What do food chains demonstrate? What do they tell us about energy?
Answers
Answer:
Explanation:
They demonstrate the flow of energy from one thing to the next. They tell us Energy is a non-stop force.
Answer:
Food chains demonstrate that energy is ever-lasting. It is always transferred from organism to organism, and the cycle just goes on. Everytime an animal eats another, it absorbs that organisms energy and so on.
Explanation:
ok boomer
Related Questions
You have a friend who lost 7 kg (about 15 pounds) of fat 5/s on a regimen of strict diet and exercise. How did the fat leave her body?* It was released as CO2 and H2O. 0 It was converted to heat and then released. It was converted to ATP which weighs much less than fat. 0 It was broken down to amino acids and eliminated from the body. 0 It was converted to urine and eliminated from the body.
Answers
When a friend who lost 7 kg (about 15 pounds) of fat 5/s on a regimen of strict diet and exercise would have lost the fat as CO₂ and H₂O (Option A).
According to the Laws of Thermodynamics, energy cannot be destroyed, but it can be transformed. During the process of losing weight, the fat molecules break down into CO2 and H2O molecules, which are then eliminated from the body in the form of sweat, urine, and carbon dioxide while breathing.
The chemical formula for fat is C₅₅H₁₄O₆. The process of fat breakdown begins when triglycerides stored in fat cells are hydrolyzed into glycerol and fatty acids. Glycerol is absorbed into the bloodstream and is either metabolized or excreted in urine while fatty acids are sent to the liver, where they are further broken down through a process called beta-oxidation. The byproducts of beta-oxidation, including acetyl-CoA, enter the citric acid cycle, also known as the Krebs cycle, which takes place in the mitochondria of our cells.
During this cycle, acetyl-CoA combines with oxaloacetate to form citrate, which undergoes a series of enzymatic reactions, eventually leading to the formation of CO₂ and H₂O molecules, which are then eliminated from the body in the form of sweat, urine, and carbon dioxide while breathing.
Thus, the correct option is A.
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When a person loses weight, the body metabolizes the adipose tissue and breaks it down into its constituent elements. The body converts it to carbon dioxide and water, which are released into the atmosphere through breathing, sweating, and urinating.
When a person loses 7 kg of body fat, the body's metabolic processes convert it into 6 kg of carbon dioxide and 1 kg of water, which is excreted through urine and sweat.The fat is broken down into its constituent elements in the body when the body loses weight. Carbon dioxide and water are produced as a result of the chemical breakdown of fat in the body. The carbon dioxide and water produced by fat breakdown are released into the atmosphere through a variety of mechanisms, including breathing, sweating, and urinating, as well as being excreted through other bodily fluids.
As a result, the body is able to dispose of the fat that has been broken down, allowing the person to lose weight and achieve a healthier body weight.
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which of the following structures in chlorarachniophytes provides evidence that they evolved through the endosymbiosis of a green alga by a heterotrophic eukaryote?
a. mitosomes b. flagella c. nucleomorph d. food vacuole
Answers
The structure in chlorarachniophytes which provides evidence that they evolved through the endosymbiosis of a green alga by a heterotrophic eukaryote is c. nucleomorph.
What are Chlorarachniophytes?The Chlorarachniophytes, a community of photosynthetic unicellular organisms, are an intriguing group of organisms. The endosymbiotic acquisition of a green alga by a heterotrophic eukaryote is evidenced by the presence of chloroplasts that are surrounded by four membranes.
Nucleomorphs are small vestigial nuclei that are found in some algae. In some algae, such as the Chlorarachniophytes and Cryptophytes, nucleomorphs are a result of secondary endosymbiosis, where a eukaryotic cell engulfed another eukaryotic cell that had already engulfed a red or green alga (primary endosymbiosis) in the past.
Hence, the correct answer sis Option C.
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population _________ is how individuals are spaced within a population.
dynamics.
size
pyramid.
dispersion
Answers
Population dispersion is how individuals are spaced within a population. Option d is correct.
Population dispersion refers to the way individuals are arranged within a population. It can be clumped, random, or uniform. Clumped dispersion occurs when individuals cluster together, often due to the availability of resources or social behavior. Random dispersion occurs when individuals are spaced unpredictably, usually due to the absence of strong environmental factors or social behavior.
Uniform dispersion occurs when individuals are evenly spaced, typically due to competition for resources or territorial behavior. Studying population dispersion can provide insight into the distribution of resources, social behavior, and ecological interactions within a population. Option d is correct.
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4. In horses, black color (B) is dominant over chestnut color (b). In a Punnett
square, show the cross between two hybrid black horses.
B
Answers
Answer:
The cross between two hybrid black horses would produce three black and one chestnut horse, shown in a Punnett square as required.
Explanation:
According to the question, the coat color in horses follows Mendelian inheritance, where the gene for black coat color (denoted by B) is dominant over the gene for chestnut coat color (denoted by b). Thus, for a horse to have a black coat color, either of the two genotypes may be possible : (i) BB and (ii) Bb.Bb is termed heterozygous or may be referred to as hybrid black. However, to have a chestnut coat color, the horse must have the genotype bb.How to make a Punnett square to determine the cross between two hybrid black horses?
To make the Punnett square, we must know the gametes produced by the two parent individuals. Here, both parents are hybrid black (Bb). So each of the two parents will produce two types of gametes --- one bearing the gene for black coat color (B) and the other bearing the gene for chestnut coat color (b).These gametes are then placed in a Punnett square and all possible gamete combinations are obtained. Here, since two gametes from each parent are involved, so the number of possible combinations = 2² = 4. These combinations are : BB ---- True black/ homozygous black Bb ---- Hybrid black/ Heterozygous blackBb --- Hybrid black/ Heterozygous blackbb ---- chestnut Therefore, phenotypic ratio = Black : Chestnut = 3 : 1And genotypic ratio = BB : Bb : bb = 1 : 2 : 1.
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Where are protons located?
A. Outside the nucleus of an atom
B. Inside the nucleus of an atom
C. Inside the nucleus of agell
D. In the cell membrane
Answers
Answer:
B
Explanation:
both the protons and neutrons are located in the nucleus.
I hope this helps
Describe how secondary electron (SE) and backscattered electron
(BSE) signals are formed in a scanning electron microscope, making
clear in your answer four differences between the two types of
signal
Answers
In a scanning electron microscope, the signals from the sample result from the interaction of the electron beam with the sample. These signals include secondary electrons (SEs) and backscattered electrons (BSEs).SEs are formed when the incident beam strikes atoms in the sample and causes the emission of low-energy electrons.
SEs are emitted from a thin layer near the surface of the sample and carry information about the surface topography. They have low energy and are easily scattered by the sample. SE signals provide high-resolution images of the sample surface.
BSEs are formed when the incident beam strikes atoms in the sample and causes the emission of high-energy electrons. BSEs are emitted from a greater depth in the sample than SEs and carry information about the composition of the sample. They have high energy and can penetrate deeper into the sample.
BSE signals provide information about the atomic number of the sample material. The four differences between SE and BSE signals are:
1. Depth of origin: SEs are emitted from a thin layer near the surface of the sample while BSEs are emitted from a greater depth in the sample.
2. Energy: SEs have low energy while BSEs have high energy.
3. Scattering: SEs are easily scattered by the sample while BSEs are less scattered by the sample.
4. Information provided: SE signals provide high-resolution images of the sample surface while BSE signals provide information about the atomic number of the sample material.
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A well is a structure created to obtain water from deep in the geo sphere. From which stage of the water cycle does the wall obtain water
Answers
True/False? only germ-line mutations are transmitted to progeny.
Answers
The given statement " only germ-line mutations are transmitted to progeny" is true beacuse during fertilization to form a new organism Mutations are changes that occur in the genetic material (DNA).
Somatic mutations, which occur in non-reproductive cells, are not inherited because they are not present in the sperm or egg cells that combine of an organism. They can arise spontaneously or as a result of exposure to mutagens such as radiation or certain chemicals.
Mutations can have a range of effects on an organism, from being benign or even beneficial to being harmful or lethal. In the context of a species, mutations can play an important role in evolution. They introduce genetic variation into a population, which can be acted upon by natural selection, genetic drift, or other evolutionary forces.
If a mutation confers a selective advantage, it may become more common in a population over time. Conversely, if a mutation is harmful or has no effect on fitness, it may be lost from the population.
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Compare the transport of glucose with the transport of fats and cholesterol in the body
Answers
Cholesterol is conveyed by complex particles is known as lipoproteins whereas Glucose transporter (GLUT) is a transport protein responsible for the transportation of glucose.
What transports cholesterol throughout the body?Cholesterol proceeds through the blood on proteins called “lipoproteins.” Two types of lipoproteins carry cholesterol all around the body: LDL (low-density lipoprotein) cholesterol, sometimes called “bad” cholesterol that makes up most of your body's cholesterol. Cholesterol.
This is transported by compound particles, called lipoproteins, which have specific proteins on their surface. These proteins, called apolipoproteins, have a crucial function in the metabolism of lipoproteins.
So we can conclude that Lipoproteins transport cholesterol and fatty acids throughout the body. Cholesterol is a major elector of every mammalian cell membrane.
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which ones are living? I will mark branilest for first answer
water
decaying log
insects
rocks
worms
trees
air
frog
Answers
Answer:
Decaying log
insects
worms
trees
frog
Worms
Trees
Frog
Why is mosa called to mrs.newtons supermarket?
Answers
Answer:
I dont know why
what's the answer
Write a 2 paragraph summary describing the similarities and differences between the different algae. Make sure to use the terms stipe, air bladder, and blade in your summary. Also include comparisons between the various red algae species, as well as between the different types of algae (red, brown, green).
Answers
Red algae contain chlorophyll a, chlorophyll d, and phycoerythrin, whereas brown algae have chlorophyll a, chlorophyll c, and fucoxanthin, and green algae contain chlorophyll a, chlorophyll b, and xanthophylls.
A stipe is a stalk-like structure seen in algae. It can emerge as a short structure near the base of the alga (as in Laminaria) or as a huge, complex structure that runs throughout the algal body (as in Sargassum or Macrocystis).
The only seaweeds with air bladders are brown algae. The pigment fucoxanthin gives seaweeds in the phylum Phaeophyta their brown hue, allowing them to absorb sunlight more effectively and thrive in deeper water than other seaweed species.
Vegetative reproduction through fragmentation is a trait shared by all algae. Fragmentation is an asexual reproduction mechanism in which one fragment of an organism's body is broken owing to external physical forces. Each component then develops into a unique individual. Such reproduction is widespread in filamentous algae such as Ulothrix and Spirogyra.
The blade's role is photosynthesis, which is comparable to that of land plants. Food is grown there using a mix of sunshine energy and nutrients from the water. The gas bladder is utilized to maximize photosynthesis on the top surface. The stipe is used to support the blades.
What is Algae?The term "algae" refers to a broad and diverse collection of photosynthetic eukaryotic organisms. It is a polyphyletic assemblage of species from several separate clades.
In freshwater habitats, algae play a variety of critical and useful tasks. They generate oxygen and absorb CO₂, serve as the foundation of the aquatic food chain, remove nutrients and contaminants from water, and stabilize sediments.
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Phosphate homeostasis is closely associated with ______________________ homeostasis
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Phosphate homeostasis is closely associated with Calcium homeostasis.
What is Homeostasis?The stable internal, external, and chemical conditions that are maintained by living systems are known as homeostasis in biology. In order for the organism to function at its best, a number of factors, including body temperature and fluid balance, must be maintained within predetermined ranges.What is Phosphate Homeostasis?The regulation of intestinal intake of dietary phosphate, renal phosphate reabsorption and excretion, and the interchange of phosphate between extracellular and bone storage pools determines the body's phosphate homeostasis.
What is Calcium Homeostasis?The system through which the body maintains adequate calcium levels to avoid hypercalcemia or hypocalcemia, both of which can have significant negative effects on health, is known as calcium homeostasis.
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8 Explain The fossils shown are of a marine
organism. In which of the three rock layers
would you expect to find fossils of an organism
that went extinct before the marine organism
evolved? Explain your answer.
Answers
Answer:
It is the bottom layer.
Explanation:
you would expect the marine organism to go extinct before it evolved because the deeper the layer, the older the fossil
Most of the human genome is made up of a)introns. b)repeats of DNA sections (e.g., Alu). c)nonrepeated noncoding DNA. d)promoters and regulatory sequences such as enhancers. e)repeats of DNA that do not jump to different chromosome locations.
Answers
Most of the human genome is made up of b)repeats of DNA sections (e.g., Alu).
The 20,000–25,000 genes that make up the human body are entirely encoded in the coding regions of DNA, while the noncoding portions of DNA contain no genes. Together, these two types of DNA make up the human genome.
The 23 pairs of chromosomes in cell nuclei plus a tiny DNA molecule present in each mitochondria make up the human genome, which is a full set of nucleic acid sequences for humans. The nuclear genome and the mitochondrial genome are often treated separately. [4] Both DNA sequences that code for proteins and different forms of DNA that do not code for proteins are present in human genomes. The latter is a broad group that include DNA coding for non-translated RNAs, including ribosomal RNA, transfer RNA, ribozymes, tiny nuclear RNAs, and several forms of regulatory RNAs.
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Predict the percents of genotypes you would expect in any cross between a homozygous dominant parent and a homozygous recessive parent.
I need help asap
Answers
Answer:
50% Xx 50% xx
Explanation:
Homozygous dominant = Xx
Homozygous recessive = xx
When you cross the two, using a pungent square, you get Xx, xx, Xx, xx which means 50% will be Xx and 50% will be xx
What would be the consequences in successive generations of offspring if the chromosome number were not reduced during meiosis?
Answers
If the chromosome number were not reduced during meiosis, it would result in polyploidy, the condition of having multiple sets of chromosomes in an organism's cells. Polyploidy can occur through autopolyploidy, where an organism has multiple sets of chromosomes from the same species, or allopolyploidy, where an organism has multiple sets of chromosomes derived from different species.
Polyploidy can have significant consequences for offspring in successive generations. It often leads to larger and more robust individuals with increased vigor and adaptability. Polyploidy can cause reproductive isolation between polyploid and diploid individuals, potentially leading to the formation of new species.
It can also result in altered gene expression, changes in reproductive behavior, and reduced fertility due to meiotic problems. Polyploidy has played a role in plant speciation and can contribute to the genetic diversity and adaptability of populations.
Overall, if chromosome number were not reduced during meiosis, the occurrence of polyploidy would have far-reaching effects on the phenotype and evolutionary potential of offspring, influencing their reproductive success, genetic interactions, and potential for adaptation to changing environments.
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what is it called when animals are the opposite of albino?, im lost and this si in my bio
Answers
Answer:melanism
Explanation:albino is when an animal has no melanin, which is the chemical that causes pigment (color). Melanism is when an animal has too much melanin and is completely black. That animal is melanistic.
What scientific evidence supported the conclusion that chemical signals are used for communication across the synapse in most neurons
Answers
Communication across the synapse in most neurons is a complex process that involves the transmission of chemical signals from the presynaptic neuron to the postsynaptic neuron. The scientific evidence that supports this conclusion is based on extensive research conducted over several decades.
Scientists have used a variety of techniques to study the communication between neurons, including electrophysiological, biochemical, and imaging methods. One of the key findings from these studies is that chemical neurotransmitters are responsible for transmitting signals across the synapse.
Some of the most well-known neurotransmitters include acetylcholine, dopamine, serotonin, and norepinephrine. These neurotransmitters have distinct effects on the postsynaptic neuron, depending on the type of receptor they bind to. In addition to the identification of neurotransmitters, scientists have also developed methods to study the release and uptake of these molecules at the synapse.
Another line of evidence that supports the conclusion that chemical signals are used for communication across the synapse comes from studies of the effects of drugs and toxins on neurotransmitter systems.
Finally, advances in genetic engineering have allowed researchers to manipulate the expression of specific neurotransmitter receptors and transporters in neurons. These studies have provided additional evidence that chemical neurotransmitters are the primary means of communication across the synapse in most neurons.
The identification of neurotransmitters, the measurement of their release and uptake, the effects of drugs and toxins on neurotransmitter systems, and genetic manipulation of specific receptors and transporters have all contributed to our understanding of this fundamental process in neuroscience.
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What Is WEATHERING help ill give you brainlest
Answers
Answer:
weather is the climatic condition s of a place for a short period of time . components of weather are -raunfall,cloudniss etc.
For each of the following settings in Exercise
(i) identify the variables in the study
(ii) for each variable tell the type of variable (e.g., categorical and ordinal, discrete, etc.)
(iii) identify the observational unit (the thing sampled)
(iv) determine the sample size
1. A biologist measured the body mass (g) and sex of each of 123 blue jays.
Answers
The sample size in this study is 123 blue jays, as mentioned in the question.
(i) Identify the variables in the study:
There are two variables in this study:
1. Body mass (measured in grams)
2. Sex
(ii) For each variable, tell the type of variable:
1. Body mass - This is a continuous variable since it can take any value within a given range.
2. Sex - This is a categorical variable, specifically nominal, as it is divided into distinct categories (male and female) without any inherent order.
(iii) Identify the observational unit (the thing sampled):
The observational unit in this study is each individual blue jay.
(iv) Determine the sample size:
The sample size in this study is 123 blue jays, as mentioned in the question.
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Starting with the somatic ovarian cell used as the source of the nucleus in the cloning process, explain how this outcome occurred.
Answers
Answer:
The process of cloning using a somatic ovarian cell as the source of the nucleus is known as somatic cell nuclear transfer (SCNT). The basic steps of SCNT are:
Explanation:
The nucleus of a somatic ovarian cell (a cell that is not involved in reproduction) is removed.
The nucleus is then inserted into an egg cell (oocyte) from which the nucleus has been removed.
The egg cell is then stimulated with an electric pulse or chemical agents, which causes it to begin the process of cell division.
The resulting cloned cell divides and develops into a ball of cells called a blastocyst, which is similar to a very early stage embryo.
The blastocyst is then implanted into the uterus of a surrogate mother or a laboratory dish for further development.
The cloned embryo will develop into an organism that is genetically identical to the organism from which the somatic cell was taken.
Genetically identical animals, including sheep, cattle, and other species, are produced using this method. The genetic and molecular mechanisms of development, illness, and aging are also studied using it in research. Cloning has been used to generate animals that are genetically identical and employed in medical research, as well as animals that have been genetically altered to produce useful proteins in their milk and other body fluids.
In many tropical rainforests, people clear land by cutting down trees and burning them. After a few years, the soil runs out of nutrients and cannot be farmed any longer. How does this practice of “slash and burn agriculture” affect Earth’s atmosphere?
Answers
Answer:
The polution from burning the trees. Also, the loss of oxygen from the loss of trees.
Explanation:
hope this helps a little
How did Rutherford's work help form the present-day model of the atom?
Answers
Answer:
I think the atomic model of Rutherford was a step in the historical development of the today concept of an atom.
Explanation:
These plants have free-living gametophytes and free-living sporophytes. The sporophyte generation is dominant and larger than the gametophyte generation. There is one type of spore, and the gametophyte generation grows outside of the spore wall. Which plant or plants am I describing? (SELECT ALL THAT APPLY) 000000000 Ferns Cycads Selaginella Lycopodium Conifers Ginkgo Hornworts Mosses Angiosperms 3 pts Liverworts
Answers
The correct answers are: Ferns, Hornworts, Mosses, and Liverworts.
The plants that fit the given description are:
Ferns: Ferns have free-living gametophytes and free-living sporophytes. The sporophyte generation is dominant and larger than the gametophyte generation. Ferns produce one type of spore, and the gametophyte generation grows outside of the spore wall.Horworts: Hornworts also have free-living gametophytes and free-living sporophytes. The sporophyte generation is dominant and larger than the gametophyte generation. Hornworts produce one type of spore, and the gametophyte generation grows outside of the spore wall.Mosses: Mosses have free-living gametophytes and free-living sporophytes. The sporophyte generation is dominant and larger than the gametophyte generation. Mosses produce one type of spore, and the gametophyte generation grows outside of the spore wall.Liverworts: Liverworts also have free-living gametophytes and free-living sporophytes. The sporophyte generation is dominant and larger than the gametophyte generation. Liverworts produce one type of spore, and the gametophyte generation grows outside of the spore wall.Therefore, the correct answers are: Ferns, Hornworts, Mosses, and Liverworts.
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enhancer elements regulate which stage of gene expression?
Answers
Enhancer elements regulate the transcription stage of gene expression. This is a long answer because it requires an explanation of the various stages of gene expression, and how enhancer elements play a role in controlling the transcription of genes.
Enhancer elements are DNA sequences that are located upstream or downstream of a gene and bind to transcription factors, which in turn recruit RNA polymerase to the gene's promoter region. This leads to the initiation of transcription, where the gene's DNA is converted into RNA. Enhancer elements can also influence the rate of transcription and the tissue-specific expression of genes. Therefore, enhancer elements are critical regulators of gene expression and play an essential role in various biological processes.
These elements are specific DNA sequences that bind to transcription factors and increase the rate of transcription, allowing for increased production of the corresponding mRNA and, ultimately, the protein product.
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I need help on all of these
Answers
Round answers to 1 decimal place. When 48.7g of silicon dioxide is heated with carbon, 29.2 g silicon carbide is produced with carbon monoxide gas. What is the percent yield of this reaction?
Balance the equation before you solve: SiO2 + C -> SiC+ CO
Answers
The percentage yield of this reaction is equal to 90.6%
To figure this out, we need to balance the equation. The balanced equation is: SiO2 + 3C → SiC + 2CO
How to calculate the percentage yield of the reaction?First, we should point out that the molar mass of silicon dioxide (SiO2) is equal to 60.08 g/mol, while the molar mass of silicon carbide (SiC) is 40.10 g/mol.These masses are found by adding up the mass of each element that makes up these compounds.
Then we will use the percentage yield formula to find the yield of the realtion.The formula is Percent yield = (actual yield ÷ theoretical yield) × 100%
Substituting in the formula we get:Percent Yield = (29.2 g ÷ (0.8115 mol × 40.10 g/mol)) × 100%
Percent yield = 90.6%
Therefore, we can conclude that the percentage yield of the reaction is 90.6%
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For each of the following human pedigrees, indicate whether the inheritance pattern is recessive or dominant. What feature(s) of the pedigree did you use to determine the mode of inheritance? Give the genotypes of affected individuals and of individuals who carry the disease allele but are not affected.
Answers
As per the given question, the mode of inheritance for each of the following human pedigrees is to be determined whether it is recessive or dominant. The features of the pedigree that are used to determine the mode of inheritance are to be identified and the genotypes of affected individuals and of individuals who carry the disease allele but are not affected .
Pedigree 1 the inheritance pattern of Pedigree 1 is Recessive .The feature that helped to determine the mode of inheritance is the affected individuals can be homozygous recessive as two unaffected parents can produce an affected offspring. Therefore, the genotypes of affected individuals are homozygous recessive (rr) and individuals who carry the disease allele but are not affected are heterozygous (Rr).Pedigree 2The inheritance pattern of Pedigree 2 is Dominant.The feature that helped to determine the mode of inheritance is the affected individuals have at least one affected parent. Therefore, the genotypes of affected individuals are homozygous dominant (RR) or heterozygous (Rr) and individuals who carry the disease allele but are not affected are homozygous recessive (rr).Pedigree 3The inheritance pattern of Pedigree 3 is Recessive.The feature that helped to determine the mode of inheritance is the affected individuals can be homozygous recessive as two unaffected parents can produce an affected offspring. Therefore, the genotypes of affected individuals are homozygous recessive (rr) and individuals who carry the disease allele but are not affected are heterozygous (Rr).Pedigree 4The inheritance pattern of Pedigree 4 is Dominant.The feature that helped to determine the mode of inheritance is the affected individuals have at least one affected parent. Therefore, the genotypes of affected individuals are homozygous dominant (RR) or heterozygous (Rr) and individuals who carry the disease allele but are not affected are homozygous recessive (rr).Learn more about inheritance at https://brainly.com/question/31274912
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swelling of blood which occurs in an organ or tissue resulting from rupture blood vessels.True or false?
Answers
The given statement, swelling of blood which occurs in an organ or tissue resulting from rupture blood vessels is True.
Because Hemorrhage is a type of medical emergency that occurs when there is a rupture of blood vessels, causing blood to accumulate in an organ or tissue. This type of bleeding can be caused by trauma, such as a laceration or broken bone, as well as by medical conditions and medications.
In hemorrhage, swelling of the affected area can occur as a result of the extra blood pooling in the area. This can lead to a variety of complications, such as decreased oxygenation of tissue, increased pressure on nerves, organ damage, and shock. It is important to seek medical attention as soon as possible upon recognizing symptoms of a hemorrhage, as it can be a life-threatening condition.
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