A mouse runs 2 metres in 4 seconds. What is its speed?
Answer:
0.5 m/s
Explanation:
V = m / t = 2 / 4 = 0.5 m/s
Which of the following best describes The change in the percent of penicillin-resistant S. Aureus bacteria since 1940
According to the information provided in the graph it can be inferred that the percent of resistant S. aureus doubled from 1950 to 1960.
The graph shows the evolution of the resistance of the Streptococcus aureus bacteria to penicillin from 1940 to 2010. The percentage of resistance evolved as follows:
1940 - 0% 1950 - 40% 1960 - 80% 1970 - 83% 1980 - 88% 1990 - 90% 2000 - 97% 2010 - 100%
According to this information, it can be inferred that the correct answer is option B because the percentage of resistance of S. aureus doubled from 1950 (40%) to 1960 (80%). Additionally, the other options are not because:
A. Between 1980 and 2010, resistance growth was lower than in previous years. C. Resistance peaked in 2010 (100%). D. Loading capacity was reached in 2010.
Note: This question is incomplete because the graph, options and some information is missing. Here is the missing information:
Pneumonia is a lung infection that can be caused by a species of bacteria, Streptococcus aureus. The antibiotic penicillin has been used historically to treat bacterial pneumonia. In recent years, doctors have observed that penicillin is less effective as treatment for pneumonia.
Doctors collected data about the percent of S. aureus bacteria that were resistant to penicillin. The graph shows the percent of penicillin-resistant S. aureus from 1940 to 2010 in one hospital.
A. The percent of resistant S. aureus grew exponentially from 1980 to 2010.
B. The percent of resistant S. aureus doubled from 1950 to 1960.
C. The percent of resistant S. aureus reached its peak in 1960.
D. The S. aureus population reached its carrying capacity by 1990.
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How a psychologist would explain purely practical
A cylinder with a movable piston contains a sample of gas having a volume of 6.0 liters at 293 K and 1.0 atmosphere. What is the volume of the sample after the gas is heated to 303 K, while the pressure is held at 1.0 atm? *
0 points
9.0 L
6.2 L
5.8 L
4.0 L
Answer:
(1) 9.0 L (3) 5.8 L
(2) 6.2 L (4) 4.0 L
None
Explanation:
A cylinder with a movable piston contains a sample of gas having a volume of 6.0 liters at 293 K and 1.0 atmosphere, the volume of the gas sample is approximately 6.2 L. The correct option is B.
What is combined gas law?The combined gas law is a gas law that combines Charles's law, Boyle's law, and Gay-Lussac's law. It relates the pressure, volume, and temperature of a gas in a closed system.
Using the combined gas law:
(P1 × V1)/T1 = (P2 × V2)/T2
where P = pressure, V = volume, and T = temperature.
Given:
P1 = P2 = 1.0 atm
V1 = 6.0 L
T1 = 293 K
T2 = 303 K
Solving for V2:
(1.0 atm × 6.0 L) / 293 K = (1.0 atm × V2) / 303 K
V2 = (1.0 atm × 6.0 L × 303 K) / (293 K × 1.0 atm) ≈ 6.2 L
Therefore, the volume of the gas sample is approximately 6.2 L after heating to 303 K while maintaining a pressure of 1.0 atm. The answer is option (B) 6.2 L.
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Describe a method you could use to show that the nut contains fat?
Answer:
answer below
Explanation:
Test if a food item contains fat.
Take a small quantity of the food item to be tested.Wrap the food item in a piece of paper and crush it.Straighten the paper.Dry the paper by keeping it in sunlight for a while.Observe the paper.An oily patch on the paper indicates the presence of fats in the tested food item.Answer:
Take a groundnut and A4 sheet of paper and keep groundnut in the paper and crust open the paper and see the oily patch will be there which shows presence of fat in groundnut.
The protein _________ has been implicated in regulating the shape of some bacterial cells; it is expressed in rod-shaped and helical bacteria. It resembles __________in structure. CreS, actin MreB, tubulin ParM, keratin CreS, tubulin MreB, actin
Answer:
The protein MreB, has been implicated in regulating the shape of some bacterial cells; it is expressed in rod-shaped and helical bacteria. It resembles actin in structure.
What is the difference between the initial, or starting, position and the final position?
Which two generalizations can be made based on what you know about cycles of matter in a closed system?
A. New matter is added, and old matter is destroyed.
B. Matter changes its physical form, allowing it to return to its original state.
C. The amount of matter within the system remains the same.
D. Matter and energy can cross the boundaries of the system.
E. The cycle has a well-defined starting and stonninn noint
Answer:
C. The amount of matter within the system remains the same.
E. The cycle has a well-defined starting and stonninn point
Explanation:
8. Identify THREE structures found in plant cells but not in animal cells
Answer: cell wall, chloroplasts, plastids, and a central vacuole
Explanation:
Answer:
Vacuole
cell wall
chloroplast : photosynthesis
4. If there is lot of water in the cooling magma what is the texture? Where might this happen?
Answer:
glassy texture
Explanation:
How does the body deal with amino acids?
Answer:
Amino acids are transported to the liver during digestion and most of the body's protein is synthesised here. If protein is in excess, amino acids can be converted into fat and stored in fat depots, or if required, made into glucose for energy by gluconeogenesis which has already been mentioned.
Explanation:
Answer:
Amino acids are transported to the liver during digestion and most of the body's protein is synthesised here. If protein is in excess, amino acids can be converted into fat and stored in fat depots, or if required, made into glucose for energy by gluconeogenesis which has already been mentioned.
Explanation:
Through which of the following room-temperature substances would sound travel the slowest?
water
rubbing alcohol
oxygen
glass
Answer:
Oxygen!
Explanation:
Hope this helps have a blessed and great day/ night!! <33
Answer:
Oxygen
Explanation:
Everyone answered oxygen.
After transcription and translation, does the mutation that was in the DNA change the amino acid that the second codon specifies?
Given what we know about genetic mutation, we can confirm that unless the mutation is of the silent type (and sometimes regardless of this), it will in fact change the amino acid that the codon specifies.
Mutations are changes in the DNA sequence of a cell that occur during the replication phase. Cellular mutations can be of many types, such as:
Insertion DeletionSubstitutionInversionand so on, each of which can have varying effects on the amino acid produced.
Most mutations will affect the resulting amino acid in some way. Insertion and deletion tend to be the most harmful mutation types as they alter the way in which the genetic code is processed. Some mutations, however, can be silent, meaning they have no harmful effects due to the fact that the new sequence either encodes the same amino acid or one with a similar enough function. This is possible through mutations like substitution.
Substitution mutations change one nucleotide in a sequence for another. At times, the new sequence will actually encode for the same amino acid as before despite the change. This is one of the only situations in which the amino acid will not be changed. Most often, if a mutation occurs, we can expect the resulting amino acid to change.
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Based on your experimental results, categorize each microbe as preferring isotonic environments, being halotolerant, or as a halophile.
The microbes present in the experiment were:
S. cerevisiae
S. epidermis
A way of categorizing microbes is according to the environment that they need to live in. In other words, we can classify them as isotonic, halotolerant and halophile.
If we put these two microbes in solutions of increasing concentrations, 1%, 7% and 15%, we will see that:
S. cerevisiae only grows when it is in a 1% solution.S. epidermis only grows when it is in a 1% and 7% solution.
In conclusion, S.cerevisiae prefers an isotonic environment. S. epidermis is halotolerant since it can grow in a more hypertonic environment. As none of them grows in a highly hypertonic solution, neither of them are halophile.
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Steppes are areas of tall grasses and scattered shrubs and trees.
True
False
Answer:
False
Explanation:
Please help me answer this I can´t remember the answer and can´t find the lesson
Answer
Neap Tide
Explanation:
I would say Neap tide because when the sun and moon are lined up a neap tide usually occurs.
The weaker the stimulus received by the neuron,
A. the stronger the action potential
B. the weaker the action potential
C. the stronger the local potential
D. the weaker the local potential
The weaker the stimulus received by the neuron,the weaker the action potential. That is option B.
What is action potential?Action potential is defined as the signals generated by neurons which is an electrical activity caused by a depolarising current in the neuron.
Practically, the greater the strength of a stimulus, the greater the number of action potentials generated in a nerve cell.
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GIVING BRAINLY! A 20 pound barbell is brought from earth to the International Space Station(ISS). How does this trip affect the
gravitational force between the two ends of the barbell? Assume the distance between the barbell end masses does not change.
A) The gravitational force between the ends remains the same.
B) The gravitational force between the ends increases.
The gravitational force between the ends decreases.
D) The gravitational force between them doubles.
E) The gravitational force
between them decreases by one half.
Answer:
...
Explanation:..
Answer: B
Explanation: The International Space Station ISS (assume that the weight of the ISS, if it were on the surface of the earth, is approximately 990,000 pounds) orbits the earth at an altitude of approximately 250 miles above the surface of the earth. Assuming a circular orbit, what is the attractive force that the earth exerts to keep it in orbit? An object's mass does not change from place to place, but an object's weight does change because the gravitational acceleration ge depends on the square of the distance from the center of the Earth. Let's do a calculation and determine the weight of the Space Shuttle in low Earth orbit. On the ground, the orbiter weighs about 250,000 pounds.
5. Explain why water is important in the cell.
Include a description of the ways osmosis can
affect a cell.
why would you not be able to prove that an atomic bomb was dropped on Hiroshima using the scientific method
Answer:
The answer is most likely D.You would not be able to prove that an atomic bomb was dropped on Hiroshima using the scientific method Because it is a historical event. You would not be able to prove that an atomic bomb was dropped on Hiroshima using the scientific method Because it is a historical event
Explanation:
please help!!!!
¡¡¡¡★✰✯Ill give brainliest✯✰★!!!!
which one exactly do you need help with?
Bacteria differ from virsues in that bacteria
this is for Forensics
What is the difference between sand, silt, and clay?
Answer:
One of the major differences between the three are the diameters and how they feel.
Sand :2.00 to 0.05 mm in diameter, and rough
Slit: 0.05 to 0.002mm, somewhat soft (comparable to flour)
Clay: Smaller than 0.002mm, very fine
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Have a great day!
INSTRUCTIONS: 1. Prepare the materials needed 2. Think of a slogan managing fatigue levels. 3. The slogan may be express using local dialect (Filipino). 5. Submit your output when you return your envelope. EVALUATION: Your work will be evaluated by your teacher using the following criteria: 1. Relevance 60% 2. Rhyme 20% 3. Presentation 10% 4. Neatness 10 %
Answer:
ikaw po ang gagawa nyan salamat
What about the mitochondria and
chloroplast is unlike any other
organelle?
Answer:
, mitochondria appear to originate only from other mitochondria. They contain their own DNA, which is circular as is true with bacteria, along with their own transcriptional and translational machinery.
Explanation:
The fact that mitochondria and chloroplasts have their own DNA and can replicate independently is what sets them apart from other organisms.
In human cells, mitochondria are in charge of cellular respiration, while chloroplasts are in charge of photosynthesis in plant cells. The endosymbiotic theory, which argues that these organelles are derived from ancient prokaryotic creatures that had a symbiotic relationship with early eukaryotic cells, is supported by the fact that they share a circular DNA structure with bacteria. Chloroplasts and mitochondria are distinctive and important to the energy dynamics and metabolism of eukaryotic cells because they maintain some autonomy, unlike other organelles that depend on the cell's nucleus for their operation.
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This is for forensics:
How is sand classified?
Answer:
Based on the grain size of the particle, sand is classified as Fine Sand(0.075 to 0.425mm), Medium Sand(0.425 to 2mm), and Coarse Sand(2.0 mm to 4.75mm) Based on origin, sand is classified as Pit sand, River sand, Sea sand, and manufactured sand.
Explanation:
PLZ GIVE ME BRAINLIEST :)
Answer:
Sand grains are classified as young, or immature, and old, or mature
Explanation:
Which set of facts is true for vaccines?
They produce active immunity.
They are mostly targeted against bacteria.
They produce active immunity.
They are mostly targeted against viruses.
о
They produce passive immunity.
They are mostly targeted against bacteria.
O
They produce passive immunity.
They are mostly targeted against viruses.
Explanation:
passive immunity, 4 viruses...
Over time, if drought conditions occur, what could happen to the number of birds with the spoon beaks in the population?
(a) increase
(b) decrease
(c) remain the same
HELP PLSSS(100 POINTS!)
Two descriptions about physical quantities are given below:
Quantity A: It is a force.
Quantity B: It changes when the object travels from Earth to Earth's moon.
What quantities are these most likely describing? (4 points)
A. Both Quantity A and Quantity B are mass.
B. Both Quantity A and Quantity B are weight.
C. Quantity A is weight and Quantity B is mass.
D. Quantity A is mass and Quantity B is weight.
Answer:
I would base my answer on the choices. There are only two parameters mentioned: mass and weight. Mass is constant regardless of the the location. So, definitely it is neither Quantity B nor Quantity A. Weight, on the other hand, is a consequence of gravitational force. Since gravity is different in the moon and the Earth, weight varies. Thus, the answer is B.
What is a way of describing of stratus clouds
Answer:
Stratus clouds are low-level clouds characterized by horizontal layering with a uniform base, as opposed to convective or cumuliform clouds
Answer:
stratus clouds are low-level clouds characterized by horizontal layering with a uniform base, as opposed to convective or cumuli form clouds that are formed by rising thermals
Explanation:
Species: Fractus ; Nebulosus
Abbreviation: st
Classification: Family C(Low-level)
Genus: Stratus (layered)
