What is the number of these particles for carbon-12 and carbon-14?
Answers
Answer:
A neutral atom of Carbon-12 contains six protons, six neutrons, and six electrons; therefore, it has a mass number of 12 (six protons plus six neutrons). Neutral carbon-14 contains six protons, eight neutrons, and six electrons; its mass number is 14 (six protons plus eight neutrons).
Explanation:
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Related Questions
What causes ocean water near the poles to be colder than ocean water near
the equator?
A. The water is denser and saltier near the equator, so it holds more
heat.
B. Deep-sea vents pump steam into the ocean's conveyor belt near
the equator
C. Because of Earth's rotation, gyres near the poles flow clockwise.
D. The sun's rays strike the water at an angle at the poles.
Answers
Answer: Equator is closer to the sun, making it warmer there.
Explanation:
Answer:
d
Explanation:
odern humans (homo sapiens) and archaic humans called neanderthals (h. neanderthalensis) shared a common ancestor in africa but diverged in different geographic areas. when modern humans migrated out of africa and dispersed around the world starting about 100,000 years ago, they overlapped with neanderthals in europe. this scenario is best described as
Answers
The fact that many modern humans with European ancestry include between 1% and 4% of Neanderthal DNA in their genomes supports the theory that the two species are linked.
The Neanderthals (Homo neanderthalensis) and modern humans (Homo sapiens) both originated in Africa from a similar ancestor, although their evolution took separate paths in several other continents. In Europe, modern humans and Neanderthals coexisted at the time of their migration out of Africa and global dispersal beginning about 100,000 years ago.
The two species' intimate relationship between one another would be demonstrated by the evidence. The Neanderthals (Homo neanderthalensis) and modern humans (Homo sapiens) both originated in Africa from a similar ancestor, although their evolution took separate paths in several other continents.
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Correct Question:
Modern humans (homo sapiens) and archaic humans called neanderthals (h. neanderthalensis) shared a common ancestor in africa but diverged in different geographic areas. when modern humans migrated out of africa and dispersed around the world starting about 100,000 years ago, they overlapped with Neanderthal in europe. this scenario is best described as _____.
Help anyone it’s my last question plz!
Answers
A)
Acetyl coA is made from pyruvate in the [ Select ] ["mitochondrial matrix", "cytoplasm", "", ""] by [ Select ] ["pyruvate dehydrogenase", "succinate dehydrogenase"] complex. In this process, the acetyl group is moved between enzymes within the complex by the [ Select ] ["lipoamide", "TPP"] . The [ Select ] ["dihydrolipoyl transacetylase", "pyruvate dehydrogenase component"] is the enzyme in which acetyl coA is actually formed. The [ Select ] ["FADH2", "lipoamide"] in the dihydrolipoyl dehydrogenase donates two electrons to NADH, which then goes on to the electron transport chain.
B)
In the citric acid cycle, [ Select ] ["acetyl coA", "pyruvate"] joins with [ Select ] ["oxaloacetate", "glucose"] to make citrate. Citrate possesses [ Select ] ["six", "three"] carbons. During the cycle, [ Select ] ["two", "three"] carbons are lost as CO2. The importance of the cycle is not to generate ATP, but to generate [ Select ] ["reduced electron carriers", "oxidized electron carriers"] , which then go on to the electron transport chain.
Answers
The importance of the cycle is not to generate ATP, but to generate reduced electron carriers, which then go on to the electron transport chain.
A) Acetyl coA is made from pyruvate in the mitochondrial matrix by pyruvate dehydrogenase complex. In this process, the acetyl group is moved between enzymes within the complex by the lipoamide. The dihydrolipoyl transacetylase is the enzyme in which acetyl coA is actually formed. The lipoamide in the dihydrolipoyl dehydrogenase donates two electrons to NADH, which then goes on to the electron transport chain.
B) In the citric acid cycle, acetyl coA joins with oxaloacetate to make citrate. Citrate possesses six carbons. During the cycle, two carbons are lost as CO2.
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True/ False: Most cells within one organism have the same genome (same genes with the same alleles).
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Most cells within one organism have the same genome (same genes with the same alleles) is true statement.
Almost all of a person's body's cells have the same DNA and genes. Different genes are expressed during cell division and growth, resulting in various cell types. The majority of our chemistry is produced by a range of proteins that are produced by those cells and are unique to the cells they form. All cell-based life on earth generally shares the same characteristics.
The genome is made up of all the DNA instructions that are present in a cell. One small chromosome that is found in the mitochondria and 23 pairs of chromosomes that are present in the cell's nucleus make up the human genome. The genome of an individual contains all the information needed for growth and maintenance.
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True statement: Most cells in a single organism share the same genome (same genes with the same alleles).
The total collection of DNA instructions present in a cell makes up the genome. The human genome is made up of 23 pairs of chromosomes that are found in the cell's nucleus and one tiny chromosome that is found in the mitochondria. Everything a person needs to grow and operate is encoded in their genome. One organism's cells largely share the same genome (same genes with the same alleles). Because cell differentiation often only involves epigenetic changes, the aforementioned statement is true for the majority of cells, but not all.
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Which postulate of natural selection is deliberately enforced by dog breeders using artificial selection?.
Answers
Dog breeders actively assert that reproduction and survival are not influenced by chance by using artificial selection.
Advantage in reproduction biological selection?The mechanism of evolution known as reproductive advantage modifies the population's heritable features. Natural selection, according to the theory of evolution, is the process through which a species' phenotype—its outwardly manifested genetic traits—can change over time.
Why is reproductive success critical to the process of natural selection?Long life is not favored by natural selection unless it allows for or resulting in increased reproductive success. Similar to this, even though we might wish it were the case, there isn't necessarily a premium placed on intelligence, physical prowess, or beauty unless these qualities actually result into more offspring than normal.
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Which describes the foramen magnum? large opening at the base of the skull that the spinal cord passes through shallow depression on the skull to which the jaw bone attaches large projection on the skull to which the jaw muscles attach tiny spaces between the fused bones of the skull.
Answers
A large opening at the base of the skull that the spinal cord passes through.
The correct option is A.
What is a foramen magnum?The foramen magnum is a large oval-shaped opening present in the occipital bone.
There are several oval openings in the skull, it is one of them.
The medulla oblongata passes through it, which connects to the spinal cord and brain.
The correct option is A, A large opening at the base of the skull that the spinal cord passes through.
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Answer:
A
Explanation:
What shape did the cells in the cyanobacteria, Nostoc demonstrate?
1- Coccus
2- Bacillus
3- Bacillus
4- Linear
Answers
The cyanobacteria Nostoc demonstrated a filamentous shape. This means that the cells were arranged in a long, thin, and cylindrical structure. This type of shape is common in cyanobacteria and is useful for survival in different environments.
Cyanobacteria are photosynthetic bacteria that can be found in diverse habitats like freshwater, marine environments, and even soil. They can be single-celled or form colonies or filaments that differentiate into different cell types. Nostoc is a genus of filamentous cyanobacteria that is characterized by its ability to form specialized structures called heterocysts.
Heterocysts are specialized cells that can fix atmospheric nitrogen, which is an essential nutrient for plant growth. The filamentous shape of Nostoc allows for efficient exchange of nutrients and gases between cells, which is crucial for the survival of the organism. Additionally, the filamentous shape of Nostoc provides protection against predators and environmental stressors like desiccation.
In conclusion, the cells in the cyanobacteria Nostoc demonstrated a filamentous shape. This shape is useful for efficient exchange of nutrients and gases between cells, protection against predators and environmental stressors, and the formation of specialized structures like heterocysts.
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if two species of woodpeckers eat two different kinds of beetle larvae on pine trees in a forest, we would identify that as:
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If two species of woodpeckers eat two different kinds of beetle larvae on pine trees in a forest, we would identify that as resource partitioning.
A species is both a unit of biodiversity and an organism's basic taxonomic classification in biology. A species is the largest collection of organisms in which any two people of the appropriate sexes or mating types can conceive a fertile offspring, typically through sexual reproduction. In addition, a species can be recognized by its karyotype, DNA pattern, anatomical features, behavioral traits, or ecological niche. Additionally, paleontologists employ the chronospecies concept because fossil reproduction cannot be investigated.
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This is a genetic question:
The Bionomial is a more complex calculation used when you have multiple events AND multiple outcomes. Use the following P (s of A, t of B) = ( N! ) ps qt
S! T!
BTW= s + t = n and p+q = 1
Answers
The formula for the binomial distribution is:
P(s of A, t of B) = (N! / (S! * T!)) * (p^s) * (q^t)Where:
N is the total number of trialsS is the number of successes in the trialsT is the number of failures in the trialsp is the probability of success in each trialq is the probability of failure in each trialThe binomial distribution is a useful tool for calculating the probability of a specific number of successes in a set of trials. It is commonly used in fields such as genetics, where it can be used to calculate the probability of a specific genetic outcome occurring in a population.
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Which of the following codons would signal a tRNA
molecule carrying the amino acid Lysine (Lys) to enter the
ribosome?
OAAA
O AAG
AAU
Both A and B
All of the above
Answers
Answer:
Both A and B
Explanation:
I hope it helps...
Science. Which student is correct
Answers
how you can play your role to overcome the waste issue in your area?
(giving brianliest with extra points)
Answers
Answer:
Recycle and throw away approprite trash
Explanation:
Recycle and throw away appropriate trash.
Sexual reproduction in animals depends on the production of gametes.
Which of these processes produces gametes in animals? *
Mitosis
Fertilization
O Meiosis
Binary fission
Answers
The process that produces gametes in animals is meiosis.
What is MeiosisMeiosis is a specialized type of cell division that occurs in the reproductive cells, or germ cells, of animals. It involves two rounds of cell division, resulting in the production of four haploid daughter cells, each with half the number of chromosomes as the parent cell.
During meiosis, the genetic material is shuffled and recombined through processes such as crossing over and independent assortment. This genetic variation contributes to the diversity of offspring produced through sexual reproduction.
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I thought benzoic acid was obtained from styrax benzoin since gum benzoin is obtained from it. any help here please.
Answers
Answer:
Yes you are right
Explanation:
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Think about the terms predation and parasitism. How would you explain the difference of the two terms to a friend who was confused about these relationships?
Answers
Predation and parasitism are both types of symbiotic relationships, but they differ in the way that one organism benefits from the other.
Predation is a relationship in which one organism (the predator) kills and consumes another organism (the prey) for food. In this relationship, the predator benefits by obtaining a source of food, while the prey is harmed by being killed and consumed.
On the other hand, parasitism is a relationship in which one organism (the parasite) benefits by living on or in another organism (the host), which is harmed by the relationship. The parasite benefits by using the host as a source of food or shelter, while the host is harmed by the loss of resources, damage to tissues, or the spread of disease.
In other words, the key difference between predation and parasitism is that in predation, one organism kills and eats the other for food, while in parasitism, one organism lives on or in the other and benefits at the expense of the host's health.
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Out of the following four options, the concentration at which dsDNA will have the highest Tm is a.10 mm b.1000 μM c.100 mm d. 1M
Answers
The correct option is C: The concentration at which dsDNA will have the highest Tm is 100 mM.
Which concentration will result in the highest Tm for dsDNA?Out of the given options, the concentration at which double-stranded DNA (dsDNA) will have the highest melting temperature (Tm) is 100 mM. Tm is the temperature at which half of the DNA strands in a double helix become denatured or separated.
It is influenced by factors such as DNA sequence, length, and ionic conditions, including the concentration of ions in the solution. In general, increasing the concentration of salt ions, such as potassium or magnesium, can stabilize the double helix and raise the Tm.
In this context, a concentration of 100 mM is likely to provide an optimal ionic environment for maintaining the stability of dsDNA, resulting in a higher Tm compared to lower or higher concentrations. It is important to note that the Tm can vary based on the specific DNA sequence and experimental conditions.
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What would the DNA nucleotide sequence be if the following DNA strand was Replicated?
ATGGGACTCA
Answers
Answer:
Dideoxynucleotides are chain-elongating inhibitors of DNA polymerase, used in the Sanger method for DNA sequencing. They are also known as 2',3' because both the 2' and 3' positions on the ribose lack hydroxyl groups, and are abbreviated as ddNTPs.
Explanation:
TACCCTGAGT I think
I solved using the fact that A <—> T and G <—> C. The reason for this is that the Adenosine sugar bonds best to thymine and the guanine sugar bonds best to cytosine.
1. The barnacles secrete a cement-like substance that anchors them to rocks in the
a. Intertidal Zone
b. Mangrove Forests
C. Pond Area
d. Tropical forests
Answers
The process of culturing bacteria often involves inoculation of cells on a noncellular, agar-based medium. Such a methodology would NOT result in growth of animal viruses because animal viruses:
Answers
The process of culturing bacteria often involves the inoculation of cells on a noncellular, agar-based medium. Such a methodology would NOT result in the growth of animal viruses because animal viruses are host-specific. This means that they require a specific host cell in order to be able to replicate and cause infection.
Agar-based medium is used to culture bacterial cells, not animal cells. Agar-based medium is a jelly-like substance that is used to grow bacterial cells. This medium contains all the necessary nutrients that bacteria need to grow and reproduce, including amino acids, vitamins, minerals, and sugars. Because bacteria are unicellular organisms, they can be easily cultured on an agar-based medium without the need for a host cell.
Once the bacterial cells are inoculated onto the agar-based medium, they will grow and reproduce, forming colonies that are visible to the eye.
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Evidence for evolution reveals that closely related organisms have many
characteristics.
Answers
These creatures are referred to it as homologous structure if their physical and genetic characteristics are comparable. They are comparable because they have followed the same evolutionary path.
The meaning of genetics?Genetics is the study on genes and heredity, or the process through which specific characteristics or characteristics are passed from one generation to the next as a result of variations in DNA sequence. A gene is a section of DNA that carries instructions for constructing one or even more molecules that are necessary for bodily function.
Which examples from genetics?The study studying genes is called genetics. From one age to the next, our genes transmit information. The reason one kid has blonde hair as their mother and their sibling gets brown hair as their father, for instance, is genetic.
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Which of the following statements is not true about the cell theory?
A.
All things are made up of one or more cells.
B.
The cell is the basic unit of life in all living things.
C.
All cells come from pre-existing cells.
D.
All living things share similar cellular structures.
Answers
Answer:
All living things share similar cellular structures hope it helps you<3true/false. polyploid cells contain two copies of each chromosome.
Answers
False. Polyploid cells contain more than two copies of each chromosome.
Polyploidy refers to the condition where cells or organisms have multiple sets of chromosomes. For example, triploid cells have three sets of chromosomes, tetraploid cells have four sets, and so on. Each set of chromosomes within a polyploid cell may consist of multiple copies of individual chromosomes. Polyploid cells refer to cells that contain more than two complete sets of chromosomes. This condition can occur naturally in certain organisms or be induced artificially in laboratory settings. Polyploidy can result from errors during cell division, such as errors in chromosome segregation or fusion of cells with different chromosome numbers.
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How may mRNA be modified before it leaves the nucleus?
Answers
Answer:
The pre-mRNA molecules undergo three main modifications. These modifications are 5' capping 3' polyadenylation and RNA splicing which occur in the nucleus before RNA is translated.
Explanation:
mRNA compares to the hereditary succession of quality, and is perused by a ribosome during the time spent combining a protein.
How mRNA can be modified?it should go through extra handling before it leaves the core. This might incorporate joining, altering, and polyadenylation. These cycles adjust the mRNA in different ways. Such alterations permit a solitary quality to be utilized to make more than one protein. Exons are segments of mRNA which become "communicated" or converted into a protein. They are the coding bits of a mRNA atom.
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how does facilitated diffusion differ from simple
Answers
Answer: in facilitated diffusion there are a specialized membrane channels.
Explanation:
What kind of rock is this?
igneous
Where would this rock most likely be formed?
To which group of rocks would this rock belong?
Rocks can be classified based on texture. The
size of the grains in a rock affects its texture.
Coarse-grained rocks have large grains, and fine-
grained rocks have small grains.
Rocks formed from magma under Earth's surface
have larger grains than rocks formed from lava
on Earth's surface. This is because magma cools
slower underneath the ground than it does above
ground.
Answers
Metamorphic Rock Isua
Metamorphic rock, estimated to be as old as 3.8 billion years, located near Isua at Qorqut Sound, Greenland.
Answer:
What kind of rock is this?
✔ igneous
Where would this rock most likely be formed?
✔ underneath Earth’s surface
To which group of rocks would this rock belong?
✔ coarse-grained rocks
Explanation:
Just worked on this assignment
How does the nervous system influence the respiratory system? (1 point)
O regulates heart rate
O stimulates pathogen response
O controls muscle contraction
o regulates breathing rate
Answers
Answer:
The nervous system influence the respiratory system by regulating breathing rate.
Explanation:
The respiratory system is controlled by the nervous system, which consists of two branches - the sympathetic and parasympathetic nervous systems. In addition the respiratory centers of the brainstem is responsible for the regulation of breathing patterns.
For each sequence of DNA is shown. Write the complementary RNA sequence underneath the letters, then use the codon chart to determine the amino acid sequence. DNA: TTC AAT GGT CTA GGG
Answers
Com RNA: AAC UUA CCA GAU CCC
Amino Acid: (ASN) (LEU) (PRO) (ASP) (PRO)
ABC
1. The model is missing two labels. Locate where each of the following processes are being illustrated and
label them on the diagram. Write a short description of the processes.
Answers
Answer:
The correct answer is : photosynthesis (between plant and the atmospheric CO2) and cellular respiration (between deer and the atmospheric CO2).
Explanation:
1. photosynthesis
Plants and photosynthetic organisms such as few bacteria and algae in the presence of sunlight to combine carbon dioxide (C02) from the atmosphere with water (H2O) to form food in the form of sugars/carbohydrates. These end products of the process store energy. This process is known as photosynthesis.
2. Cellular respiration
It is a somewhat inverted process of photosynthesis as cellular respiration requires oxygen and releases CO2 in the atmosphere. It is the released oxygen that is used by most other organisms for cellular respiration
Arrange the features of eukaryotic chromosome packaging in order from the smallest unit to the largest unit.
1. coiled fiber,
2. nucleotide,
3. chromosome,
4. nucleosome,
5. genome
Answers
Nucleotide, nucleosome, coiled fiber, chromosome, genome.
What is a nucleosome?A nucleosome is the basic repeating unit of eukaryotic chromosome packaging, consisting of a segment of DNA wrapped around a histone protein core.
What is a nucleotide?A nucleotide is the basic unit of DNA, consisting of a sugar molecule, a phosphate group, and a nitrogenous base.
What is a genome?A genome is the complete set of genetic information in an organism, including all of its genes and non-coding DNA.
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