Answer:
The fossil forms that occur in the rocks, however, provide the chief means of establishing a geologic time scale, with the timing of the emergence and disappearance of widespread species from the fossil record being used to delineate the beginnings and endings of ages, epochs, periods, and other intervals.
Answer: The fossil forms that occur in the rocks
Explanation: Trust me
What soil would be 10% silt, 30% clay, and 60% sand__________
Answer: sandy clay loam
If oxygen is present, then
glycolysis
goes too
Pyruvate from glycolysis gets delivered to the mitochondria if oxygen is available. The mitochondrial matrix, which is a region inside the cells, is where the pyruvate is transferred across membranes.
where are The mitochondrial matrix ?Three compartments are defined by the mitochondria's inner and outer membranes; each has a unique function and associated protein parts. The mitochondrial matrix is the final space, enclosed by the inner membrane.
What makes the mitochondrial matrix crucial?There are numerous uses for the mitochondrial matrix. The citric acid cycle is carried out there. This is a critical phase in the production of ATP, an energy molecule used in cell respiration. It has a component known as a nucleoid that houses the mitochondrial DNA.
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Part B Can scientists determine a more precise age of this snail fossil? Explain your answer.
Yes, researchers can pinpoint the fossil's age with greater accuracy. The igneous strata above and below the snail fossil can be examined to determine their exact ages. Scientists can use this absolute age to estimate the sedimentary rock's age between these layers and the fossil it contains.
What is fossil ?Fossils are the remains or signs of prehistoric life that have been preserved by the forces of nature. Shells, bones, exoskeletons, objects preserved in amber, petrified wood, coal, hair, oil, and DNA traces are a few examples of fossils. Another type of fossil is a skeletal structure.
Scientists use a clock of some kind to establish the time of formation of a rock or fossil in order to calculate its age. To date historic occurrences in the distant past, geologists frequently utilise radiometric dating techniques, which depend on the radioactive decay of specific elements like potassium and carbon.Learn more about Snail fossil here:
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In his arguments, the rancher focuses only on his family. In what way is this technique effective? Could his arguments benefit from additional information? If so, what kinds of information?
This technique is effective because by doing so, he draws attention to his issue and makes it easier for others to relate to the rancher's family's predicament.
Arguments where the rancher just focuses on his family can be successful because he attracts attention to his issue and makes it easier for others to relate to the rancher's struggling family. People can identify with others more readily when the discussions are more intimate.
In the movie The Rancher, a physically and emotionally traumatized man comes back to claim the ranch he inherited from a father who hated him. By the time he was sixteen, he hated him so much that he drove him off his land. But when he got back, he discovered friends and family, even if they had to drag him into the group against his will.
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What 3 organelles are involved in energy capture?
Explanation:
Ribosomes
Mitochondria
Golgi bodies
Answer:
Mitochondria are the "powerhouses" of the cell, breaking down fuel molecules and capturing energy in cellular respiration. Chloroplasts are found in plants and algae.
Explanation:
list four types of evidence a scientist use to study climate conditions what's occurred in the past
The history of scientific discovery of climate change began in the early 19th century when Ice Ages and other natural paleoclimate changes were first suspected and the natural greenhouse effect was first identified.
Evidence of past climate includes:
Buried in sediments at the bottom of the oceans and lakesLocked away in coral reefsFrozen in glaciers and ice capsPreserved in the rings of treesTo know more about climate change visit:
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if the wet bulb depression is 3 degrees and the dew point is 24 degrees, what is the relative humidity?
if the wet bulb depression is 3 degrees and the dew point is 24 degrees, relative humidity would be approx. 66%
What is relative humidity?
Relative humidity, often expressed as a percentage, indicates a present state of absolute humidity relative to a maximum humidity given the same temperature. It is a measure of how much water vapor is in a water-air mixture compared to the maximum amount possible.
Moreover, it measures the density of water vapor in a space relative to the temperature in the same space.
Calculate relative humidity RH using the formula, RH = 100 × {exp[17.625 × Dp/(243.04 + Dp)]/exp[17.625 × T/(243.04 + T)]}
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Examples of electron and non-examples of electron. Please have good examples.
Examples of electron are hydrogen atom and example of non electron are lithium
Electron are the smallest of the particles that makeup ab atom and they carry a negative charge and the number of proton and electron is equal in a neutral atom and the hydrogen atom for example has a just one electron and one proton and the uranium atom on the other hand has 92 proton and 92 electron and a non electron also called as non bonding electron and a non bonding electron is an electron not involved in chemical bonding and this can refer to the lone pair and with electron localized on one atom and non bonding electron with the electron delocalized throughout the molecule
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Examples of isotope and non-examples of isotope.
Example: The three hydrogen isotopes are protium, deuterium, and tritium.
The isotopes of carbon, nitrogen, and oxygen are not examples.
What distinguishes isotopes?An isotope can be recognized by its mass, which is made up of all of its protons and neutrons. There are two ways to express isotopes. They both use the equation mass = (number of protons) + (number of neutrons).
Why are isotopes employed?There are several uses for radioactive isotopes. In medicine, cobalt-60 is frequently used as a radiation source, for example, to stop the growth of cancer. Radioactive isotopes are utilized as tracers for both metabolic process research and diagnostic purposes.
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Which hormone helps prevent excessive drops in blood pressure/volume? Not B.
The hormone that helps prevent excessive drops in blood pressure is renin. The correct option is a.
What is blood pressure?Blood pressure is the force exerted by your blood against the walls of your arteries.
Every time your heart beats, blood is pumped into your arteries. When your heart beats and pumps blood, your blood pressure is at its highest.
When the body experiences a reduction in blood flow to the kidneys, such as after a drop in blood pressure, or a huge decrease in blood volume after a hemorrhage or serious injury, this system is activated.
Renin is in charge of producing angiotensin, which causes the release of aldosterone.
Thus, the correct option is a.
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Describe the direction of wind related to atmospheric pressure. The question requires you to state in a simple, matter of fact way, thank you!
Describe how to improve the function of the cell membrane
Answer:
The plasma membrane is a common cell structure found in the cell of both eukaryotes and prokaryotes. It demarks the interior environment of the cell from the external environment and has a semipermeable nature. Structurally it is composed of phospholipids and molecules of proteins. The material which accounts for the rigidity of the plasma membrane is cholesterol; molecules of cholesterol are situated in the middle of phospholipid layers.
A. without/not this
B. study of
C. life/living
What does the
prefix "a-" mean,
as in abiotic?
Abiotic is a prefix that often means "not, without." Abiotic is etymologically defined as "removed from everything related to life," much as amoral is defined as "lacking in morals."
What are abiotic factors?An ecosystem's non-living components that influence its surroundings are known as abiotic factors. Examples in a terrestrial ecology can include heat, light, and water. Salinity and ocean currents are examples of abiotic elements in a marine ecosystem.
The interaction of biotic and abiotic elements results in a special ecosystem.
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Answer:
a) without/not this
Explanation:
The prefix "a-" in abiotic means as "without/not this". Abiotic organisms are non-living components. Therefore, the option (a) is the correct answer.
Are the resulting cells at the end of Mitosis diploid or haploid
diploid
Explanation:The four daughter cells resulting from meiosis are haploid and genetically distinct. The daughter cells resulting from mitosis are diploid and identical to the parent cell.
Harvester ants often strip a bush of all its leaves. Some people believe this helps the plant grow thicker, healthier stems. In an experiment, a student stripped off all the leaves from a set of plants. In the second set of identical plants, the student allowed ants to strip off the plants' leaves. What is the dependent and independent variable
The correct solution will be- the control group of plants with leaves on them.
Harvester ants are the ants which acquire the seeds of the plants and shop them as a supply of meals of their nests in soil.
The experimenter observes that stripping of the plant leaves via way of means of the ant will increase the thickness. The test turned into designed to look at the thickness of the stem with one institution wherein the leaves have been stripped via way of means of the people and one institution with leaves stripped via way of means of the ants.
These instances constitute the experimental agencies wherein stem thickness will fluctuate however it lacked the manage institution in an effort to have the flora with their leaves gift on them and stopping them from stripping via way of means of human and ants.
This manage institution will offer a connection with the experimental agencies and could enhance the test.
Thus, the manage institution of plants with leaves on them is the ideal solution.
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3. These are a part of the biotic component and are responsible for making the
own food.
a. producers
b. consumers
u. bears
c. habitats
d. niche
Answer:
producers
Explanation:
because they are living and most produce their own food through processes like photosynthesis. (e.g. plants and algea)
Hemoglobin is a protein that carries oxygen in red blood cells. The hemoglobin molecules produced by some people have one specific amino acid that is different from the amino acid at that position in normal hemoglobin.
Which of the following is the most likely cause of this amino acid variation?
Group of answer choices
The hemoglobin gene contains a mutation.
Enzymes replace the amino acid once the hemoglobin is produced.
An additional amino acid is mistakenly inserted into the hemoglobin during translation.
An error occurs during the folding of the hemoglobin protein.
Answer:
My best guess is "The hemoglobin gene contains a mutation".
Explanation:
Sorry, I'm not an expert so bear with me!
One more common hemoglobin-related mutation is sickle-cell anemia. It occurs when the amino acid in hemoglobin is substituted from glutamate to valine. It is considered a mutation and is a direct swap from one specific amino acid (glutamate) to a different amino acid (valine) in the same position in the hemoglobin. So, considering that our example (sickle-cell anemia) fits the criteria of swapping one amino acid for another in the hemoglobin, is a mutation, and is passed down genetically (meaning that the hemoglobin gene would need to carry the mutation) it does look a bit like it fits your parameters!
Thus, as I understand it the hemoglobin gene carrying a mutation would make sense as the most likely cause of the amino acid variation.
Again, this is based on 10 minutes of googling. I hope this helps, but apologies if I'm incorrect!! Good luck :)
Which is least affected by chemical weathering?(1 point) Responses a bridge made of iron rods a bridge made of iron rods a statue made of marble a statue made of marble a chair made of plastic a chair made of plastic a pile of tiles made of feldspar
The option that is least affected by chemical weathering is D. A pile of tiles made of feldspar.
What is Chemical weathering?Weathering is the term which is referred to as the process in which rocks are broken down into smaller particles through various types of action and mechanism. On the other hand, chemical weathering involves the breakdown of rocks through chemical reactions occurring between the substances involved.
Clay minerals such as quartz, feldspar etc are least affected by chemical weathering due to the absence of chemical reactions occurring thereby making it the most appropriate choice in this scenario.
In conclusion, the correct option is D.
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The production of ATP in the mitochondria
a. is anaerobic
b. takes place in the outer layer of mitochondria
c. takes place in eukaryotic and prokaryotic cells
d. is directly responsible for beginning the process of making ribosomal RNA
e: requires oxygen
Answer:
E: Requires oxygen
Explanation:
During respiration, glucose reacts with oxygen to form energy stored as ATP which can later be used by the cell.
In fruit flies, brown bodies (B) are dominant to black bodies (b). Cross a black fruit fly with a heterozygous fruit fly. Determine the phenotypic and genotypic rations of their potential offsping
The possible phenotypes of heterozygous fruit flies with brown bodies (Bb) that are crossed with black bodies (bb) include both brown flies (genotype Bb) and black flies (genotype bb).
What is a Punnett square?The Punnett square is a diagram used in genetics to calculate the possible phenotypes and genotypes in offspring according to the cross, which in this case includes Bb x bb to generate Bb and bb offspring.
Therefore, with this data, we can see that the Punnett square can be used to calculate the phenotypes in the next generation through their genotypes.
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What happens when the calf liver DNA preparation is digested with EcoRI? What does this tell you about the number and distribution of EcoRI sites in the calf chromosomes?
Answer: It is cut open so they can
Explanation:
When calf liver DNA is digested with the restriction enzyme EcoRI, the enzyme will cut the DNA at specific recognition sequences.
EcoRI recognizes and cuts the DNA at the palindromic sequence 5'-GAATTC-3', where the caret (^) indicates the cut site:
5'-G ^ AATTC-3'
The result of the EcoRI digestion will be the formation of DNA fragments with varying lengths, depending on the location of the EcoRI sites in the calf liver DNA.
The number and distribution of EcoRI sites in the calf chromosomes can be determined by analyzing the pattern of DNA fragments produced after the digestion. This technique is called Restriction Fragment Length Polymorphism (RFLP) analysis.
If there are more EcoRI recognition sites in the calf liver DNA, the digestion will result in smaller DNA fragments. Conversely, if there are fewer EcoRI recognition sites, larger DNA fragments will be generated. By running the digested DNA fragments on an agarose gel and comparing the fragment sizes to a DNA marker with known sizes, it is possible to determine the number and approximate locations of EcoRI sites in the calf chromosomes.
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After an experiment, Monica creates a graph that shows a direct linear relationship between the size of a fish and the amount of oxygen the fish uses. Describe this trend in terms of the amount of oxygen that a fish would use us as it grows from being very smart very large
Increase in the metabolic activities of the fish necessitated the increase in the consumption of oxygen hence the straight line graph.
What is an experiment?We know that when we carry out an experiment, the aim of the experiment is so that we can be able to deduce the nature of the relationship that is seen to exist between two variables. The variables are the independent and the dependent variables. The dependent variable is directly affected by the independent variable as it changes.
We are also told that what we have here is a straight line graph. This implies that the amount of oxygen that the fish was using was increasing as the age of the fish was increasing. This is what has accounted for the straight line graph.
Now we can see that the reason why we have a straight line graph is that the metabolic activities of the fish was increasing as the age of the fish was increasing thus it had to take in more of the oxygen.
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The pH scale ranges from ____________ to ____________ and is used to indicate the ____________ of a solution.
which option correctly describes the mode of inheritance for sickle cell anemia
recessive, X-linked dominant, X-linked recessive Or dominant
The mode of inheritance for sickle cell anemia is recessive.
Sickle cell anemia is a type of inherited genetic disorder where the blood cells are shaped as sickle or crescent-shaped instead of being oval flat disc-shaped cells. This peculiar structure of the abnormal red blood cells deems them unable to carry sufficient oxygen to the tissues and organs of the body.
To be affected by sickle cell anemia, an individual has to inherit one copy of the sickle cell gene from each parent, irrespective of gender. Thus, it can be also called a type of autosomal recessive disease. The disease is only expressed in the homozygous recessive condition.
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What is number 3 on the cell photo
Answer:
ribosomes
Explanation:
One out of every hundred people of the Hopi Indian tribe inherits the autosomal recessive disease Glucose-6-phosphate deficiency. How many people in the population of six million are carriers of this disease?
Following the Hardy-Weinberg equilibrium theory, in a population of six million people, 1,080,000 individuals are healthy and carriers (heterozygous) for the trait.
What is the Hardy Weinberg equilibrium?The Hardy-Weinberg equilibrium is a theory that states that populations in equilibrium get the same allelic and genotypic frequencies generation after generation.
These populations do not evolve. No evolutive forces are acting on them.
Assuming a diallelic gene, frequencies are
Allelic frequencies
p is the dominant allele frequencyq is the recessive allele frequencyGenotypic frequencies
p² is the frequency of the homozygous dominant individualsq² is the frequency of the homozygous recessive individuals2pq is the frequency of heterozygous individuals
In a population in equilibrium,
p + q = 1p² + 2pq + q² = 1We will consider these equations to solve the problem.
Glucose-6-phosphate deficiency is an autosomal recessive disease.One out of every hundred people of the affection. So this is the homozygous recessive genotypic frequency.Because we have the frequency of the homozygous recessive genotype, we can get the allelic frequency.
q² = 1/100 = 0.01q = √q² = √0.01 = 0.1Now, by clearing the equation p + q = 1, we can get the dominant allele frequency. And then, the frequency of the homozygous dominant genotype.
p = 1 - 0.1 = 0.9p² = 0.9² = 0.81Finally, we can get the frequency of the heterozygous genotype
2pq = 2 * 0.9 * 0.1 = 0.18The number of individuals with each phenotype in the population is,
0.81 * 6,000,000 = 4,860,000 individuals are healthy not carrier0.18 * 6,000,000 = 1,080,000 individuals are healthy carriers. 0.01 * 6,000,000 = 60,000 individuals have the disease.In a population of six million people, 1,080,000 individuals are healthy and carriers (heterozygous) for the trait.
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when does dna replication happen?
Answer:
In short, DNA replication happens after the cell is done growing, during the S or synthesis phase. In eukaryotic cells, this happens in the nucleus, and in prokaryotic cells, this happens in the cytoplasm.
Explanation:
There are many different proteins, such as topoisomerase, ligase, and polymerase; leave a comment if you need details.
What name is given to animal cells with the capacity to differentiate into a specialised cell?
Answer: Stem cells I hope this is helpful to you mark me brainlist if correct then no if wrong
Explanation:
Stem cells are the cells that have an ability to become various types of cells. They are present both during embryonic development (embryonic stem cells) and in the adult body (adult stem cells). Human ES cells differentiating into neuronsStem cells are simple, unspecialised cells found in animals and plants that have the ability to divide to form cells of the same type. They can also differentiate into a variety of specialised cells. Stem cells can be harvested from embryonic umbilical cord or adult bone marrow..A cell capable of differentiating into any type of cell is known as "totipotent". For mammals, totipotent includes the zygote and products of the first few cell divisions. There are also certain types of cells that can differentiate into many types of cells.
what happens when you smell chlorine with bleach explain
Answer: Difficulty breathing or shortness of breath.
Explanation: Bleach and chlorine are dangerous chemicals and they also smell bad. When you inhale both of them at the same time it can knock you out. With all the chemicals the human body cannot control that and as a result your body doesn't know what to do. This can lead to you getting temporary/permanently injured.
What process uses light energy to make ATP?
A. photosynthesis this answer
B. homeostasis
C. pigmentation
D. cellular respiration