide profiling of glycoproteins by capillary electrophoresis with contactless conductivity detection
Monosaccharide profiling of glycoproteins by capillary electrophoresis with contactless conductivity detection is saccharides.
What are saccharides?Saccharides form one of the major constituents of the biological macromolecules in living organisms. Many biological processes including the protein folding, stability, immune response and receptor activation are regulated by glycosylation.
In this work, we optimized a capillary electrophoresis method with the capacitively coupled contactless conductivity detection for separation of eight monosaccharides commonly found in glycoproteins, namely D-glucose, D-galactose, D-mannose, N-acetyl-D-glucosamine, N-acetyl-D-galactosamine, D-fucose, N-acetylneuraminic acid, and D-xylose. A highly alkaline solution of 50 mM sodium hydroxide, 22.5 mM disodium phosphate, and 0.2 mM CTAB (pH 12.4) was used as background electrolyte in a 10 µm id capillary. To achieve baseline separation of all the analytes, a counter-directional pressure of –270 kPa was applied during the separation. The limits of the detection of our method were below 7 µg/ml (i.e., 1.5 pg or 1 mg/g protein) and the limits of quantification were below 22 µg/ml (i.e., 5 pg or 3 mg/g protein). As a proof of the concept of our methodology, we performed an analysis of monosaccharides released from fetuin glycoprotein by acid hydrolysis. The results show that, when combined with an appropriate pre-concentration technique, developed method can be used as a monosaccharide profiling tool in glyco-proteomics and complement the routinely used LC-MS/MS analysis.
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Mosquito repellent is sprayed on one arm and the other arm is not sprayed. The number of mosquito bites is counted after 2 hours. what is the control,independent variable, dependent variable of this sentence.
In this experiment the dependent variable is the number of mosquito bites, the independent variable is the type of repellent the control group is the population that is not sprayed.
What is the dependent variable?The dependent variable is those that changes in the experiment, while the independent variable is not modified along the experimental procedure. Moreover, the control group is the sample in which the treatment isn't applied.
In conclusion, in this experiment the dependent variable is the number of mosquito bites, the independent variable is the type of repellent the control group is the population that is not sprayed.
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Which substance is used by plants during photosynthesis?
a. sulfuric acid c. carbon monoxide b. carbon dioxide d. urea
Answer:
i say that the answer is c
Explanation:
Answer:
Carbon dioxide
What do the function and structure of the forelimbs of the 4 animals tell us
about their evolutionary history?
Answer: biomarker: A substance used as an indicator of a biological state, most commonly disease.
trace fossil: A type of fossil reflecting the reworking of sediments and hard substrates by organisms including structures like burrows, trails, and impressions.
fossil record: All discovered and undiscovered fossils and their placement in rock formations and sedimentary layers.
strata: Layers of sedimentary rock.
fossiliferous: Containing fossils.
Explanation: hope this is what you mean if not ill try again
What kind of bonds are found between carbon atoms of the fatty acid tails in saturated lipids?
Pls help me
Please help thank you :)
Answer:
i think it is a
Explanation:
What type of mutation is the following: ATCGAC to TTCGAC
a)point
b)insertion
c) deletion
Answer:
c) deletion is the type of mutation in the following