what do you mean by physical quantity
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Answer:
A physical quantity is a property of a material or system that can be quantified by measurement.
Related Questions
Which example is not likely to effect the distribution of life based on sea surface temperatures increasing?
A. The increased temperatures effect the lower and upper part of the ocean, making upwelling less likely, and reduce the nutrient levels available to primary producers.
B. The sudden rise in temperatures places stress on organism's tolerance and the ability to adapt and survive.
C. Due to increased temperatures the pH will become neutral and reduce the chances for organisms to adapt.
D. As temperatures rise, the amount of sea ice will decrease, effecting the organisms that live in those conditions.
Answers
Answer: the answer is b
Explanation:
0.840 frequency of dominant phenotype, 0.16 frequency of recessive phenotype frequency of heterozygous genotype?
Answers
The frequency of the heterozygous genotype would be 0.84.
What will be the frequency of heterozygous genotype?If the frequency of the dominant phenotype is 0.84 and the frequency of recessive phenotype is 0.16, it is possible to estimate the frequency of the heterozygous genotype if the mode of inheritance is known.
If the dominant phenotype is caused by the dominant allele (A) and the recessive phenotype is caused by the recessive allele (a), then heterozygous genotype (Aa) would result in the expression of the dominant phenotype. If mode of inheritance is dominant, then frequency of the heterozygous genotype would be equal to the frequency of the dominant phenotype.
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Note: The question given on the portal is incomplete. Here is the complete question.
Question: When 0.840 is frequency of dominant phenotype and 0.16 is frequency of recessive phenotype. What is the frequency of heterozygous genotype?
what is the point of biology if she dont rlly teach anything
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Explain what happened to the population in both environment and why that support or refute the claim that yellow color is always an adaptive trait in a yellow environment
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Yellow Ostrilopes had a higher chance of surviving in areas where there were predators because they blended in. A trait of yellow was adaptability.
The weather has changed to be dry. In this population, the distribution of traits changed as generations progressed in this environment, changing the large diversity of water-storage traits to solely Level 9 water-storage traits, which are adaptive traits.
A characteristic is a feature of the entire or a specific part of an organism's developmental pattern. Hence, an adaptive trait is a feature of the developmental pattern that aids in the survival and/or reproduction of its bearer in a particular series of conditions. It is up to the person to adopt the adaptive trait.
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Which hypothesis is testable?
O Plants that are grown by using brand A fertilizer taste best.
O Plants that have flowers look prettier than plants that do not have flowers.
O Plants will eventually die off if global warming trends continue.
O Plants make more sugar on sunny days than on Cloudy days.
Answers
Answer:
D.Plants make more sugar on sunny days than on Cloudy days
Answer:
D. Plants make more sugar on sunny days than on cloudy days.
Explanation:
i got 100% on edge
Help me with these questions!
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Cell size is limited by the surface area to volume ratio. As cells grow, the ratio decreases, making it more difficult for the cell to obtain nutrients and get rid of waste.
The primary stages of the cell cycle are interphase (G1, S, G2) and the M-phase (mitosis). During interphase, the cell grows and replicates its DNA, while the M-phase involves the division of the replicated chromosomes into two identical daughter cells.
How to explain the information regarding cellsMitosis is only one stage of the cell cycle and produces two genetically identical daughter cells. However, it does not produce new cells, as the daughter cells formed during mitosis are still part of the same parent cell.
Cyclins are regulatory proteins that control progression through the cell cycle. They are produced at specific points in the cell cycle and bind to cyclin-dependent kinases (CDKs), which then phosphorylate target proteins, leading to changes in the cell's behavior and allowing progression through the cycle.
The cancer cell cycle is different from a normal cell cycle in several ways. Additionally, cancer cells often have defects in checkpoints, which normally serve to prevent cell division if DNA is damaged. This allows the cancer cells to divide even if their DNA is damaged, leading to the accumulation of genetic mutations.
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explain why a single organism cannot have one of every allele from its gene pool
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A single organism cannot have one of every allele from its gene pool because the gene pool of a population consists of all the alleles present in all the individuals within the population. Therefore, the gene pool of a population is much larger than the set of alleles carried by a single individual.
Furthermore, each individual can only carry two alleles for a given gene, one from each parent. Even if an individual were to inherit one allele from every other individual in the population, it would still not have every allele present in the gene pool.
Additionally, the frequency of alleles in a population can change over time due to natural selection, genetic drift, and gene flow. Therefore, even if an individual were to somehow possess every allele present in the gene pool at a particular moment in time, it would not necessarily have every allele present in the gene pool in the future.
In summary, the gene pool of a population is much larger than the set of alleles carried by a single individual, and an individual can only carry two alleles for a given gene. Therefore, it is impossible for a single organism to have one of every allele from its gene pool.
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Which additional model component is necessary to explain how geranium plant leaves produce carbohydrates?
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Magnesium is a further model component necessary to explain how geranium plant leaves produce carbohydrates.
What is geranium?
Geranium is a genus of 422 species of flowering annual, biennial, and perennial plants that are commonly referred to as the cranesbills. they're found throughout the temperate regions of the world and the mountains of the tropics, but mostly within the eastern part of the Mediterranean region. The long, palmately cleft leaves are broadly circular in form
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The process of parting subsections opposite from the elevation or direction the hair was cut to ensure the precision of the cut or blend is called __
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The process of parting subsections opposite from the elevation or direction the hair was cut to ensure the precision of the cut or blend is called cross checking.
What is Cross checking?
In hockey, cross-checking refers to the act of a player striking an opponent firmly with the shaft of his stick held between two hands.
This happens when a player pushes another player with their stick by holding it in a "pushing" motion with one hand at the top and the other around halfway down the shaft.
A Cross-Check, fortunately for referees, is quite simple to recognize. Referees must evaluate the severity of the infraction once it occurs. Then, he can evaluate one of the punishment categories—which are covered in more detail later on in this guide.
Thus, The process of parting subsections opposite from the elevation or direction the hair was cut to ensure the precision of the cut or blend is called cross checking.
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Which is the following is true about saturated fats?
a. They are typically solids at room temperature.
b. They are generally the healthiest fats to consume.
c. They cannot be broken down by enzymes.
d. By definition, they always contain one or more double bonds.
Answers
The following is true about saturated fats: they are typically solids at room temperature, which is in Option A, as they have a high melting point due to the absence of double bonds in their fatty acid chain.
What are saturated fats?Saturated fats are a type of fat molecule that consists of long chains of fatty acids. These fatty acids are called "saturated" because they are fully "saturated" with hydrogen atoms, that is, there are no double bonds between the carbon atoms in the fatty acid chain. This results in a straight, rigid structure that allows these fats to pack tightly together, which is why they are usually solid at room temperature.
Hence, the following is true about saturated fats: they are typically solid at room temperature, which is in Option A.
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true or false? achondroplasia, one of the most important genetically determined diseases of the skeletal system, is characterized by the formation of very thin and delicate bones that are easily broken under minimal stress.
Answers
Answer: Flase
Explanation: this is false because achondroplasia is not mined towards the disease of the skeleton disease.
Jamal has some counters in a bag.
36% of the counters are red
the rest of the counters are yellow
Jamal puts 50 blue counters into the bag.
Now 25% of the counters in the bag are blue.
Work out the number of yellow counters in the bag.
Answers
there are 32 yellow counters in the bag.
About 36% of the counters are red, so the proportion of red counters is: 0.36
The proportion of yellow counters in the original bag is therefore:
\(1 - 0.36 = 0.64\)
Next, Jamal adds 50 blue counters to the bag. Let's say that the original number of counters in the bag was x. After adding 50 blue counters, the total number of counters in the bag is x + 50.
As 25% of the counters in the bag are now blue. So the number of blue counters in the bag is:
\(0.25(x + 50)\)
Similarly,
Red counters: 0.36x (since the proportion of red counters is still the same)
Yellow counters: (0.64)x (since the proportion of yellow counters is still the same)
The total number of counters in the bag is the sum of the red, yellow, and blue counters:
\(x + 50 = 0.36x + 0.64x + 0.25(x + 50)\)
Simplifying this equation, we get:
\(x + 50 = 1x + 0.25x + 12.5\)
Combining like terms, we get:
\(0.75x = 37.5\)
Dividing both sides by 0.75, we get:
\(x = 50\)
So there were originally 50 counters in the bag. We can now find the number of yellow counters in the bag:
Yellow counters = \((0.64)x = (0.64)(50) = 32\)
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In which Koppen climate do you find monsoons?DCBA
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In Koppen climate classification:
- A stands for tropical, in this climate is where do you find monsoons (Am).
- B stands for arid.
- C stands for temperate.
- D stands for continental.
- E stands for polar.
a claim, evidence , and reasoning.
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An explanation, according to the Claim, Evidence, Reasoning (CER) model, consists of: A claim that answers the question. Data from students provides evidence. Reasoning using a rule or scientific principle to explain why the evidence supports the claim.
What exactly is evidence in biology?Biologists use a variety of evidence types to track evolutionary changes over long time periods. Homologous physical features shared by species, for example, can provide evidence for common ancestry (but we have to be sure they are really homologous, and not the result of convergent evolution).
Preservation of biological evidence from crime scenes is critical because DNA can provide the best evidence of innocence - or guilt - when a case is reviewed. Without the biological evidence, none of the nation's more than 350 DNA exonerations would have been possible.
Any biological sample, including liquid blood or bloodstains, liquid saliva or saliva stains, and liquid semen or dried semen stains (including from vasectomized males) deposited on virtually any surface; genital/vaginal/cervical samples collected on can be questioned or unknown.
As a result, the Claim, Evidence, Reasoning (CER) model states that: A claim that answers the question
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EXPERIMENT 1: FOLLOWING CHROMOSOMAL DNA MOVEMENT THROUGH MEIOSIS
Trial 1 – Meiotic Division Beads Diagram
Prophase I
Metaphase I
Anaphase I
Telophase I
Prophase II
Metaphase II
Anaphase II
Telophase I
Cytokinesis
Answers
The experiment involves observing the movement of chromosomal DNA through meiosis using beads to represent the different stages.
Meiosis is a specialized form of cell division that occurs in sexually reproducing organisms, resulting in the formation of gametes (sperm and eggs). The experiment aims to track the movement of chromosomal DNA during meiosis using beads as visual representations of the different stages.
In Prophase I, the chromosomes condense, and homologous chromosomes pair up and undergo crossing over. Metaphase I involves the alignment of homologous chromosomes at the center of the cell. Anaphase I is characterized by the separation of homologous chromosomes, which move to opposite poles of the cell. Telophase I marks the end of the first meiotic division, where the chromosomes decondense and nuclear envelopes may reform.
During Prophase II, the chromosomes recondense, and the nuclear envelope breaks down again. Metaphase II sees the alignment of individual chromosomes at the cell's center. Anaphase II involves the separation of sister chromatids, which migrate to opposite poles. Telophase II marks the end of the second meiotic division, where the chromosomes decondense, and nuclear envelopes may reform once more.
Lastly, Cytokinesis occurs, resulting in the division of the cytoplasm and the formation of four haploid daughter cells, each containing half the number of chromosomes as the original cell. By observing the movement of beads representing chromosomes through these stages, the experiment provides insights into the process of meiosis and the behavior of chromosomal DNA.
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Which is physical hazard?
Bacteria
Mold
Cleaner
Filet Bone
Answers
Among the options provided, the physical hazard is the Filet Bone. Therefore option 4 is correct.
A physical hazard refers to any physical object or substance that can cause harm or injury to individuals.
Filet Bone: The filet bone, typically referring to a bone found in a fish filet, can be a physical hazard.
It is a solid object that has the potential to cause physical injury if ingested and not properly handled or removed. Consuming or swallowing a bone can result in choking or damage to the digestive tract.
Bacteria: Bacteria are microscopic organisms and are generally considered biological hazards rather than physical hazards.
They can cause illness or infection if ingested, inhaled, or come into contact with an individual's body, but they do not pose a direct physical risk in the same way as a physical object.
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What is the difference between a species and a population?
Answers
Answer:
population is the number of something and species is something like a human or animal
Explanation:
A population is defined as a group of organisms of the same species that live in a particular area. There can be more than one population living within any given area. While a species is a group of organisms that share similar characteristics and a species can live within many different areas.
I hope this helps!
When a can is crushed is it going threw physical change or chemical change
Answers
answer
physical change
Explanation:
Answer:
Physical
Explanation:
E
The activation of olfactory receptors requires that the odorant become immersed in: cerumen. mucus. blood. saliva.
Answers
The activation of olfactory receptors requires that the odorant become immersed in mucus.
Olfactory receptors are situated in the olfactory epithelium, which is covered in mucus. This mucus layer helps to trap odorant molecules and hold them in place so that they can interact with the olfactory receptors.
The mucus layer also plays a vital role in signaling the brain about the presence of odorants. When odorant molecules bind to the olfactory receptors, they trigger a cascade of chemical reactions that generate electrical signals that travel along nerve cells to the brain. The mucus layer helps to amplify these signals and ensure that they are transmitted efficiently.
Therefore, odorant molecules must be immersed in mucus.
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Webbed fingers is inherited as a recessive X-linked trait. An unaffected male has children with an affected female. What is the chance that their male children will have webbed fingers?
A. 50% of their male children will have the trait.
B. 100% of their male children will have webbed fingers
C. 0% of their male children will have webbed fingers.
D. 25% of their male children will have the trait
NOTE : I know that the answer is not A. 50% of their male children will have the trait.
Answers
Answer:
its b
Explanation:
Identify the incorrect statement or statements: 1. the diaphragm relaxes during inspiration 2. as volume increases pressure decreases 2 and 3 4. smoking has been linked to COPD 3. as volume decreases pressure increases
Answers
The correct option is: 2 and 3- As volume increases pressure decreases; As volume decreases pressure increases. Statement 2 is incorrect. As volume increases, pressure decreases because the same amount of gas is distributed over a larger area. Statement 3 is incorrect.
As volume decreases, pressure increases because the same amount of gas is compressed into a smaller area.Inspiration is the process of inhaling, while expiration is the process of exhaling. During inspiration, the diaphragm contracts and pulls downwards to increase the size of the chest cavity. This results in a decrease in pressure within the lungs, allowing air to flow in. During expiration, the diaphragm relaxes and moves upwards, reducing the size of the chest cavity and increasing the pressure within the lungs.Smoking has been linked to several respiratory diseases, including chronic obstructive pulmonary disease (COPD). This is a progressive disease that makes it hard to breathe and can lead to a range of complications.
In conclusion, only statement 2 and 3 are incorrect. When the volume increases the pressure decreases and when the volume decreases the pressure increases.
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What is evolution?
O a trait that allows organisms in a population to better survive and reproduce in their
environment
o the process by which individuals that are better adapted to their environment are more likely to
survive and reproduce
O a group of organisms that can mate to produce fertile offspring
O the process in which inherited traits of a population change over many generations
Answers
Answer:
O the process in which inherited traits of a population change over many generations
Explanation:
The traits of a populations evolve or "change" over many generations
Answer:
The process by which inherited traits of a population change over many generations.
Explanation:
Evolution in its contemporary meaning in biology typically refers to the changes in the proportions of biological types in a population over time.
Psychologists have described the human nervous system as the communication and control center for the body. The nervous system allows us to take in information from the environment, communicate the information to different parts of the body, and coordinate the body's response. The nervous system itself is made up of neurons, or nerve cells, that communicate with each other by receiving and transmitting electrochemical signals, called neurotransmission. All human behavior is made possible by the activity of individual neurons working together in the nervous system. Think about a simple action you do every day, like answering your phone. When you perform this routine act, what are the individual neurons in your nervous system doing to make it possible
Answers
Psychologists describe the human nervous system as the communication and control center for the body. The nervous system allows us to receive information from the environment, communicate the information to different parts of the body, and coordinate the body's response.
The nervous system is composed of neurons, or nerve cells, that communicate with each other by receiving and transmitting electrochemical signals, called neurotransmission. All human behavior is made possible by the activity of individual neurons working together in the nervous system.
When an individual performs a routine act like answering the phone, it’s the individual neurons in the nervous system that make it possible. Each time an individual answers the phone, there are multiple neurons that work together. For instance, the auditory neurons in the ear pick up the sound of the phone ringing and send the signal to the brain.
This signal is then processed in the auditory cortex in the brain, which allows the individual to recognize that it’s the sound of their phone. Next, the motor neurons that control the movement of the fingers move in response to the conscious decision to pick up the phone. The visual neurons in the eye also receive information that confirms the location of the phone.
In summary, the act of answering the phone involves the communication of multiple neurons working together to achieve a coordinated response.
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the density of the object on the left is 1.5 g/cm³. Which has greater density? ______
A object
B fluid
C neither
The object will _________ in the water column.
A sink
B float
C Be suspended
Answers
(because if the density is over 1 g/mc3 it will sink :-)
Use examples to describe three of the four main themes that connect all the information in biology
Answers
Can someone help me describe
The relationship between organisms and the environment in exchanging carbon
Answers
The relationship between organisms and the environment in exchanging carbon is photosynthesis.
What do you mean by photosynthesis?Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities.
The Sun! The energy from light causes a chemical reaction that breaks down the molecules of carbon dioxide and water and reorganizes them to make the sugar (glucose) and oxygen gas.
Photosynthesis requires sunlight, carbon dioxide, and water as starting reactants. After the process is complete, photosynthesis releases oxygen and produces carbohydrate molecules, most commonly glucose.
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why is the δg of atp hydrolysis in the cell about twice as great as the δg of atp hydrolysis in a test tube under standard conditions?
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The δg of ATP hydrolysis in the cell about twice as great as the δg of ATP hydrolysis in a test tube under standard conditions because in the cell the reaction is catalyzed by enzymes whereas in the test tube the reaction occurs on its own (spontaneously).
ATP hydrolysis is the reaction in which the breakdown of ATP occurs. This breakdown releases energy which is then used by the various processes of the body. This energy is due to the high energy phospho-anhydride bonds in the ATP.
Enzymes are the biological catalysts that fasten up the rate of reaction. This increase in the rate of reaction is fur to the reduction in the activation energy of the chemical reaction.
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What is one of the functions of nucleic acids
Answers
Answer:
The functions of nucleic acids have to do with the storage and expression of genetic information.
Explanation:
Which is correctly matched with the
appropriate number of chromosomes
in each daughter cell?
A Meiosis: 2 sets of 23 chromosomes
B. Meiosis: 1 set of 23 chromosomes
C. Mitosis: 1 set of 23 chromosomes
D. Mitosis: 2 sets of 46 chromosomes
Answers
The match for the appropriate number of chromosomes in each daughter cell is "Mitosis: 2 sets of 46 chromosomes". Option D. This is further explained below.
What is Mitosis?Generally, Mitosis is simply a kind of cell division that produces two daughter cells with the same number and type of chromosomes as the parent nucleus, as seen in normal tissue growth.
In conclusion, "Mitosis: 2 sets of 46 chromosomes" matches the appropriate number of chromosomes in each daughter cell.
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What is the element with the highest electronegativity value?
What is the element with the highest electronegativity value?
A)calcium
B)cesium
C)fluorine
D)helium
Answers
The element with the highest electronegativity value is fluorine.
Electronegativity is a measure of the ability of an atom to attract electrons towards itself in a chemical bond. It is expressed on a scale from 0 to 4, with fluorine having the highest electronegativity value of 4.0. This means that fluorine has the strongest ability to attract electrons towards itself in a bond compared to any other element. In contrast, helium has a very low electronegativity value of 0.0, indicating that it has a very weak ability to attract electrons. Calcium and cesium have electronegativity values of 1.0 and 0.79, respectively, which are significantly lower than that of fluorine.
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