this structure is involved with regulating the heart rate, respirations, and the diameter of blood vessels.
Answers
The autonomic nervous system (ANS) regulates heart rate, respiration, and blood vessel diameter.
The autonomic nervous system is a branch of the peripheral nervous system that controls involuntary functions of the body. It consists of two main divisions: the sympathetic nervous system and the parasympathetic nervous system. These divisions work together to maintain homeostasis and regulate various bodily functions, including heart rate, respiration, and the diameter of blood vessels.
The sympathetic division of the ANS is responsible for the "fight or flight" response, which increases heart rate, dilates airways for increased respiration, and constricts blood vessels in certain areas to redirect blood flow to vital organs and muscles.
On the other hand, the parasympathetic division of the ANS promotes the "rest and digest" response, which decreases heart rate, promotes relaxation of airways for normal respiration, and helps to dilate blood vessels, allowing for efficient blood flow to tissues.
Through the intricate balance and coordination between these two divisions, the autonomic nervous system plays a crucial role in regulating heart rate, respiration, and blood vessel diameter, allowing the body to adapt to changing physiological demands and maintain overall homeostasis.
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Related Questions
To make organic fertilizer by composting, you should not include ________.
A) crop residues
B) dead leaves, weeds
C) animal manures
D) shredded plastic and metals
E) wood chips
Answers
To make organic fertilizer by composting, you should not include Shredded plastic and metals.
What is fertilizer?Fertilizer is a material that is added to soil to provide essential plant nutrients and improve crop yields. It is typically composed of macronutrients such as nitrogen, phosphorus, and potassium, as well as other micronutrients that are beneficial to plant growth. Fertilizers can be organic or inorganic, and they are applied to the soil in a variety of ways. Organic fertilizers are derived from plant, animal, and mineral sources, while inorganic fertilizers are composed of chemical compounds. Fertilizers are essential for both agricultural and home gardening purposes, as they provide essential nutrients to crops and plants that are not naturally present in the soil. Fertilizers help to enrich the soil and promote healthy, vigorous plant growth.
Therefore, the correct option is A.
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is it close to the end of the world
Answers
Answer:
i think so because of co
vid-19
Answer:
Yes it is. I know this because it talks about the last day's in the bible.
"But know this, that in the last days critical times hard to deal with will be here. For men will be lovers of themselves, lovers of money, boastful, haughty, blasphemers, disobedient to parents, unthankful, disloyal, having no natural affection, not open to any agreement, slanderers, without self-control, fierce, without love of goodness, betrayers, headstrong, puffed up with pride, lovers of pleasures rather than lovers of God, having an appearance of godliness but proving false to its power; and from these turn away."
-2 Timothy 3:1-5
Explanation:
Which of the following can lead to cancer?
A. a disruption in the cell cycle
B a cell entering the G0
C. A cell never leaving G0
D. The death of a cell
Answers
The option that can lead to cancer is a disruption in the cell cycle (option A).
What causes cancer?Cancer is a disease in which the cells of a tissue undergo uncontrolled (and often rapid) proliferation.
Cell cycle is the life cycle of eukaryotic cells from a quiescent beginning, growth, duplication of DNA followed by mitosis and division. The period of time in the cell cycle when nothing is happening is known as the G0 phase i.e. inactivity.
Cancer is a genetic disorder. It happens when genes that manage cell activity mutate and create abnormal cells that divide and multiply, eventually disrupting how the body works.
Therefore, disruption or alteration in the normal procedure of the cell cycle can lead to cancer.
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if the base squence in a portion of a strand of dna is actaagatc what is the base sequence in the strand of mrna transcrbied from this dna
Answers
The base sequence in the strand of mRNA transcribed from this DNA is UGAUUCUAG.
1. Identify the complementary base pairs. Adenine (A) always pairs with Thymine (T), and Cytosine (C) always pairs with Guanine (G). So, the complementary base pairs for each of the DNA bases are: A pairs with T and G pairs with C, TGATTCTAG
2. Transcribe the DNA strand to RNA. Replace each DNA base T with a RNA base U = Uracil. A = U, C = G, G = C, T = U. UGAUUCUAG Therefore, the base sequence in the strand of mRNA transcribed from the given DNA sequence ACTAAGATC is UGAUUCUAG.
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___ Phrenic nerve ___ Median nerve ___ Tibial nerve ___ Radial nerve ___ Femoral nerve ___ Ulnar nerve ___ Common fibular nerve ___ Musculocutaneous nerve A. Anterior and lateral leg muscles and skin B. Posterior thigh and leg muscles, foot C. Diaphragm D. Some forearm flexors, most intrinsic hand muscles, skin on medial hand E. Posterior arm muscles, forearm extensors, skin on lateral hand F. Anterior arm muscles, skin on lateral forearm G. Most forearm flexors, skin on anterior and lateral hand H. Anterior thigh muscles, skin on anterior and medial thigh and leg
Answers
The phrenic nerve is responsible for breathing, while the median nerve innervates some forearm muscles, the tibial nerve innervates the posterior thigh and leg muscles, the radial nerve innervates the posterior arm muscles, the femoral nerve innervates the anterior and medial thigh and leg muscles, the ulnar nerve innervates most forearm flexors, and the common fibular nerve innervates the anterior and lateral leg muscles and skin.
the nerves with their corresponding functions. Here are the correct matches:
A. Anterior and lateral leg muscles and skin - Common fibular nerve
B. Posterior thigh and leg muscles, foot - Tibial nerve
C. Diaphragm - Phrenic nerve
D. Some forearm flexors, most intrinsic hand muscles, skin on medial hand - Ulnar nerve
E. Posterior arm muscles, forearm extensors, skin on lateral hand - Radial nerve
F. Anterior arm muscles, skin on lateral forearm - Musculocutaneous nerve
G. Most forearm flexors, skin on anterior and lateral hand - Median nerve
H. Anterior thigh muscles, skin on anterior and medial thigh and leg - Femoral nerve
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Which best describes absolute dating?
comparing fossils found in rock layers
using radioactivity to find the age of a rock in years
placing events in the correct sequence or order
using the law of superposition
Answers
This(ese) feature(s) is/are unique to the thoracic region of the vertebral column.
a. fused vertebrae
b. superior, inferior, and transverse costal facets
c. vertebral prominens
d. atlas and axis
Answers
The feature that is unique to the thoracic region of the vertebral column is the superior, inferior, and transverse costal facets. These facets are the articulating points between the thoracic vertebrae and the ribs. The correct option is b.
The thoracic region is the central region of the spinal column that corresponds to the chest. There are 12 vertebrae in the thoracic region, each of which is linked to a pair of ribs. The thoracic spine has a moderate degree of mobility but is more restrictive than the cervical spine. It is designed to shield the heart and lungs by connecting to the rib cage.
The vertebral column is a sequence of bones that runs along the spine's midline. The vertebral column consists of 33 bones in humans, including the skull's 24 vertebrae, the sacrum's five fused vertebrae, and the coccyx's four fused vertebrae. The vertebral column is divided into five regions: cervical, thoracic, lumbar, sacral, and coccygeal. Each of these areas has a unique curvature that helps to balance the body's weight.
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help me asap i’ll mark brainliest! pls and thanks
Answers
Answer:
Winter
Explanation:
summer is going to start in june. Winter start from December to February.
Let’s determine the gametes that would be formed by nondisjunction in meiosis I.
Drag the correct daughter cells that would result from nondisjunction in meiosis I.
Answers
During nondisjunction, two gametes contain two sets of chromosome and two gametes does not contain any chromosome. Hence, options A and B are correct.
What is meiosis?Meiosis is a type of cell division that results in the production of four gamete cells and a 50% reduction in the number of chromosomes in the parent cell. To develop egg and sperm cells for sexual reproduction, this process is necessary.
Cells move through prophase, metaphase, anaphase, and telophase with each round of division.
During nondisjunction, two gametes contain two sets of chromosome and two gametes does not contain any chromosome. Hence, options A and B are correct.
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question!
What type of organelle would be found in high amounts in a leaf cell?
another question,
What type of organelle would be found in high amounts in a muscle cell?
Answers
For the Muscle cell I’m pretty sure it’s a mitochondria
mice that are homozygous for a lethal recessive allele die shortly after birth. i a large breeding colony of mice, you find a surprising 5% of all newborns die from this trait. in checking lab records, you discover that the same proportion of offspring have been dying from this trait in this colony for the past 3 years. (mice breed several times a year and have large litters). calculate the frequency of the recessive allele. how might you explain the persistence of this lethal alleleat such a high frequency?
Answers
The frequency of the recessive allele is q = 0.224, and the frequency of the dominant allele is p = 0.776.
The frequency of the recessive allele can be calculated using the Hardy-Weinberg equation, which relates allele frequencies to genotype frequencies in a population:
p² + 2pq + q² = 1
where p is the frequency of the dominant allele, q is the frequency of the recessive allele, p² is the frequency of the homozygous dominant genotype, q² is the frequency of the homozygous recessive genotype, and 2pq will be the frequency of the heterozygous genotype.
In this case, we know that q² = 0.05 (since 5% of all newborns die from the lethal recessive allele), so we can solve for q:
q² = 0.05
q = √(0.05) = 0.224
Therefore, the frequency of the recessive allele is q = 0.224, and the frequency of the dominant allele is p = 1 - q = 0.776.
The persistence of this lethal allele at such a high frequency could be explained by several factors, such as genetic drift, founder effects, or selective pressures that maintain the allele in the population despite its lethality.
For example, if the heterozygous carriers of the allele have some other advantage, such as resistance to disease or higher fertility, this could help to maintain the allele in the population even though the homozygous recessive individuals die. Additionally, if the population is small or isolated, genetic drift or founder effects could cause the allele frequency to fluctuate over time, leading to the persistence of the lethal allele.
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Nicotine replacement and self-management techniques are two approaches to smoking__________________.
What is the name of the method in which a smoker tries to avoid tempting situations and manages feelings that lead to nicotine use?
True or False Most people pick up smoking habits in adulthood.
Making sure your friends know you are tobacco-free and sticking to that decision in the face of pressures and influences requires ________________skills.
Critical Thinking Identify 5 health benefits of smoking cessation (stop smoking) that occur throughout the years after you quit, as well as those you see within a few days.
Can someone pls help me.
Answers
Answer:
It requires trolling your friends skills
Spirilla is what type of bacteria
Answers
Which of the types of cells in T. adhaerens contain cilia? (Choose all that apply)
gland cells
cylinder cells
fiber cells
cover cells
Answers
Answer:
Its Gland cells, Cylinder cells, and Cover cells
Explanation:
Cells like Gland cells, Cylinder cells, and Cover cells contains cilia in T. adhaerens.
What is T.adhaerens?Trichoplax adhaerens is one of the three named species in the phylum Placozoa. They have two cellular layers: the top epitheloid layer is made of ciliated (cover cells) flattened toward the outside of the organism, and the bottom layer is made up of cylinder cells that possess cilia used in locomotion, and gland cells that lack cilia.
Moreover, trichoplax generally has a thinly flattened, plate-like body in cross-section around half a millimetre, occasionally up to two or three millimetres. The body is usually only about 25 µm thick.
Therefore, these colorlessly gray organisms are so thin they are transparent when illuminated from behind, and in most cases are barely visible to the eye.
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Question 1 (1.5 points)
Why did environmental policies became essential as the US population began to
grow more quickly?
Answers
Environmental policies became essential as the US population began to
grow more quickly because as more individuals acted out of self respect rather than communal goods, resources began to be depleted and is denoted as option D.
What is a Policy?
This is referred to as a general guideline that is used as a basis for making decisions. There are different types of policies and in a country are usually passed by the government after meeting the requirements stated in the constitution.
Population and availability of resources have a direct relationship. As population began to increase, the need for resources began to increase also which is why there was the need for the provision of environmental policies so to make sure that there is no scarcity and makes it the correct choice.
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What are the two factors that determine the boundaries of a biome?.
Answers
Answer:
temperature and precipitation
10.
The potential energy available in a food chain (A) increases at each link in a
food chain. (B) decreases at each link in a food chain. (C) remains the same
throughout the food chain.
Answers
Answer:
B
Explanation:
plants have the most energy animals eat the plant and get less energy
Answer:
(B) Decreases
Explanation:
As the trophic levels (links) go higher and higher, less energy is available. The potential energy keeps getting lower and lower, decreasing.
Question one correct answer An electron micrograph shows a gall capillary. Indicate what formed its wall? O Cell membranes of adjacent hepatocytes O Cell membranes of adjacent acinar cells O Pit cells O Endotheliocytes O Hepatic stellate cells
Answers
An electron micrograph shows a gall capillary. The correct answer is: Endotheliocytes formed its wall. Option c.
What is a gall capillary?A gall capillary is a small vessel that forms part of the blood vessels in the liver. Endothelial cells are the cells that form its walls. The endothelium in the human body is made up of a layer of cells that line the inside of the heart, blood vessels, and lymphatic vessels. It functions as a selectively permeable barrier that regulates the movement of materials and cells between the bloodstream and the surrounding tissues. The liver endothelium also plays a role in hepatic function.
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To study water transport in their biology class , a group of students designed a lab in which they soaked decalcified eggs in different solutions and observed how water moved across the membrane of the cell . Which type of passive transport did the students observe ? *
A. Diffusion
B. Osmosis
C. Facilitated Diffusion
D. Active Transport
Answers
Which plant structures are common to all angiosperm? A.spores B.flowers C.cones D.endoskeleton
Answers
Answer:
b
Explanation:
how do i know because i got it right
Answer: B
Explanation: what he said
why is ""connective tissues"" an appropriate name for the types of tissues found in this class?
Answers
Connective tissues are an appropriate name for the types of tissues found in this class because they are responsible for connecting various types of tissues to each other.
They are also responsible for providing structural support to the body and protecting vital organs.
Some examples of connective tissues include bone, cartilage, adipose tissue, blood, and lymphatic tissue.
Connective tissues are the most abundant and diverse type of tissue found in the human body.
They are characterized by their ability to connect and support different types of tissues and organs.
They are made up of a network of cells and fibers that work together to provide strength, elasticity, and flexibility to the body.
Connective tissues are also responsible for producing and secreting various substances such as collagen, elastin, and glycosaminoglycans. These substances play an essential role in maintaining the structure and function of the body's organs and tissues.
Connective tissues are a vital component of the body's overall structure and function.
They play a crucial role in maintaining the body's physical integrity, providing support and protection to the organs, and ensuring that the various tissues of the body are connected and working together properly.
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Question 9 of 25
How does a cell's history affect the benes expressed by the cell?
OA. All of the genes contained in a cell must be expressed as soon as
the cell forms so it can differentiate.
OB. Internal and external conditions determine which genes are turned
on or off as the cell develops.
C. The genes that are turned on when a cell is developing are the only
genes that will be expressed during the cell's life.
D Refore a call dividae unnececean nongo are removed from ite
← PREVIOUS
Answers
Which genes are turned on or off as the cell develops depends on both internal and external factors. Genes regulation is a mechanism wherein the past of a cell can influence the genes that are produced by the cell.
How do cellular functions change as a result of a gene sequence?Proteins are controlled by genes, which determine how cells function. Thus, the millions of genes that are expressed in a certain cell determine the capabilities of that cell.
Why don't all of the genes in a cell's genome express themselves at once, only a subset of the genes that do?Additionally, because DNA must be unwound from its tightly coiled shape in order to be translated and transcribed, only a portion of the genes are expressed by each cell. This conserves space.
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Answer: B
Explanation:
in a testcross, if all the offspring show the dominant phenotype, then the individual with the unknown genotype was:
Answers
The homozygous dominant genotype will show all dominant offspring in test cross.
To as certain whether or not the dominant trait is heterozygous, a text cross between a person expressing a recessive trait and one exhibiting a dominant trait is performed. An individual expressing a dominant trait could have two copies of the dominant allele (homozygous dominant) or one copy of each dominant and recessive allele, according to the law of dominance in genetics (heterozygous dominant). A test cross can be used to ascertain whether a person is homozygous dominant or heterozygous dominant. An individual is bred with another who is homozygous for the recessive trait in a test cross, and the children of the test cross are then evaluated. The allele that the homozygous recessive person passes on determines the phenotype of the progeny because they can only transmit recessive alleles. Thus, this test has two potential outcomes:
Hence, test cross is used to determine genotype of offspring.
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PLEASE HELP - While walking in the woods one day,you come across A strange object. You decided to investigate the object to determine if it's a living organism or not.Explain the characteristics you would look for to determine if the object you found is a living organism.
Answers
Respond to stimulus-Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.)
Cells and cellular structure-A cell consists of three parts: the cell membrane, the nucleus, and, between the two, the cytoplasm. Within the cytoplasm lie intricate arrangements of fine fibers and hundreds or even thousands of miniscule but distinct structures called organelles.
Genetics-how traits are passed from parents to their offspring. The passing of traits from parents to offspring is known as heredity, therefore, genetics is the study of heredity.
Metabolism-the chemical reactions in the body's cells that change food into energy.
Homeostasis-the state of steady internal, physical, and chemical conditions maintained by living systems.
Adaption-the biological mechanism by which organisms adjust to new environments or to changes in their current environment.
Energy use
Regulation-The adaption of form or behaviour of an organism to changed conditions.
Order
Calvin steps into a pothole and twists his ankle at the bon- fire. He is in a great deal of pain and cannot stand on the ankle . In the hospital, the examining physician notes that Calvin plantar flex and dorsiflex the foot but cannot perform inversion without extreme pain. Explain what this means. What structure could he have injured?
Answers
Answer:
He sprained his ankle. The structures that he could have damaged are his ankle's ligaments.
Explanation:
Calvin twisted his ankle, which caused an ankle sprain. In an ankle sprain, the ligaments, which keep together the bones and contribute to the movement of or feet, are damaged. Depending on the severity of the sprain, the ligaments could be over-stretched or torn, causing pain when moving the feet.
What is the function of the hydrogen bonds?
Answers
Answer:
ambot
Explanation:
pag answer ug imo kay wla ko kabalo
Question 14 (2 points) The process of evolution that involves a change in the DNA sequence that leads to evolutionary change is called natural selection. O mutation. genetic drift. migration.
Answers
The process of evolution that involves a change in the DNA sequence that leads to evolutionary change is called a mutation.
A mutation is a sudden and lasting alteration in the DNA sequence that can influence genetic variation. Changes in the DNA sequence can influence phenotype, which may or may not have an effect on an organism's fitness. Mutations occur spontaneously, either from errors in DNA replication or from exposure to mutagenic agents. Mutations may happen in either coding or non-coding regions of the DNA, and they can be either silent or expressed.
Evolution is a natural process that results in the gradual change of inherited characteristics in populations over generations. It is the process of alteration in the inherited characteristics of species over successive generations. In other words, it is the process of gradual changes that happen to species over time as they adapt to their environments. It can be defined as a change in the gene frequency in a population over time.
Types of Evolution 1. Natural Selection 2. Genetic Drift 3. Gene Flow 4. Mutation 5. Non-Random Mating 6. Admixture 7. Mutation Pressure 8. Genetic Draft 9. Bottleneck and Founder Effect 10. Sexual Selection the process of evolution that involves a change in the DNA sequence that leads to evolutionary change is called a mutation.
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cystic fibrosis is a genetic disorder in humans where the person has two homozygous recessive alleles for the gene. if the disease is left untreated, it causes severe health problems in the individual. if 9 in 10,000 newborn babies have the disease, what are the expected frequencies of the dominant (a1) and recessive (a2) alleles according to the hardy-weinberg equation?
Answers
The expected frequencies of the dominant (A1) and recessive (A2) allele according to the Hardy-Weinberg equation are F(A1) = 0.97 and F(A2) = 0.03
According to Hardy Weinberg's law,
p+q = 1(p+q)² = 1p² + q² + 2pq =1with:
p2 = dominant homozygous allele genotype frequency.
2pq = heterozygous genotype frequency
q2 = homozygous recessive allele genotype frequency
Given that cystic fibrosis is a recessive genetic disorder, the frequency of the disease is 9/10,000.
q2 = 9/10000
q = √(9/10000)
q = 3/100
q = 0.03.
So, the genotype frequency of the recessive homozygous allele is (A2) = 0.03
And the dominant homozygous allele frequency is
f(A1) = 1- f(A2)
f(A1) = 1.00 - 0.03
f(A1) =0.97.
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James claims that he is biological father of Jane's son, Luke. James has blood type O. Jane has blood type A. Luke has blood type AB. Can James' claim be true? A) No, because James can only pass on i. However, Luke has IA and IB. B) Yes, because Luke could have inherited i from James. C) Yes, because Luke inherited IA from his mother.
Answers
James claims that he is the biological father of Jane's son, Luke is false. The correct option is A) No, because James can only pass on allele i. However, Luke has alleles IA and IB.
Blood group typesBlood types are genetically determined groups that determine the kind of antigens present on the surface of the red blood cells of an individual. There are four types of blood groups, they are A, B, AB, and O.
Inheritance of blood typesBlood types are inherited from one’s parents. The genetics of the blood types are determined by alleles. Each individual has two alleles that determine their blood type. One is inherited from their mother and the other from their father.
James has blood type O, which means that he has two ii alleles. Jane has blood type A, this means that she has two IA alleles. Luke has blood type AB, this means that he has one IA allele and one IB allele.
Therefore, James' claim cannot be true because Luke inherited the IA allele from Jane, which James could not have passed on as he only has the ii alleles. Hence, the correct answer is option A.
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Analyze the two cladograms. Which is the BEST description of these two cladograms?
a
Right cladogram has a different common ancestor for A and B
b
The cladograms show identical relationships, there is no difference between the two cladograms
c
Left cladogram has a different common ancestor for A, B and C.
d
The cladograms show different relationships
Answers
Explanation : I think it is B because a cladogram shows how species are related AND also shows the evolution between them.