The largest bone of the arm, extending from the elbow to the shoulder, is the humerus.
The humerus is a long bone that connects the shoulder to the elbow joint and is responsible for most of the movement of the arm. It is located between the scapula (shoulder blade) and the radius and ulna bones of the forearm. The humerus has several important features that allow for its function in the arm. The proximal end of the bone forms the shoulder joint with the scapula, while the distal end forms the elbow joint with the radius and ulna bones. The upper part of the humerus is rounded, forming the head of the humerus, which fits into the socket of the scapula to allow for shoulder movement.
The humerus also has several muscle attachments, including the deltoid, biceps, and triceps muscles, which allow for movement of the arm at the shoulder and elbow joints. The humerus is also responsible for transmitting the weight of the arm to the bones of the forearm, allowing for support and stability during activities such as lifting or pushing. Overall, the humerus is a crucial bone for arm function, connecting the shoulder to the elbow and providing support and movement for the upper limb.
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cell bodies of the sympathetic preganglionic fibers are found in the horn of gray matter in the spinal cord. t or f
According to the research, the correct answer is true. The statement "cell bodies of the sympathetic preganglionic fibers are found in the horn of gray matter in the spinal cord" is true.
What is gray matter in the spinal cord?It is the group of neuronal bodies, which is distributed differently depending on its location in the nervous system, that is, in the brain and spinal cord.
In this sense, the central nervous system is made up of the brain, the spinal cord, the gray matter and the white matter that function in the analysis and transmission of information.
Therefore, we can conclude that according to the research, the gray matter is a group of cell bodies that form an important part in the spinal cord of the nervous system, and therefore in brain function.
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The primary origin of coliforms in water supplies is?
a) Natural algae growth
b) Natural Organic Matter
c) Fecal contamination by warm-blooded animals
d) Cross Connections
C) The primary origin of coliforms in water supplies is fecal contamination by warm-blooded animals.
Coliform bacteria are gramme-negative, facultatively anaerobic, rod- shaped bacteria that can raise lactose into gas and acid in 48 hours at 35 °C. Because numerous coliform bacteria are linked with the digestive tract of warm- thoroughbred creatures, including humans, the presence of coliform bacteria in water samples is constantly used as an suggestion of faecal impurity and possible pathogens in water.
Coliform bacteria insinuate water systems via a variety of routes, including direct faecal impurity from creatures or people, runoff from tips or beast feeding operations, and weakened soil or water. They can live for long ages of time in water and can continue to grow and reproduce in water with minimum organic matter and nutrients, similar as groundwater.
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An endangered species has a lek mating system. Twelve males have been identified, three of which are known to gain 100% of copulations from ten females that visit the lek. All ten females laid clutches of 10 eggs each. What is the effective population size?
Group of answer choices
10
13
22
103
112
The effective population size would be the number of successful males, which is three.
The effective population size refers to the number of individuals in a population that contribute genes to the next generation. In the given scenario, the lek mating system is being considered for an endangered species.
Out of the twelve males identified, only three of them are successful in gaining 100% of copulations from the ten visiting females. This means that these three males are the ones passing on their genes to the next generation.
Since the effective population size focuses on the individuals that contribute genes, we consider only the successful males in this case, which is three.
The remaining males who do not gain copulations do not contribute genetically to the next generation and are not part of the effective population.
Therefore, the effective population size is determined to be 3 in this scenario.
It is important to note that the effective population size is a critical factor in assessing genetic diversity, evolutionary potential, and the long-term viability of a population.
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A pink snapdragon is crossed to a white snapdragon. What is the probability of getting a red snap dragon
Answer:
0%
Explanation:
Hope this helped! ^^
Why does it make sense that DNA is held together by weak bonds?
It makes sense that DNA is held together by weak bonds as explained below.
Hydrogen bonds are easier to interrupt granting desoxyribonucleic acid repetition. Hydrogen bonds shaped between complementary base pairs on opposite desoxyribonucleic acid strands kind the "rungs on a ladder" portion of DNA's double-helical structure. Weaker hydrogen bonds hold along the 2 strands of the desoxyribonucleic acid helix. These weak bonds keep the desoxyribonucleic acid stable, however conjointly enable it to be detached for repetition and use by the cell.
DNA is that the info molecule. It stores directions for creating alternative giant molecules, referred to as proteins. These directions are hold on within every of your cells, distributed among forty six long structures referred to as chromosomes. These chromosomes are created from thousands of shorter segments of DNA, referred to as genes.
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2. Tectonic plates can collide to form (Choice 1), subduct to form (Choice 2), and even separate to
form rift valleys. When glaciers recede, large (Choice 3) form in their place.
Answer:
Choice 2
Explanation:
becuase when the teconic plates comes together they collide and causes earthquakes to happen
Hopes this Helps :)
many chlorophytes are unicellular, but others are larger and more complex. what does this indicate regarding the evolutionary hisotry of chlorophytes
The presence of both unicellular and larger, more complex forms of chlorophytes suggests a diverse evolutionary history within the group.
The existence of unicellular and larger, more complex forms of chlorophytes indicates a diverse evolutionary history for this group of organisms. The presence of unicellular chlorophytes suggests that they may represent the ancestral form from which larger and more complex chlorophytes have evolved over time.
This evolution could have occurred through processes such as cell aggregation, specialization, and the development of multicellularity. The larger and more complex chlorophytes might have evolved through adaptations that allowed them to better exploit different ecological niches or to respond to changing environmental conditions. The coexistence of these different forms highlights the evolutionary plasticity and adaptability of chlorophytes.
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please help its due in a hour!!!!!
Answer:
1. The difference between the normal hemoglobin protein DNA sequence and the sickle cell hemoglobin DNA sequence is a base to base shift, in this case adenine (GAG) to thymine (GTG).
2. The difference affects the amino acid sequence of the protein by replacing glutamic acid (Glu) with valine (Val).
Explanation:
In sickle cell anemia, a change in the DNA nucleotide sequence is observed, where adenine is substituted by thymine, whose expression is the change in the amino acid sequence of globine β, incorporating valine instead of glutamic acid. This represents a molecular mutation - point mutation - by subtitution, which corresponds to missense mutation.
Normal hemoglobin protein in a RBC
DNA CTG ACT CCT GAG GAG AAG TCT
Amino acids Leu Thr Pro Glu Glu Lys Ser
Sickle cell hemoglobin protein in a RBC
DNA CTG ACT CCT GTG GAG AAG TCT
Amino acids Leu Thr Pro Val Glu Lys Ser
When GAG is transcribed to mRNA, the CUC codon is obtained, which codes for glutamic acid. Thymine substitution causes the DNA sequence to change to GTG, which is transcribed as CAC, the codon that encodes the amino acid valine. The change from glutamic acid to valine in β-globin causes an altered hemoglobin, giving the abnormal erythrocytes observed in sickle cell disease.
what is photorespiration? plants oxidize glucose to generate nadph. plants consume o2 and release co2. plants transform light energy into atp. plants consume nadph to reduce carbon atoms.
Option A, photorespiration is the process of plants consume O2 and release CO2.
The activity of absorbing molecular oxygen (O2) in response to light while simultaneously releasing carbon dioxide (CO2) from organic substances is known as photorespiration. The reversal of photosynthesis, in which CO2 is fixed and O2 is released, the gas exchange is similar to respiration. Photorespiration, often known as a wasteful process, is bad for C3 plants since it lowers plant output. In tobacco plants cultivated in full sunshine, photorespiration is a significant factor in the shifting light. Under natural circumstances, plants often undergo dynamic changes in light intensities.
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tell us how a biome is from the equator
The ways in which a biome is from the equator is if it is characterized by a warmer and wetter climate.
What is Climate?This is referred to as the weather conditions of an area in general over a long period of time and it is dependent on various types of factors.
Biome which are from the equator are warmer and wetter because the moisture content of warmer air is greater than that of cooler air. They form the world's tropical forests in which regions such as Central and South America possess half of it thereby making it the correct choice.
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A hurricane blows across a caribbean island. the storm flattens trees, drowns or washes away a large number of plants and animals. as a result of the storm, carrying capacity of the island is temporarily reduced for many of the island species
Answer:
The storm is a density-independent limiting factor, because population size and density do not alter the storm's effect
Explanation:
The system parameter that has the potential to significantly alter the output factor is referred to simply as the limiting factor.
The density-independent main limitation could be an earthquake, thunderstorm, flood, or storm. These natural disasters can destroy all animals, regardless of population size.
Whatever the population size, the storm is a density-independent limitation force that will wipe all plants and animals.
As a result, it is a density major limitation since it has an impact on population growth. By reducing the range of animals and plants that are found there, these causes also limit the area's biodiversity.
But over time, the both plant as well as animal populations that survived increase once more and support the formation of a comparable ecosystem in the region.
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HELLP me Idk this question I have to finish it by tomarrow
Answer: B
Explanation: The only reason it would grow thorns is to protect itself and that is the only reason
Answer:
I believe it is B. If I am wrong i am so so sorry. Hope this helped (´・ω・`)
Please answer the question which I attached to this fileQuestion 6
The relationship between individuals II-5 and II-6 is that they are a couple that has two children. This can be assumed because there is a horizontal line that bonds them from the side, and a vertical line goes down their union to part sideways into two individuals (III-4 and III-5).
If 28% of the nucleotides in a DNA molecule contain the base T, what percent will contain the base G
Answer:
22% base G
Explanation:
background info
nucleotides pairs:
T-A (thymine- adenine)
C-G (cytosine- guanine)
because they are pairs, there is an equal amount of T and A. and an equal amount of C and G
# of T= # of A
# of C= # of G
-----------solve
28% is T, then 28% is A
28*2=56%
100-56= 44%
44% left for C and G
44/2=22 (because C and G amounts are equal)
22% C and 22% G
Compare the number and variety of organisms
When we go from a species to a kingdom, there are more and more different kinds of life.
A group of distinct organisms with shared essential characteristics is referred to as a species. They typically contain creatures that are morphologically similar and closely related.
A Genus is a collection of related species that is a part of a Family of related genera.
Higher taxonomy categories are based on a broader range of commonalities. An Order is formed by families that are quite similar. Classes consist of related orders.
Different species within a Phylum only share one or two characteristics in common. For instance, the presence of a notochord places classes Mammalia, Pices, and Amphibia all within the phylum Chordata.
The Kingdom, which is the classification of several categories, is the last step.
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DNA fingerprints used as evidence in a murder trial look something like supermarket bar codes. The pattern of bars in a DNA fingerprint shows : A. the order of bases in a particular gene B. the order of genes along particular gene C. the exact location of a specific gene in a genomic library D. the presence of various-sized fragments from chopped-up DNA
Answer:
D. The presence of various sized fragments from chopped up DNA
Explanation:
The presence of various-sized bits from chopped-up DNA may be seen in the pattern of bars in a DNA fingerprint used as evidence in a murder prosecution. As a result, the correct answer is D.
DNA fingerprints, also known as DNA profiles, are generated by analysing DNA samples extracted from a person's blood, sperm, or other body fluids, as well as tissues such as hair or skin. Using restriction enzymes, the DNA is removed and fragmented. The fragments are sorted by size using gel electrophoresis, which results in a pattern of bands on a gel.
Except for identical twins, this band pattern is unique to each individual and may be used to identify a person or establish if two samples of DNA match. The pattern is formed by the presence of various-sized bits of chopped-up DNA and resembles a retail barcode. As a result, DNA fingerprints are used as evidence in criminal investigations and prosecutions to assist in the identification of criminals or to establish innocence.
DNA fingerprints are a type of genetic evidence commonly used in criminal investigations, including murder trials. The patterns of bars or bands observed in a DNA fingerprint are a result of analyzing specific regions of an individual's DNA. These regions are selected for their high degree of variability among individuals, which allows for unique identification or "fingerprinting" of individuals based on their DNA.
The pattern of bars in a DNA fingerprint does not directly correspond to the order of bases in a particular gene or the order of genes along a particular chromosome. Instead, the pattern represents the presence or absence of various-sized fragments from chopped-up DNA. By comparing the DNA fingerprints of samples taken from crime scenes, suspects, and victims, forensic scientists can determine whether a suspect's DNA matches the DNA found at the scene of the crime.
In conclusion, DNA fingerprints are a valuable tool for forensic investigations, including murder trials. They provide a unique way to identify individuals based on their DNA and can provide crucial evidence in solving crimes.
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Do people with AIDS make antibodies?
Answer:
Yes, people with aids do produce anti bodies.
Explanation:
People who have HIV produce special antibodies that enable them to suppress the virus.
A fossil was analyzed and determined to have a carbon-14 level that is 50 %% that of living organisms. The half-life of C-14 is 5730 years. How old is the fossil
The fossil is approximately 44,000 years old.
Carbon-14 dating is a technique used to determine the age of fossils and other organic materials.
The half-life of carbon-14 is 5730 years, which means that the amount of carbon-14 in a sample is reduced by half every 5730 years.
If a fossil has a carbon-14 level that is 50% that of living organisms, we can use the half-life formula to determine its age:
\(Age = (t x log(2))/5730\)
Where t is the number of half-lives that have passed since the organism died.
Since the fossil has 50% of the carbon-14 of living organisms, we know that one half-life has passed:
\(0.5 = (1 x log(2))/5730\)
Solving for log(2), we get:
log(2) = 0.693
Now we can calculate the age of the fossil:
Age = (1 x 0.693)/5730
Age = 0.00012097 years
This is equivalent to about 44,000 years. Therefore, the fossil is approximately 44,000 years old.
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A classmate states that both energy and matter can be created during photosynthesis and cellular respiration. Is this true? Explain
Energy and matter are also produced during photosynthesis.Chemical energy in the form of glucose and matter in the form of oxygen gas are produced during photosynthesis.Since these are the results of the reaction, they are regarded as process outputs.
Can both energy and matter be created during photosynthesis?
Some cells employ a process called photosynthesis to convert light energy into food.Because it enables plants to produce the food required for the rest of the ecosystem, photosynthesis is crucial.Producing organisms, or those that grow their own sustenance, are plants.The foundation of the ecosystem is formed by producers, who transform solar energy into chemical energy in the form of food for themselves and other ecosystem inhabitants.Although many ecosystems are dominated by plants, other organisms are also capable of photosynthesis.Some bacteria and algae are capable of photosynthesizing, and these organisms are the producers in their ecosystem. A biological process called photosynthesis consumes both matter and energy.The world's physical components are made of matter.The capacity to perform work is energy.By use of various mechanisms, matter and energy can be switched for one another.On the other hand, neither matter nor energy can be generated nor destroyed.The first law of thermodynamics is that they constantly evolve into new forms.All processes in the universe operate in this manner.Energy can be transformed into a variety of forms.Several instances include:Chemical drivekinetic energythe potential energy of gravityelastic force The substance and energy persist even after an organism dies.Instead, they are changed into other forms.For instance, both matter and energy are components of plants.Fungi and bacteria in the soil aid in the breakdown of a plant's internal substance into its constituent parts when it dies.These can be used by newly sprouting plants by being recycled into the soil.As a result, neither the energy nor the substance is wasted; rather, they are transformed into new forms.To learn more about photosynthesis refer
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Please help! which statement best distinguishes between the function of genes and alleles? responses genes provide variation in traits, while alleles express traits.
A genes provide variation in traits, while alleles express traits.
B. alleles are responsible for variation in traits, while genes are responsible for the expression of traits.
C. alleles provide duplicate copies in case of mutation, while genes express all mutations
D. alleles provide duplicate copies in case of mutation, while genes express all mutations.
The statement (A) is correct. Genes provide variation in traits, while alleles express traits.
What are alleles?An allele is a variation of the same sequence of nucleotides at the same place on a long DNA molecule, as described in leading textbooks on genetics and evolution. "The chromosomal or genomic location of a gene or any other genetic element is called a locus and alternative DNA sequences at a locus are called alleles."
Moreover, an allele is one of two or more versions of DNA sequence (a single base or a segment of bases) at a given genomic location. An individual inherits two alleles, one from each parent, for any given genomic location where such variation exists.
Therefore, if the two alleles are the same, the individual is homozygous for that allele. The different versions of the genes are known as alleles. One is inherited from the father, and one from the mother.
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Answer:
The statement (A) is correct. Genes provide variation in traits, while alleles express traits.
Which is the most important system in our body?
While your heart is a vital organ, the brain (and the nervous system that attaches to the brain) make up the most critical organ system in the human body. The human nervous system is responsible for coordinating every movement and action your body makes.
In all vertebrate species and the majority of invertebrate species, the brain acts as the central nervous system. It can usually be found close to the sensory organs that support senses like vision inside the head. It is the most intricate organ in the body of a vertebrate. While the cerebral cortex is thought to have 14–16 billion neurons, the cerebellum is thought to have 55–70 billion. Thousands of synapses connect each neuron in the brain. These neurons normally communicate with one another by transmitting action potential trains via long fibers known as axons to particular target cells in various regions of the body or brain.
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Aerobic respiration occurs when
Answer:
You got O2
Explanation:
Aerobic=W/ oxygen
Answer:
In cells, glucose and oxygen react together to create carbon dioxide and water, and energy is released. As oxygen from the air is needed for it to function, the reaction is called aerobic respiration. Energy in the reaction is released. The mitochondria located in the cytoplasm of the cell are where most breathing occurs.
Explanation:
A company is growing algae in big tanks to make fish food. However, the algae is not growing very quickly, and they suspect either phosphorus, nitrogen, or iron is limiting. What could the company do to figure out which nutrient is limiting?a)Add phosphorus to one tank, nitrogen to another, and iron to a third, and see which treatment increases algal growth.b)Add phosphorus, iron, and nitrogen to all tanks, and see which nutrient increases algal growth.c)Add phosphorus to all tanks, because phosphorus is the nutrient that limits algal growth.d)Add nitrogen to all tanks, because nitrogen is the nutrient that limits algal growth.
Experiment
In this experiment, as the question the investigators are trying to answer is what component is the limiting one, it is necessary to test every one of them, independently. Therefore, the best option is to change the concentration of one of them and leave the rest unchanged. To accomplish this, would be necessary three different tanks, one for phosphorus, one for iron, and one for nitrogen (option A).
To determine which nutrient is limiting algal growth, the company can add phosphorus to one tank, nitrogen to another, and iron to a third, and see which treatment increases algal growth. Therefore, option A is correct.
By adding each nutrient separately to different tanks and observing the effects on algal growth, the company can identify which nutrient is limiting. If the addition of phosphorus to one tank leads to increased algal growth, it suggests that phosphorus was the limiting nutrient.
Similarly, if the addition of nitrogen or iron to their respective tanks results in increased algal growth, it indicates that nitrogen or iron, respectively, was the limiting nutrient. Thus, option A is correct.
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ATP frequently acts as an energy source for organisms because
a.
the energy molecule has a very minimal size
b.
stores energy from any energy source
C.
its energy is efficiently transferred to perform cellular
Process
d.
Could be stored in the cell for a long duration due to it extreme stability
Quick I’m in the exam HELP PLEASE!!!!
Answer:
Its energy is efficiently transferred to perform cellular process
What happens at the end of Chapter 6 A Long Way Gone?
At the end of the chapter 6 of "A Long Way Gone," Beah foreshadows the tragedy of Junior’s separation during a rebel attack on Kamator.
He bemoans the fact that "in the end, it all went to waste, because the rebels did ultimately come and everyone ran away," all of his (and the villagers') labor had been for nothing (p. 43). "It was the last time I saw Junior, my older brother," he concludes the tale (p. 43).
When Beah notices the little child who always appears to initiate fights, it brings back memories of his boyhood. The reader is already aware that Beah's parents are divorced and that they both reside in different villages, so it is surprising that he would explain how his mother's absence caused him to become a "misfit" in his community.
Nevertheless, this is the first time Beah has alluded to having been a troubled child.
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______occurs so plants can make _________to use for energy
Answer:
PhotosynthesisGlucoseplease help
Select the correct answer.
What was August Kekule's most significant contribution to the development of chemistry?
A discovered the stable grouping of elements, called radicals, in organic compounds
B. synthesized the first organic compound in the laboratory
C established that carbon atoms could link directy to each other
D. proposed the ring structure for benzene
a muscle cells takes a glucose molecule, stores it as part of a glycogen and releases it.. what will be the net atp yield when it is processed?
The net ATP yield when a muscle cell processes a glucose molecule and stores it as glycogen depends on whether the glucose is being used for energy or stored for later use.
1. When glucose is used for immediate energy:
- During glycolysis, one molecule of glucose is converted into two molecules of pyruvate, generating a net of 2 ATP molecules.
- If oxygen is available, the pyruvate molecules can enter the mitochondria and undergo further reactions in the Krebs cycle and oxidative phosphorylation.
- In the Krebs cycle, each pyruvate molecule produces 3 NADH, 1 FADH2, and 1 ATP molecule.
- The NADH and FADH2 then donate electrons to the electron transport chain, which generates ATP through oxidative phosphorylation. Each NADH produces approximately 2.5 ATP, while each FADH2 produces approximately 1.5 ATP.
- Overall, from one molecule of glucose, the net ATP yield can range from approximately 30-38 ATP molecules, depending on the efficiency of the mitochondria and the availability of oxygen.
2. When glucose is stored as glycogen:
- Glucose molecules are converted into glycogen through a process called glycogenesis.
- The conversion of glucose to glycogen does not directly generate ATP.
- However, glycogen can be broken down back into glucose when energy is needed through a process called glycogenolysis.
- When glycogen is broken down, it enters the glycolysis pathway and undergoes the same ATP-generating steps mentioned earlier.
- The net ATP yield from glycogenolysis would be the same as the ATP yield from the breakdown of glucose, which is approximately 2 ATP molecules per glucose molecule during glycolysis.
In summary, the net ATP yield when a muscle cell processes glucose depends on whether the glucose is used for immediate energy or stored as glycogen. If glucose is used for immediate energy, the net ATP yield can range from 30-38 ATP molecules per glucose molecule, while glycogenolysis yields approximately 2 ATP molecules per glucose molecule.
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Fossil fuels are very abundant and cost efficient in general true or false
Answer:
False
Explanation:
A panda bear and a deer are not able to breed. they are separate ___.
help
Answer: species lol
Explanation:
i mean depending on how advanced ur class is or whatever they might be looking for “phylum, class, etc.” but u didn’t put any answer choices haha