The correct answer in the blank is arterial blood.
Explanation:The elevated levels of CO2 in the arterial blood signals the brain to increase the rate and depth of inhalations and exhalations.
Blood in the veins normally has the high concentration of CO2.
Arterial blood contains very low level of CO2 and High level of CO2 in this blood signals brain to increase breathing rate.
Evidence for evolution how are dna and comparative anatomy used to show relatedness
Answer:
Homologies and vestigial structures are two evidences of the evolution of how DNA and comparative anatomy used to show relatedness
Explanation:
Living organisms have characteristics that make them similar to others, which may suggest that at some point in the history of life on Earth, they shared a common ancestor. When we look at the limbs of a crocodile and a rat, for example, we find that, despite their differences in morphology, they are quite similar in anatomy, suggesting that they may be related. In this case, we say that the characteristic is homologous, that is, it has a similar embryonic origin, but it does not always perform the same function.
Trace structures are structures that are atrophied and have no apparent function in an organism. The presence of these organs can be interpreted as evidence of evolution, since the structure, today without much apparent function, may in the past have been extremely important to the ancestors of that species.
Evidence for evolution are Fossil Record, Homologous Structures, DNA and Molecular Evidence. DNA and Comparative Anatomy to Show Relatedness as DNA Sequencing, Molecular Clock.
1. Fossil Record: The fossil record provides evidence of how species have changed over time. Fossils of extinct organisms help to establish transitional forms, showing the gradual changes and relatedness between different species.
2. Homologous Structures: Homologous structures are anatomical features in different species that share a common ancestry but may have different functions. These similarities suggest a common evolutionary origin. Comparative anatomy studies these structures and their patterns of variation across species.
3. DNA and Molecular Evidence: DNA and molecular analysis have revolutionized our understanding of evolution. By comparing the DNA sequences of different species, scientists can determine their degree of relatedness. Similarities in DNA sequences provide evidence of common ancestry and evolutionary relationships.
2) DNA and Comparative Anatomy to Show Relatedness:
1. DNA Sequencing: DNA sequencing allows scientists to compare the genetic material of different species. The more similar the DNA sequences are between two species, the more closely related they are thought to be. For example, humans and chimpanzees have a high degree of DNA sequence similarity, indicating a close evolutionary relationship.
2. Molecular Clock: Molecular clock analysis uses DNA mutations to estimate the time when two species diverged from a common ancestor. By comparing the number of genetic differences between species and the mutation rate, scientists can approximate the time of divergence and infer relatedness.
3. Homologous Genes: Just as there are homologous structures, there are also homologous genes. These are genes that are shared between different species because they were inherited from a common ancestor. The study of homologous genes provides strong evidence of shared evolutionary history.
4. Comparative Anatomy: Comparative anatomy examines the similarities and differences in the anatomical structures of different species. Homologous structures, such as the bones in the limbs of vertebrates, reveal common ancestry and relatedness.
5. Embryonic Development: Comparing the embryonic development of different species can reveal similarities in early stages, providing evidence of shared ancestry. For instance, the early embryos of fish, reptiles, birds, and mammals share common features, suggesting a common evolutionary origin.
To know more about Evidence here
https://brainly.com/question/1256677
#SPJ6
If the government places a binding price ceiling on cancer-treating drugs, then:
a. fewer people will die from cancer.
b. more people will die from cancer.
c. there will be no change in the number of people who die from cancer.
d. the supply of cancer-treating curves will increase.
Compare and contrast Broca’s area and Wernicke’s area. Describe how each was discovered.
Answer:
Broca’s area is the area of the brain that controls speech production. It was discovered by Paul Broca after he discovered a lesion in the left frontal lobe of a patient who could not speak. Wernicke’s area is the area of the brain that controls speech comprehension. Like Broca’s area, it also plays a role in speech production. Wernicke’s area was discovered by Carl Wernicke, who found that damage to the left temporal lobe resulted in speech deficits.
Down's syndrome is caused by trisomy of chromosome 21, where individuals inherit an extra copy of the chromosome instead of the normal two. there is a wide range in the severity of the disease experienced by each individual, but experience lifelong intellectual disabilities and a number of associated health problems. one of the most common problems experienced by those with down's syndrome, is the early onset of alzheimer's disease (usually emerging between the ages of 30-45), with up to 75% developing dementia in their lifetime (ness et al., 2012). one of the reasons behind this is the fact that the gene encoding for amyloid precursor protein (app) is present on chromosome 21. due to this, individuals with down's syndrome produce more app.
a. what is app and why would this genetic change make alzheimer's disease much more likely to develop?
Amyloid precursor protein (APP) is an integral membrane protein expressed in many tissues and concentrated in the synapses of neurons with unknown function. APP is the precursor molecule whose proteolysis generates beta-amyloid (Aβ), a whose amyloid fibrillar form is the primary component of amyloid plaques. Amyloid plaques are found in the brains of Alzheimer's disease patients. APP gene is triplicated in patients with Down’s syndrome. As a result, an amyloid deposition which is associated with Alzheimer's disease is present in all Down syndrome patients older than 30.
Name one reason scientists believe that all life evolved from a single common ancestor.
The diversity found among dna molecules is due to the sequence of _______.
Final answer:
The diversity among DNA molecules comes from the sequence of nucleotides, which can create a vast number of combinations despite having only four types. Mutations contribute to this diversity by altering DNA sequences, leading to variations among individuals.
Explanation:
The diversity found among DNA molecules is due to the sequence of nucleotides. Even though DNA consists of only four different bases — adenine (A), cytosine (C), guanine (G), and thymine (T) — the arrangement of these nucleotides can vary infinitely. Each organism has a unique DNA sequence, which serves as a genetic blueprint vital for its development, functioning, and reproduction. This genetic diversity is the foundation of the wide variety of life on Earth.
Mutations are changes in the nucleotide sequence that can occur spontaneously or due to external factors like radiation or chemicals. These mutations can lead to variations among individuals within the same species, contributing to the biological diversity we observe. Such variations include single nucleotide polymorphisms (SNPs), which are differences in single nucleotides between individuals, further highlighting the role of nucleotide sequences in genetic diversity.
Which of the following best describes the process of diffusion?
A. Diffusion is the movement of molecules from an area of higher concentration to one of lower concentration by random molecular motion.
B. Diffusion is the movement of molecules from an area of lower concentration to one of higher concentration by random molecular motion.
C. Diffusion is the movement of molecules from an area of lower concentration to one of higher concentration caused by an input of energy to the system.
D. Diffusion is the movement of molecules from an area of higher concentration to one of lower concentration caused by an input of energy to the system.
Diffusion is best described as the process where molecules move from an area of higher concentration to one of lower concentration by random molecular motion, until there's uniform distribution. It does not need an energy input.
Explanation:The best choice that describes the process of diffusion is option A. Diffusion is the movement of molecules from an area of higher concentration to one of lower concentration, driven by random molecular motion. This tends to happen until the concentration of molecules is uniform throughout. It is a naturally occurring process and does not need an input of energy from the system. For example, if you were to open a bottle of perfume in a room, it would eventually spread out, or diffuse, until the smell is evenly distributed in the room.
Learn more about Diffusion here:https://brainly.com/question/29787215
#SPJ3
"the pathway followed by glucose 6 phosphate when the cell needs to divide is called"
Alvira is being treated for borderline personality disorder in an inpatient treatment center. what will the second stage of treatment generally involve
Borderline personality disorder refers to a kind of mental illness, which is signified by an ongoing pattern of differing moods, behavior, and self-image. In the second stage of borderline personality disorder, the patients are been permitted to demonstrate their physical emotions that the patient is avoiding for some time.
The objective of this stage is that the patient fully expresses his or her emotions. The correct answer is option C that is, discussing the loss of her parents at the age of five and how this is associated with Alvira's current emotional issues.
_____ is a common condition that occurs in healthy pregnant women.
a. pre-eclampsia
b. gestational hypertension
c. gestational diabetes
d. physiological anemia
The right option is b.Gestational hypertension
Gestational hypertension is a common condition that occurs in healthy pregnant women. Gestational hypertension is characterized by high blood pressure during pregnancy. This form of hypertension develops after 20 weeks of gestation. Symptoms of gestational hypertension include increased blood pressure, sudden weight gain, headaches, nausea and vomiting.
Physical anthropologists are only concerned with the past evolutionary development of the human animal and the biological variations with the species that occurred in the past.
a. True
b. False
Acupuncture is an alternative medicine that uses wire-thin needles inserted by a trained practitioner into specific points in the body. This ancient form of pain relief and stimulation is said to benefit patients by blocking channels which practitioners claim allow pain to travel within the body. This practice became more widely recognized and used after a New York Times reporter wrote in 1971 of a positive experience with it after surgery. Those who doubt the effectiveness of this treatment for pain attribute the pain relief to a placebo effect: if a patient believes something will reduce their pain, they will experience some relief. The National Institutes of Health says that acupuncture relieves pain and reduces nausea and vomiting, although it is unclear how it works. The few adverse effects reported are due to improperly sterilized needles or improper delivery, making this still a fairly low risk option. For anyone considering acupuncture, they should first research its effectiveness for their specific condition. Summary of statements published by the National Institutes of Health After reading the passage about acupuncture, identify which scientific claim explains why some people say acupuncture does not truly relieve pain.
Answer:
"Those who doubt the effectiveness of this treatment for pain attribute the pain relief to a placebo effect: if a patient believes something will reduce their pain, they will experience some relief."
Explanation:
There is no scientific evidence to prove the healing effect of acumpulture, so some people do not believe it to be a reliable method when relieving pain. The above shows why people who do not believe in the healing power of acupulture believe that those who undergo this treatment really feel a relief from pain. People who do not believe in acupuncture relate this relief to the placebo effect.
Placebo is any substance without pharmacological properties, administered to persons or groups of persons as if it had therapeutic properties. The placebo effect happens when people believe so much that a (ineffective) treatment will work that it actually works.
bacteria can reproduce quickly by means of binary fission. because of this, after binary fission..
Out of the following given choices;
A)the offspring will have traits of both parents.
B)there is genetic variation among the offspring.
C)all the offspring will be genetically identical.
D)none of the offspring will be genetically like the parents.
The answer is C. This is because, in binary fusion, they are no formation of gametes. Therefore genetic variability that comes with sexual reproduction not found in asexual reproduction. Mostly, the offspring buds off from the parent or grows from a split part of the parent. Therefore the offspring is genetically identical to the parent
ions are necessary to activate the binding sites on the actin filaments.
Answer:
Complete the following statements.
Calcium ions are necessary to activate the binding sites on the actin filaments.
The molecule ATP is required each time the myosin head detaches from one site and reattaches to another.
Explanation:
just got it from edge
Which bases are found in a strand of DNA?
Answer:
The bases found in a DNA strand are adenine (A), thymine (T), guanine (G) and cytosine (C).
Explanation:
Nitrogen bases are compounds that are part of the composition of DNA and RNA, which are the nucleic acids found in living organ cells.
They are five and can be classified into two types:
Purine or purine bases - adenine and guanine Pyrimidine or pyrimidine bases - cytosine, thymine and uracil.DNA is composed of the following bases:
Adenina (A) e guanina (G), que são bases púricas. Citosina (C) e timina (T), que são bases pirimídicas.If one gram of each of the following were eaten as food, identify which would yield the most energy within the cell.
Answer & explanation:
When we refer to macronutrients, we talk about proteins, carbohydrates and lipids.
In a meal, carbohydrates are usually in greater quantity than proteins and fats, and are primarily used as fuel for metabolic processes.
Carbohydrates have on average 4 kcal per gram (or 17 kJ/g), proteins also have 4 kcal/g, but fats are approximately 9 kcal per gram (or 37 kJ/g).
Thus, fats have a higher energy charge compared to proteins and carbohydrates, although they are not primarily used as cellular fuel.
Reflect on all the illnesses anna garcia has experienced.did any of her illnesses studied this year result in a breakdown of her body's ability to protect itself?
Anna Garcia had experience various illnesses that weaken her immune system and make her body more susceptible to bacterial infection. Her sickle cell disease results in low amounts of oxygen in the body where the white blood cells cannot function and protect the immune system.
Moreover, her type I diabetes results in fatigue and exhaustion because the body cannot convert glucose to energy. Lastly, she had urinary tract infection for her body does not have strong immune system against the pathogens causing the problem.
In which infertility treatment are eggs fertilized in a clinic and then transferred to the woman's uterus?
Select one microbe, can be infections. What are three interesting facts for the microbe? Is it infectious? If so, what are standard precautions against the spread of the disease?
How would you classify l.l.bean in terms of competitive position why?
The L.L. Bean can be classified as catalogue retailer, for it has an extensive product selection and design indicating the preferences of their customers. It provides customer satisfaction by delivering high quality products, fair pricing, convenience and service in no time.
Moreover, they deliver product from their warehouse to the customer with minimum mistake and fair price to remain in competition for they want to create competitive advantage over the competitor by branding own products and persuasive advertising and give maximum benefits to its customer.
Know the 3 basic types of water pollution and be able to identify examples of each.
What best explains why the moon's surface gravity is only one-sixth of Earth's surface gravity?
Answer: The answer is D
Explanation: The moon is smaller than the earth therefore the gravity is less
How does altering the environmental conditions affect the growth of radish seedlings?
Altering the environmental conditions will affect the growth of radish seedlings. When radish seeds are developed in environments with different light obtainability, seeds that have less light available will exhibit etiolation. Etiolation is regarded as having long pale yellow color stems and small leaves. On the other hand, seeds that have sufficient light available will be sturdier, green and tinier.
If a person requires greater return when risk increases, thatb person is said to be
_____ can produce their own food.
describe how waves superpose on each other using specific examples from two types of waves
During superposition of a wave such as that of the oceans, when the crest and the trough meet, then they cancel out into the period. If two crests meet up, they add up to a crest that’s equivalent to the summation of their amplitudes. This is also true when two troughs meet up.
Biology in eukaryotic cells, translation occurs in the _______ and transcription occurs _______.
Proteins generally have widely different structures, whereas nucleic acids have quite similar structures. explain g
Proteins generally have widely different structures, the nucleic acids have quite similar structures are proteins that has been made up of smaller units called amino acids.
What is amino acid?Proteins generally have widely different structures, the nucleic acids have quite similar structures are proteins that has been made up of smaller units called amino acids.There are twenty different amino acids which are joined together in different pattern to form proteins. Further the folding of polypeptide chain give rise to different shapes and structure of proteins.
Nucleic acids are made up of one kind of monomers called nucleotides. These nucleotides are attached with each other in the form of double strand (DNA) or in single strand form (RNA).The main function of protein is to maintain the structure and function of organs, repair muscle, and muscles. Diet contain high protein has been recommended for the purpose of losing weight, reducing fat, or increasing fat.
Therefore, Proteins generally have widely different structures, the nucleic acids have quite similar structures are proteins that has been made up of smaller units called amino acids.
Learn more about amino acid on:
https://brainly.com/question/28409615
#SPJ5
Two chickens are bred and have five offspring, shown below. What are the most likely genotypes of the parents?
Without the specific offspring genotypes, the most likely genotypes of the parents are inferred to be heterozygous (Bb) based on Mendelian inheritance patterns.
Explanation:The question given pertains to the inheritance patterns and predicting offspring genotypes using Mendelian genetics principles. The scenario hints that the parental generation is likely composed of heterozygous individuals because the offspring exhibit a variety of genotypes typically resulting from a heterozygous cross. To answer this with high accuracy, one would need the precise phenotypes or genotypes of the offspring. Assuming a Mendelian trait with simple dominance and using the provided information, if offspring show a typical 3:1 phenotypic ratio, or a 1:2:1 genotypic ratio with the presence of dominant and recessive traits, we can infer the most likely genotypes of the parents to be heterozygous (Bb).
The most likely genotypes of the parents are Bb and bb.
Explanation:In Mendelian genetics, feather color in chickens is determined by a single gene with two alleles: B (black feathers) and b (white feathers). The capital letter represents the dominant allele, and the lowercase letter represents the recessive allele. Black feathers (B) are dominant over white feathers (b). Looking at the offspring, we can deduce the genotypes of the parents.
Since the first, third, and fifth offspring have black feathers, the only way that can happen is if the parent contributing those alleles has at least one dominant B allele. The second and fourth offspring have white feathers, which means they inherited a recessive b allele from both parents. Therefore, the genotype of the first parent is likely Bb, and the second parent is bb.
This conclusion is supported by the fact that the black-feathered offspring can inherit either a B allele or a b allele from the Bb parent, resulting in black feathers. Meanwhile, the white-feathered offspring must inherit a b allele from each parent (bb) to express the recessive trait. Thus, the most likely genotypes of the parents are Bb and bb, which is consistent with the observed phenotypes of the offspring.
Complete question: Two chickens are bred and have five offspring, shown below. What are the most likely genotypes of the parents?
Offspring:
1. Black Feathers (B_)
2. White Feathers(bb)
3. Black Feathers(B_)
4. White Feathers (bb)
5. Black Feathers (B_)
Chromosome iv in drosophila is a very small chromosome and carries a tiny amount of genetic material. fruit flies that are trisomic for chromosome iv have no apparent phenotypic abnormalities, and they retain their fertility. among the genes on chromosome iv is one for which a recessive allele ey produces the "eyeless" phenotype. a male that is trisomic for chromosome iv and has the genotype + + ey is crossed to a diploid eyeless female with the genotype eyey.