Answer: Positive:
1. Keep humans alive
2. Adequate food
Negative:
1. pollution
2. over population
Explanation:
Select the correct answer.
Susan wants to bring out as much tone and shading in her prints as possible. Which type of paper should she use?
OA. high contrast
OB. low contrast
OC. fixed contrast
O D. variable contrast
Reset
Next
Susan should use option B: low contrast papers if she wants to bring out as much tone and shading in her prints as possible.
Use a low contrast paper if Susan wants to highlight as much tone and shading in her prints as possible. A low contrast paper will have a greater tonal range, allowing it to display more subtle color and shade variations. This is perfect for printing pictures with a lot of subtlety and detail, such grayscale or black and white photos.
Images with strong, stark contrasts between light and dark areas work best on high contrast paper. Variable contrast paper enables the photographer to alter the contrast of the paper using filters or other techniques, as opposed to fixed contrast paper, which is intended to provide a consistent amount of contrast.
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Correct question:
Select the correct answer.
Susan wants to bring out as much tone and shading in her prints as possible. Which type of paper should she use?
A. high contrast
B. low contrast
C. fixed contrast
D. variable contrast
Richard knows he's a take-charge kind of person. He is a good student, and knows it is because of his hard work. What type of attribution is he using, and why do you think this is?
Richard is using an internal attribution, as he attributes his success to his own abilities and efforts rather than external factors.
Attribution theory refers to the process by which individuals explain the causes of events and behaviors, including their own. Internal attribution refers to the explanation of behavior in terms of an individual's own abilities, traits, or efforts, while external attribution refers to the explanation of behavior in terms of situational or environmental factors. In the case of Richard, he is using an internal attribution by attributing his success as a good student to his own hard work and abilities, rather than to external factors such as luck or help from others.
This suggests that Richard has a strong sense of control and agency over his own life and achievements, and believes that he can influence the outcomes of his own actions through his efforts and skills. This type of attribution can be empowering and motivating, as it reinforces a sense of personal responsibility and ownership over one's life outcomes.
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The image below shows villi within a fold in the lining of the small intestine.
An illustration depicts a series of villi in a fold in the lining of the intestine.
What is the function of folds and villi?
A.
trapping food particles that flow through the small intestines
B.
increasing surface area to improve nutrient absorption between the digestive and circulatory systems
C.
allowing particles in the small intestines to flow from the jejunum to the ileum
D.
expanding volume to increase gas exchange from the respiratory system to the digestive system
The function of the folds and villi in the lining of the small intestine is to increase surface area to improve nutrient absorption between the digestive and circulatory systems.
Therefore, Option b is correct
What is described as the circulatory systems?The circulatory systems is described as the system that contains the heart and the blood vessels and moves blood throughout the body and helps tissues get enough oxygen and nutrients, and it helps them get rid of waste products.
The circulatory system consists of four major components:
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What data did the tests on the purfied substance produce? How did this data further support the hypothesis that DNA is the transforming factor?
Answer:
The tests on the purified substance revealed that it contained high levels of phosphorus and very little sulfur. This finding was significant because DNA contains high levels of phosphorus but very little sulfur, while proteins contain high levels of sulfur but very little phosphorus. This data further supported the hypothesis that DNA was the transforming factor, as it suggested that the substance being studied was DNA rather than a protein. This was because the levels of phosphorus found in the purified substance were consistent with what would be expected from DNA, while the levels of sulfur were not consistent with what would be expected from a protein. Therefore, the data from the tests on the purified substance provided strong evidence that DNA was the transforming factor.
Which cognitive expert's theory does the scenario describe? Ashlyn has a dog in her house, but she has never seen a cat. When she visits a friend who has a cat, she notices the animal's fur and four legs and thinks it is a dog. Once learning the animal is a cat, she notes the differences and tells her parents about the new animal she met.
Responses
Lev Vygotsky's cultural-history psychology framework
Lev Vygotsky's cultural-history psychology framework
Jean Piaget's schemata theory
Jean Piaget's schemata theory
Erik Erikson's psychosocial stages
Erik Erikson's psychosocial stages
Lev Vygotsky's pivots theory
Lev Vygotsky's pivots theory
The cognitive expert theory that describes Ashlyn's scenario is the Jean Piaget's schemata theory.
What is the Jean Piaget's schemata theory?
The schema referred to by Jean Piaget is a type of cognitive organization that implies an assimilation as in Ashlyn's example in which since she had a dog with fur and four legs, the other animal, having fur and four legs, would also be a dog but It's not like that, it's a cat.
This type of assimilation is a type of simplified image of a certain scheme which is assimilated without seeing more details than certain simple. The scheme then represents the repetition of an action or image.
Therefore, we can confirm that the correct answer is Jean Piaget's schemata theory, option B.
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Answer:
B. Jean Piaget's schemata theory
Explanation:
Jean Piaget believes that people use schemata to organize and interpret information as they have different experiences throughout life. Children incorporate or form new schemata as they have new experiences to correlate them with, such as seeing a cat for the first time.
The long term solution to a problem with blood pressure (MAP too high or too low) involves a long term change in:
a.) total peripheral resistance
b.) heart rate
c.) fluid volume
d.) sympathetic activation
The long term solution to a problem with blood pressure (MAP too high or too low) involves a long term change in total peripheral resistance.
Hence option a is correct.
Total peripheral resistance (TPR), also referred to as systemic vascular resistance (SVR), is the amount of pressure that the body's vasculature places on the blood in circulation.
The ratio of the MAP calculated using ModelFlow divided by the CO value is used to calculate total peripheral resistance (TPR). TPRest was calculated as the product of cardiac output in litres per minute (L/min) and mean arterial pressure in millimetres of mercury (mmHg).
The blood and the vessels in the body work according to the same principle. This is referred to as "total peripheral resistance" (TPR) in the context of the heart. Pressure will rise if the space available for blood to pass through is less.
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when heat is transferred through gases?
Maggie places cells of Elodea, a freshwater plant, on a wet-mount microscope slide. She uses a saltwater solution to prepare the slide. When she observes the cells under the microscope, what is she most likely to see?
A.
The cell walls have dissolved, releasing the cell.
B.
The cells have remained unchanged.
C.
The cells will swollen, expanding the cell walls.
D.
The cells have shrunk within the cell walls.
When Maggie places the cells under the microscope, she is most likely to see D. The cells have shrunk within the cell walls.
Why would the cells have shrunken ?If Maggie places cells of Elodea, a freshwater plant, on a wet-mount microscope slide, and then uses a saltwater solution to prepare the slide, she is most likely to see the cells have shrunk within the cell walls when she observes them under the microscope.
When cells are placed in a hypertonic solution (such as saltwater), water moves out of the cells by osmosis, resulting in the cells losing water and shrinking. In the case of Elodea cells, the cells will shrink within the cell walls.
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The physician has ordered a “crit”. What is your process for drawing the blood sample?
Answer:
Explanation:
The term "crit" typically refers to a hematocrit test, which measures the percentage of red blood cells in a sample of blood. Here are the general steps for drawing a blood sample for a hematocrit test:
Gather supplies: You will need a needle, a syringe, a tourniquet, alcohol swabs, and a collection tube with a purple top (which contains an anticoagulant).
Verify patient information: Check the patient's identification and ensure that you have the correct patient information, such as name, date of birth, and medical record number.
Prepare the patient: Explain the procedure to the patient and ask for their consent. Position the patient's arm comfortably and apply a tourniquet above the area where you plan to insert the needle.
Clean the site: Clean the site with an alcohol swab and allow it to air dry.
Insert the needle: Hold the needle at a 15 to 30-degree angle and insert it into the vein. Once you see blood in the syringe, pull back the plunger to draw the appropriate amount of blood (usually 1-2 mL).
Remove the needle: Release the tourniquet and remove the needle from the patient's arm. Apply pressure to the site with a cotton ball or gauze until the bleeding stops.
Collect the sample: Transfer the blood from the syringe to the purple-top collection tube and mix it by gently inverting the tube several times.
Label the sample: Label the collection tube with the patient's information, the date and time of collection, and your initials.
Transport the sample: Place the collection tube in a biohazard bag and transport it to the laboratory for analysis.
It is important to follow proper infection control practices throughout the procedure, such as wearing gloves and properly disposing of sharps and contaminated materials.
PLS MARK ME BRAINLIEST
1. What gametes would be produced by individuals of the following genotypes
(2pts)?
bbFf
Bbff
BbFf
AaDd
To determine the gametes that would be produced by individuals of the given genotypes, we need to use the principles of Mendelian genetics.
Mendel's law of segregation states that each individual has two alleles for a given trait and that these alleles separate during the formation of gametes, such that each gamete carries only one allele.
Using this principle, we can determine the gametes produced by individuals of the given genotypes as follows:
bbFf: This individual has the alleles b and F on one chromosome, and b and f on the other chromosome. The gametes produced by this individual would be bf and bF.
Bbff: This individual has the alleles B and f on one chromosome and b and f on the other chromosome. The gametes produced by this individual would be bf and Bf.
BbFf: This individual has the alleles B and F on one chromosome and b and f on the other chromosome. The gametes produced by this individual would be BF, Bf, bF, and bf.
AaDd: This individual has the alleles A and a on one chromosome, and D and d on the other chromosome. The gametes produced by this individual would be AD, Ad, aD, and ad.
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How are the functions of the smooth and rough ER differentiated?
Explanation:
The rough ER, studded with millions of membrane bound ribosomes, is involved with the production, folding, quality control and despatch of some proteins. Smooth ER is largely associated with lipid (fat) manufacture and metabolism and steroid production hormone production. It also has a detoxification function.
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A 0.21 kg book sits on a library shelf 1.5 m above the floor how much kinetic energy does it have
The book has a potential energy of 3.09 Joules due to its position above the floor
To solve this problem
It has no kinetic energy. But because it is above the ground, it has potential energy. The following formula determines an object's potential energy (PE) as a result of its location in relation to a reference point:
PE = mgh
Where
m is the mass of the object g is the acceleration due to gravity (9.81 m/s^2 near the surface of the earth) h is the height of the object above the reference pointIn this instance, the book weighs 0.21 kg, is 1.5 m above the ground, and has a g of 9.81 m/s2. When these values are added to the formula, we obtain:
PE = (0.21 kg) x (9.81 m/s^2) x (1.5 m) = 3.09 J
Therefore, the book has a potential energy of 3.09 Joules due to its position above the floor.
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Which of the following results in excess nitrogen in the oceans?
The results of excess nitrogen in the oceans is industrialization and increased use of fertilizers, the correct answer is (b).
This is because fertilizers used in agricultural and industrial practices are high in nitrogen compounds, which can runoff into nearby water bodies and eventually make their way into the ocean.
This excess nitrogen can cause a process called eutrophication, in which an excess of nutrients in the water leads to an overgrowth of algae and other aquatic plants. When these plants die, bacteria consume them and consume a lot of oxygen in the process, which can lead to oxygen depletion in the water and harm marine life, the correct answer is (b).
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The complete question is:
Which of the following results in excess nitrogen in the oceans?
a) Overfishing of marine organisms
b) Industrialization and increased use of fertilizers
c) Decreased atmospheric carbon dioxide levels
d) Decreased use of nitrogen-based fertilizers
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Look at the Punnett square above. Mom and dad are both heterozygous - which means they both have 1 dominant gene and 1 recessive gene.
What is the phenotype ratio (physical trait) for their offspring?
The phenotype ratio for the offspring of heterozygous parents are 3:1.
What is phenotype ratio?Phenotype ratio is a ratio that describes the relative number of individuals in a population that display a particular observable trait or phenotype. In genetics, phenotype ratio is often used to describe the outcomes of genetic crosses or experiments.
For example, in a simple dominant-recessive inheritance pattern, a cross between two heterozygous individuals (Aa x Aa) will result in a 3:1 phenotype ratio, with three individuals showing the dominant trait (AA or Aa) and one individual showing the recessive trait (aa). Phenotype ratios can vary depending on the genetic traits involved and the environmental factors that affect their expression.
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what would happen if cells stop to respire?
Explanation:
the electrons flow throw it
What is phloem?
What does it phloem carry?
Explain the function of sieve tubes and their association with companion cells.
What is translocation?
Explain how pressure and water potential aid translocation.
How can aphid stylets be used to measure phloem transport rates?
How can radioactively-labeled CO2 be used to measure phloem transport rates?
Answer:
Explanation:
Phloem is a specialized tissue in vascular plants that is responsible for the transport of organic compounds, such as sugars, amino acids, and hormones, from the leaves to other parts of the plant.
Phloem carries organic nutrients and hormones, produced by photosynthesis or other metabolic processes, from the leaves to the other parts of the plant, such as roots, stems, and flowers.
Sieve tubes are specialized cells found in phloem tissue that form a series of connected tubes for transporting nutrients throughout the plant. Companion cells are specialized cells that are adjacent to sieve tubes and provide them with metabolic support.
Translocation is the process by which organic compounds are transported through the phloem from the source to the sink. The source is typically the leaf, where sugars and other organic compounds are produced, while the sink is any other part of the plant where the compounds are used or stored, such as roots, stems, or flowers.
Translocation is facilitated by pressure and water potential gradients created by the active transport of sugars and other organic compounds from the source to the sink. As sugars are actively transported into the phloem, water follows by osmosis, creating a pressure gradient that moves the organic compounds toward the sink.
Aphid stylets can be used to measure phloem transport rates by inserting them into the phloem tissue and measuring the flow rate of the sap. This technique is commonly used in plant physiology research.
Radioactively-labelled CO2 can be used to measure phloem transport rates by exposing the source leaf to radioactively-labelled CO2 and then measuring the accumulation of the radioactive compounds in the sink tissue. This technique is used to track the movement of specific compounds through the phloem and to determine the rate of translocation.
PLS MARK ME BTRAINLIEST
Find every angle of rotation that maps the figure onto itself.
Answer: Assuming the rectangle is not a square, a rotation of 180º, -180º, 360º, -360º will rotate the rectangle back onto itself.
If you want to consider angles beyond 360º, any rotation of k(180º) where k is an integer will work.
If you are looking at that special case of rectangle known as a square, any rotation of k(90º), where k is an integer will do the trick.
Explanation:
Question Which of the following is not a cardinal sign of Parkinson's disease?
Essential tremor is not a cardinal sign of Parkinson's disease.
Option D is correct.
What is Parkinson's disease?Parkinson's disease is a disorder affecting the brain that results in unintentional or uncontrollable movements like trembling, stiffness, and issues with balance and coordination.
Early signs of Parkinson's disease include tremors, muscle stiffness, and sluggishness of movement, but there are also other symptoms to watch out for.
Essential tremor is not associated with other Parkinson's disease symptoms.
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Complete question:
Which of the following is not a cardinal sign of Parkinson's disease?
Stiffness
Difficulty moving
Shaking hands and feet
Essential tremor.
please help fast (earth science)
The sedimentary bedrock in both regions originally formed as (1) horizontal layers
It should be noted that layer A is the oldest and layer D is the youngest.
The recently formed rock is siltstone.
How to explain the rocksWe can utilize the principle of superposition to determine the comparative ages of configurations in the strata. This rule affirms that, for a sequence of untouched sedimentary rock layers, the most ancient layer shall be situated at the lowest point and the youngest layer present itself at the highest.
Perusing the diagram, we can glean that layer A is arranged at the base while layer D lies at the peak with layers B and C between them. Ergo, layer A is the oldest and layer D possesses the distinction of being the youngest, making the answer (1) A.
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Based on the cell theory, which of the following is true?
Large organisms have fewer cells than small organisms.
Small organisms have smaller cells than large organisms.
All living things are made of more than one cell.
New cells are produced from old cells
Answer:
New cells are produced from old cells
Explanation:
According to cell theory, which is a scientific theory first formulated in the mid-nineteenth century, organisms are made up of cells, they are the basic structural/organizational unit of all organisms, and all cells come from pre-existing cells¹. So, out of the options you provided, the statement that is true according to cell theory is: "New cells are produced from old cells."
Source: Conversation with Bing, 4/27/2023
(1) Cell theory - Wikipedia. https://en.wikipedia.org/wiki/Cell_theory.
(2) Cell theory | Definition, History, Importance, Scientists, First .... https://www.britannica.com/science/cell-theory.
(3) Cell Theory - National Geographic Society. https://www.nationalgeographic.org/encyclopedia/cell-theory/.
Describe the roles played by stomata and guard cells. What would happen to a plant if these cells did not function correctly?
Answer:
Stomata allow gases to enter and exit the plant. Guard cells regulate the opening and closing of stomata. If these cells did not function correctly, a plant could not get the carbon dioxide needed for photosynthesis, nor could it release the oxygen produced by photosynthesis.
Explanation:
Complete the sentence. Green revolution agriculture uses genetically modified crops that are blank productive and blank resistant to pests
O Less, less
O Less, more
O More, less
O more, more
The complete sentence is Green revolution agriculture uses genetically modified crops that are more productive and more resistant to pests which is option D.
Complete sentence explained.
A complete sentence is a sentence that contains a subject and a predicate and expresses a complete thought. It typically includes a noun or pronoun as the subject, a verb as the predicate, and often includes objects, complements, and modifiers that provide additional information or description. A complete sentence can stand on its own and does not require additional information to make sense.
The sentence means that Green revolution agriculture, which is a type of modern agriculture, uses genetically modified crops that have been engineered to be more productive, meaning they can produce more food per unit of land or resources, and more resistant to pests, meaning they are less likely to be damaged or destroyed by insects or other pests
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Question 3 (5 points)
Tommy comes home from a long day at school and opens his laptop to unwind. He
looks at his best friend Jack's social media profile and sees both negative and
positive pieces of Jack's digital reputation. From Jack's profile, which post is an
example of Jack's positive digital reputation?
A picture of Jack that shows him pouring alcohol for a friend
O A comment that says, "Congratulations, Bill, on getting the award. You deserve
it!"
A comment about last night's game that includes inappropriate language
A music video for a recent rap song with inappropriate words and images
An example of Jack's positive digital reputation from his profile is a comment that says, "Congratulations, Bill, on getting the award. You deserve it!" (option B).
What is digital reputation?Digital reputation is the digital footprint created by all the things you say and do online, as well as what others post about you.
The people and sites one follows, the content one posts, likes or shares, and the comments one makes, all contribute to ones digital reputation.
According to this question, Tommy looks at his best friend, Jack's social media profile and sees both negative and positive pieces of Jack's digital reputation. The positive digital reputation is as mentioned above.
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3. How can individuals make more sustainable food choices to benefit the environment, animals, and society? Give three examples.
Answer:
A sustainable diet consists mainly of vegetables, legumes, whole grains, certain nuts, and fruits. It avoids most processed foods such as sugar and refined grains. Eating sustainably can include meat and fish that are grown and harvested in environmentally conscious ways.
Explanation:
Converter - 10 °F 0°C
0 degrees Celsius is equivalent to 32 degrees Fahrenheit.
How to solveTo convert 10 degrees Fahrenheit to Celsius, you can use the formula:
Celsius = (Fahrenheit - 32) / 1.8
Plugging in the value of 10 degrees Fahrenheit, we get:
Celsius = (10 - 32) / 1.8
Celsius = -22 / 1.8
Celsius ≈ -12.22
Therefore, 10 degrees Fahrenheit is equivalent to approximately -12.22 degrees Celsius.
On the other hand, 0 degrees Celsius is equivalent to 32 degrees Fahrenheit. This can be determined by using the formula:
Fahrenheit = (Celsius * 1.8) + 32
Plugging in the value of 0 degrees Celsius, we get:
Fahrenheit = (0 * 1.8) + 32
Fahrenheit = 32
Therefore, 0 degrees Celsius is equivalent to 32 degrees Fahrenheit.
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If you think of a cell as a factory that makes proteins and ships them out, which function would vesicles perform?
Answer:
Vesicles would be the package (box,sack,polybag,etc) within which to put your proteins
Name one type of plant cell that has holes in it to allow substances to flow through.
What needs to be true about the positions of the Sun, the Moon, and Earth in order for us to see the full Moon lit up?
Answer:
For us to see the full Moon lit up, the positions of the Sun, the Moon, and Earth must be in a specific alignment known as the "syzygy." This occurs when the Earth is located between the Sun and the Moon, with the Moon on the opposite side of the Earth from the Sun.
During this alignment, the Sun's light shines directly onto the entire face of the Moon that is visible from Earth, illuminating it fully and making it appear as a bright, circular disk. This is because the Moon does not produce its own light but reflects the Sun's light back to us on Earth.
It's important to note that the full Moon is visible from Earth for only one night, but it can appear almost full for several nights before and after the actual full Moon due to the angles between the Sun, the Moon, and the Earth changing over time.
Explanation:
The following is an illustration of a hypothetical immunoglobulin (IG) light chain genomic locus:
-----V 1 ---V 2 ---V 3 ---V 4 ---V 5 ---J1 ---J2 ---J3 ---J4 ---C----------
(V: Variable segment, J: Joining segment, C: Constant segment. Note: The letters represent exons, and the dashes represent introns & intergenic regions)
If the desired immunoglobulin light chain mRNA is V 2 J2 C what is the DNA sequence of the light chain locus after somatic recombination? Draw the sequence using the above illustration as the reference
The illustration as the reference is V1 ---[V2]---V3---V4---V5---[J1]---[J2]---J3---J4---C.
To generate the desired immunoglobulin light chain mRNA (V 2 J2 C), the V2 segment and the J2 segment must be brought together by somatic recombination, which involves the deletion of the intervening intronic sequence.
The recombined sequence would look like this:
-----V1 ---[V2]---V3---V4---V5---[J1]---[J2]---J3---J4---C
Note that the brackets indicate the segments that are brought together by somatic recombination to form the final mRNA. The other segments are deleted during this process.
Therefore, the DNA sequence of the light chain locus after somatic recombination would be:
V1 ---[V2]---V3---V4---V5---[J1]---[J2]---J3---J4---C
The exact sequence of the recombine DNA will depend on the specific nucleotide sequences of the V and J segments, which can vary between different individuals and cell types.
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genetic inheritance life siences grade 12
