how do blood vessels function to maintain body temperature on hot and cold day​

Answers

Answer 1

Answer:

Vasodilatation

Explanation:

The blood vessels under your skin get wider. This increases blood flow to your skin where it is cooler — away from your warm inner body. This lets your body release heat through heat radiation.

Answer 2

Answer:

on a hot day they vasodillate causing a lot of blood to flow near the skin surface thus losing heat by convection while voice versa during cold Temp


Related Questions

Based on the structure of proteins, how would you explain why Beau’s coat hair changed from straight to curly? Be your explanation describes what is happening at the molecular level to proteins

Answers

Beau’s coat hair changed from straight to curly because of Denaturation occurs.

What is happening at the molecular level to proteins?

When a chemical relaxer and heat are applied to curly hair, the protein present inside your hair gets denatured. Due to this denaturation of protein in the hair, the hair is soft and flexible which can be converted into any direction and different styles can be done. If a chemical perm or relaxer is applied to straight hairs, it also denatures the protein and make the hair curly.

Thus,  Denaturation occurs.

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is water losing through transpiration harmful or benefical for plant

Answers

Answer:

Beneficial. Read below

Explanation:

Water naturally does evaporate from the leaves. When it does, it makes a sort of suction in the 'pipes' of the plant. Think of it like when you drink from a cup with a straw. You take juice out from the straw by sucking it but that makes the juice still in the cup go up to replace that lost juice. This is how plants absorb water from the roots. If transpiration didn't happen, plants wouldn't be able to absorb water apart from osmosis but that would be too slow.

how many ATP molecules are produced from the breakdown of fatty acids ​

Answers

The answer is 129 ATP molecules

what are the effects of anaemia

Answers

Answer:

Irregular heartbeat. Heart Failure. Fatal. The body does not get "oxygen-rich" blood. May feel tired or weak. Shortness of breath, dizziness, headaches. Blood loss, lack of red blood cell production, and high rates of red blood cell destruction

Explanation:

When you're anemic your heart pumps more blood to make up for the lack of oxygen in the blood. This can lead to an enlarged heart or heart failure.  

picture has the question thank you !

Answers

Answer:

B

C

D

A

Explanation:

yw :)

Answer:

urea = principal nitrogenous waste in humans (b)

nephron = the basic functional unit of the kidney

solute = a dissolved substance

ureter = a vessel that carries urine from the kidney to the bladder

hope this helps!! :)

Which of the following is not a natural hazard?

a
Pollution

b
Landslides

c
Earthquakes

d
Coastal erosion

Answers

Answer:

A.) Pollution

Explanation:

Pollution is not a natural hazard because pollution is mostly created by humans. For the most part, landslides, earthquakes, and coastal erosion are disasters which occur naturally. In other words, humans generally don't cause these hazards, but they are the main contributor to pollution.

A. Pollution because pollution is from humans

Which of the following best describes a characteristic of fungi that differentiates them from bacteria?

Fungi are eukaryotes, while bacteria are prokaryotes.
Bacteria are heterotrophs, while fungi are autotrophs.
Bacteria have gametangia, while fungi do not.
Fungi have cell walls, while bacteria do not.

Answers

Bacteria are primitive unicellular organisms. Fungi are more complex, evolved, multicellular organisms. Option A). Fungi are eukaryotes, while bacteria are prokaryotes.

What are the characteristics of fungi?

Fungi is a group composed of eukaryotic organisms, among which we can find several species. They are multicellular organisms, and their cells have organelles, nucleus, cell membrane, and wall.

Let us review some common characteristics,

They are heterotrophic organisms, meaning they take energy and nutrients from other organisms. They do not produce it.

Their cell wall is composed of chitin which helps to avoid dehydration.

They reproduce either sёxually or asёxually. They produce spores in special structures known as asks.

Their structure is complex and composed of the mycelium and the fructiferous body.

Fungi are important to the ecosystem because they are one of the principal organic matter decomposers. But they are also significant for different human uses.

What are the characteristics of bacteria?

The bacteria domain is composed of a wide group of unicellular prokaryotic microorganisms with a simple structure and sized between 1 to 10 micrometers.

These organisms lack a nucleus, nuclear membrane, and organelles. They only present plasmids and ribosomes. They have a cell membrane and a cell wall that protects the cell. Some of them can also present a capsule.

They reproduce asexually and are either autotrophs and heterotrophs.

Options,

A) Fungi are eukaryotes, while bacteria are prokaryotes. TRUE

B) Bacteria are heterotrophs, while fungi are autotrophs. FALSE. Bacteria can be both, while fungi is heterotroph.

C) Bacteria have gametangia, while fungi do not. FALSE. Bacteria reproduces asexually.

D) Fungi have cell walls, while bacteria do not. FALSE. Bothe of them have cell walls.

The correct option is A). Fungi are eukaryotes, while bacteria are prokaryotes.

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Which of the following is not a condition required for all thunderstorms to
form?

A. Moisture in the lower- to mid-levels of the atmosphere

B. A rotating updraft, or supercell

C. Unstable air

D. A lifting force

Answers

B. A rotating updraft, or supercell

what type of microscope creates a two dimensional image

Answers

the answer is a COMPOUND MICROSCOPE.
Compound microscopes are illuminated. the image seen with this type of microscope is two dimensional.

Use the codon table below to analyze a segment of mRNA with the base sequence
GGU AGC CGG.

A. Gly-Ser-Arg
B. Val-Thr-Ala
C. Pro-Ser-Ala
D. Glu-Thr-Arg

Which amino acid chain will these codons form?

Answers

The mRNA sequence GGU AGC CGG encodes the amino acid sequence Gly-Ser-Arg (Option A).

What is the genetic code?

The genetic code makes reference to the linear order of DNA/RNA nucleotides in codons that specify different amino acids.

The genetic code starts in DNA to be transcribed to mRNA and finally translated into protein sequences.

In conclusion, the mRNA sequence GGU AGC CGG encodes the amino acid sequence Gly-Ser-Arg (Option A).

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Two neurons are shown below. In the drawing, label an axon, a dendrite, and a nucleus as well as a synapse

Answers

A neuron may be defined as the rudimentary unit of the brain and nervous system. The nerve cells are composed of a structure of neurons that transmits and acquire signals from your brain.

What are the parts of a Neuron?

Neurons have the following parts each with definite functions:

Axon: It conducts electrical impulses to other neurons. Dendrites: They transfer the received information to the soma or cell body of a neuron. Nucleus: A central part of the soma consists of a nucleus. Synapse: It transmits the nerve impulse between two successive nerve cells.

The various thread-like projections are dendrites, a long thin slender structure known as Axon, while the terminal spherical structure constitutes the synapse, and the central part within the cell body or soma is known as the nucleus.

Therefore, it is well described above.

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The shape of a child's nose may resemble that of the of the mother due to A .heredity B. similarity C. reflection D. familiarity​

Answers

The correct answer is A. Heredity

During which phase of meiosis do spindle fibers move the sister chromatids to the center of the cells?
interphase
anaphase II
prophase I
metaphase II

Answers

Answer:

Metaphase II

Explanation:

During metaphase, the spindle fibers move the chromatids to the center (creates what is known as metaphase plate) to that they can be separated.

Hope this helps :)

Question 1
Write words or phrases that take the word nature down to three levels of abstraction.

Answers

intangible qualities ideasconcepts

phrases words refer to intangible qualities, ideas, and concepts. These words indicate things we know only through our intellect, like "truth," "honor," "kindness," and "grace."

Describe the features of the respiratory epithelium and explain in terms of physiology how they protect the lung.

Answers

The essential roles including barrier protection, fluid balance, the release of particulate, initiation of immune responses, mucus and surfactant exhibit, and repair following injury.

What is respiration?

Inhalation:

On inhalation, the pressure in the alveoli is high, hence the Oxygen diffuses to the nearby blood through the membrane.

Exhalation:

It is the process in which a person releases the air collected in the lung. During exhalation, the pressure in the alveoli is low, hence the carbon dioxide present in the blood is diffused out into the alveoli.

Therefore, the expandable structure of alveoli helps the respiratory system to follow its function.  

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is water losing through transpiration harmful or benefical for plant

Answers

i would say harmful for the plant

ubiquitin attaches to proteins via many biochemical reactions, please explain how this attachment targets protein for degradation and describe the biochemical reactions.

Answers

The ubiquitin attaches to proteins via many biochemical reactions, and targets the protein for degradation.

Which residue of goal protein attaches with ubiquitin?

Ubiquitylation includes ubiquitin conjugation to a lysine residue of a goal protein or to an already-sure ubiquitin molecule, thereby forming a branching structure. This amendment can serve to goal the protein for degradation with the aid of using the 26S proteasome if the more than one ubiquitin molecules are conjugated with the aid of using lysine-48.

Proteins are marked for degradation with the aid of using the attachment of ubiquitin to the amino organization of the facet chain of a lysine residue. Additional ubiquitins are then delivered to shape a multiubiquitin chain. Such polyubiquitinated proteins are identified and degraded with the aid of using a large, multisubunit protease complex, known as the proteasome.

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Given the following crosses give the outcome. What can be the blood types of their children.

Type AB blood x type 0 blood

Answers

Answer:

For this question, you have to draw a punnet square

Explanation:      

               A              B

i              Ai              Bi

i               Ai              Bi

For AB blood type, one parent can give either an A or a B. For the other parent because they are 0 blood type that means that they are negative for both factors.

For someone who would be A, they could be AA or Ai( but that is irrelevant for this question)

The i reffers to no antigen markers, it is kind of just a placeholder. You could have written (O,O) instead

How would a system of naming help Darwin create a unifying theory of evolution?​

Answers

It will be better for the population

What evaluation plan can be done to measure the effectiveness of utilizing low air loss mattresses for patients in nursing homes. Provide the following criteria, making sure your evaluation plan is comprehensive and concise:

Propose evaluation methods to evaluate the implementation of your evidence-based intervention. Describe the methods selected and provide rationale and support for why the proposed methods are best for the collection of outcome data.
Describe how the proposed evaluation methods will measure whether the project objectives are achieved. Explain how the outcomes will be measured and evaluated based on the evidence. Address validity, reliability, and applicability.
Describe strategies to take if outcomes do not provide positive results.
Discuss implications for practice and future research.

Answers

The evaluation method to evaluate the implementation of the evidence-based intervention is the integration of the evidence with clinical expertise.

What is an evaluation plan?

An evaluation plan simply means a written document that describes how to evaluate and monitor a program.

Low air loss mattresses can be used for both the prevention and treatment of pressure wounds, and are well suited to any patients susceptible to these events such as those who are immobilized or lack adequate sensory perception.

Findings support the expanded use of this technology for patients with mild pressure ulcers and good healing characteristics. For these patients, the cost-effectiveness of low-air-loss beds is comparable to other accepted health treatments.

For patients with severe ulcers and poor healing characteristics, low-air-loss bed cost-effectiveness compares poorly with other accepted health treatments unless the lease cost can be substantially reduced, or unless life with a pressure ulcer is valued close to death.

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The offspring of a black cat and a white cat is a gray cat. It has the genotype BW. B is black and W is white.

If a black cat mates with a gray cat, the chance the offspring will be white is
percent.

Answers

When a black cat (BB) mates with a gray cat (BW), the chance the offspring will be white is 0% (zero).

What is Genotype?

Genotype may be defined as the ultimate combination of alleles of those genes which are selected for specific studies.

When a black cat (BB) mates with a gray cat (BW), it produces offspring with the genotypes BB, BW, BB, and BW. None of them are WW (white).

The Punnett square of the given cross is illustrated below:

Therefore, it is well described above.

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HURRYYYYYYY PLEASEEEE
Curate a collection of diagrams and photographs that illustrate the structure and makeup of DNA, as well as its location in the cell. Then, research a method of using isopropyl alcohol and a liquid detergent in order to extract and observe your own DNA. Photograph your results and add the labeled photographs to your digital DNA gallery.

Answers

The isopropyl method of DNA extraction is a lab based technique hence the pictures and results cannot be provided here. The DNA structure consists of a sugar phosphate backbone and a nucleotide base.

The double helix shape of DNA, a two-stranded molecule that seems to be twisted, is what differentiates it from other molecules. Each of the two strands is made up of a phosphate molecule and a lengthy series of nucleotides. a five-carbon sugar molecule known as deoxyribose. a region rich in nitrogen.The majority of DNA is found in the cell nucleus (where it is known as nuclear DNA), but there is also a tiny quantity of DNA in the mitochondria (where it is called mitochondrial DNA or mtDNA).Cellular organelles called mitochondria transform the energy from food into a form that cells can utilize.

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let's suppose the number of frogs is too much in pond. what kind of imbalance can be observed​

Answers

Frogs will start devouring fish if there are too many of them in the pond and not enough food sources for them.

What is pond ecosystem?

A freshwater ecosystem called a pond is made up of groups of species that depend on one another and the surrounding water environment for nutrients and survival.

Garden can take on a new dimension with the addition of a pond or a container planted with aquatic plants like water lilies. Additionally, it might give your property a completely new depth by bringing in a variety of creatures, especially frogs.

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The rapid acceleration of globalization has also increased the amount of international migration. Sanderson’s results from a cross-national study indicated that:
Group of answer choices

international migration increases overall levels of human development

international migration increases a country’s Gross Domestic Product (GDP)

international migration decreases overall levels of human development

international migration decreases a country’s Gross Domestic Product (GDP)

Answers

Sanderson's cross-national study indicated that international migration increases overall levels of human development. Thus, the correct option is A.

What is Migration?

Migration may be defined as the movement of people from one place to another in search of resources better than their native one.

International migration increases the overall standards of human development because it initiates new opportunities and trade aspects of people of one country to another.

It also leads to improved human development outcomes in major areas like education, health, and finance.

Therefore, the correct option for this question is A.

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Mitigating Human impact

Answers

Answer:

recycling. During the recycling process types of materials like plastic, glass, or aluminum are melted down and then reformed into new materials.

Some materials can be recycled many times, keeping them out of the landfill for a lifetime. About 75% of all aluminum produced in the United States is still in circulation today. Glass can be continuously recycled forever, being melted down and reformed into new materials.However, certain types of plastics such as PET are recycled into clothing, which cannot be further recycled. Thus, it's advisable to use plastics and dispose of them in moderation to limit the effect of this human activity on the Earth.

Look at least two molecules diagrams and think about the features of compounds.

Answers

Answer:

---> are isomers of each other

---> have same molecular formula

---> are both hydrocarbons

---> have same number of each kind of atom

Explanation:

Isomers with the same molecular formula.  The molecular formula gives a list of the type and quantity of each element in a molecule.

In other words, they are two different molecules with the same type and amount of atoms. The difference is that their structures are different. That being said, the structural formula of the molecules would not be the same. Hydrocarbons are molecules that only consist of carbon (C) and hydrogen (H) atoms.

EXPERIMENT 1: PUNNETT SQUARE CROSSES Part 1: Post-Lab Questions 1. Set up and complete Punnett squares for these crosses (remember Y = yellow, y = blue): a. YY and Yy b. YY and yy 2. Answer these questions: a. What are the resulting phenotypes? b. Are there any blue kernels? c. How can you tell whether or not there are blue kernels? 3. Set up and complete a Punnett square for a cross of two of the F1 from Step 1 (above). 4. Answer these questions: a. What are the genotypes of the F2 generation? b. What are their phenotypes? c. Are there more or fewer blue kernels than in the F1 generation? 5. Identify the four possible gametes produced by the following individuals (S = smooth, s = wrinkled): a. YY Ss: b. Yy Ss:

Answers

Punnett squares are used to get the genotypic and phenotypic frequencies among the progeny produced from a cross. Punnett squares and answers below.

What is a punnett square?

The Punnett square is a graphic representation that shows the different types of gamete combinations according to the alleles involved in a cross.

Punnett square shows the probabilities of getting offspring with different genotypes and their consequent phenotypes.

In the exposed example,

Diallelic genes that codes for colorY = yellow ⇒ dominant alleley = blue ⇒ recessive allele

We will assume complete dominance, meaning that with at least one dominant allele in the genotype, the expressed color is yellow.

1)

a- Cross 1

Parentals)   YY   x    Yy

Gametes) Y   Y      Y   y

Punnett square)      Y        Y

                        Y     YY      YY

                         y     Yy      Yy

F1) Genotype

1/2 = 50% of the progeny is expected to be homozygous dominant, YY

1/2 = 50% of the progeny is expected to be heterozygous, Yy

   

    Phenotype

100% of the progeny is expected to be yellow.

b- Cross 2

Parentals)  YY   x    yy

Gametes) Y     Y     y    y

Punnett square)      Y        Y

                        y     Yy     Yy

                         y    Yy      Yy

F1) Genotype

100% of the progeny is expected to be heterozygous, Yy

   

    Phenotype

100% of the progeny is expected to be yellow.

2)

a. What are the resulting phenotypes? Only yellow kernels

b. Are there any blue kernels? No

c. How can you tell whether or not there are blue kernels?

Blue is the recessive phenotype for kernels. Assuming complete dominance, since all genotypes are expected to carry at least one dominant allele, all the F1 kernels are yellow.  

3) Let us cross two heterozygous individuals from the F1

Parentals)  Yy   x    Yy

Gametes) Y    y     Y    y

Punnett square)     Y        y

                        Y    YY     Yy

                         y    Yy      yy

F1) Genotype

1/4 = 25% of the progeny is expected to be homozygous dominant, YY

1/2 = 50% of the progeny is expected to be heterozygous, Yy

1/4 = 25% of the progeny is expected to be homozygous recessive, yy    

    Phenotype

75% of the progeny is expected to be yellow.

25% of the progeny is expected to be blue.

4)

a. What are the genotypes of the F2 generation?

- 25% YY (homozygous dominant)

- 50% Yy (Heterozygous)

- 25% yy (Homozygous recessive)

b. What are their phenotypes?

- 75% yellow kernels

- 25% blue kernels

c. Are there more or fewer blue kernels than in the F1 generation?

More. Blue kernels appeared in the F2.

5. Assuming independent genes, the , are as follows

                         Gametes

a. YY Ss   ⇒   YS, YS, Ys, Ys

b. Yy Ss  ⇒     YS, Ys, yS, ys

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As many as
300
350
400
450
eggs are released during a woman's reproductive years.

Answers

300 is the answer!!!!!!

Which of these groups is the smallest level of classification?
A. Class
B. Order
C. Phylum
D. Family

Answers

Family. - The Hierarchical system in greatest to least is Kingdom, Phylum, Class, Order, Family, Genus, Species.

HELP PLEASE I WILL GIVE BRAINLIEST AND THANKS

True breeding domesticated Hens with white feathers and large, single head combs mate with roosters that are true-breeding for dark feathers and small combs. The offspring all resemble their mothers (hens) for these two traits.

a. Which alleles of each trait are dominant, and which are recessive?
b. if the F1 are crossed with each other, what percentage of the F2 would be expected to have dark feathers and long single combs?

Answers

(a) The alleles of white feathers and that of single-head combs are dominant while that of the dark feathers and small combs are recessive.

(b) 1/16 or 6.25%

Dihybrid crossing

Since all the offspring resemble their mother, it means the alleles that make up the traits of the mother are dominant over that of the father.

Assuming that:

Feathers color = F/f

Comb type = C/c

Genotype of mother = FFCC

Genotype of father = ffcc

                                    FFCC   x   ffcc

                                            FfCc

Crossing:          FfCc    x    FfCc

Progeny

F_C_ = 9/16

ffC_ = 3/16

F_cc = 3/16

ffcc = 1/16

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Other Questions
An aggregate function is _____. A. a function that calculates a statistic such as a subtotal or average B. a mathematical expression, such as [Qty]*[UnitsSold] C. a way to group records, such as by state or postal code D. a way to test the accuracy of data Some people took part in a game. The frequency shows information about their scores. Score Frequency 1 - 7 13 8 - 10 14 11 - 15 18 16 - 20 6 21 - 35 13 36 - 50 19 Estimate the mean. Give your answer rounded to 2 decimal places. Which feature on a cisco router permits the forwarding of traffic for which there is no specific route? A sample of 50 11th graders were asked to select a favorite pattern out of 6 choices. The data list below shows what their favorite color patterns were, and the accompanying frequency table and bar graph represent these data. In the bar graph, the height of the blue-gray bar is 4, the height of the green bar is 9, and so on.Suppose that, rather than being just a bar graph, the display you see above is a relative frequency bar graph. The vertical axis of the graph will be marked off in percentages, from 0 percent up to 30 percent. What will be the height of the green bar?A.15B.25C.9D.18 What value of k transforms the graph of f(x)=0.5x+3 into graph g? Describe the transformation.for 7, 8, and 9 Which historical event shaped President Wilson's point of view?the outcome of the Spanish-American Warthe building of the Panama Canalthe enactment of the Neutrality Actsthe fighting in World War I A 50-kg block is at rest on a 15o slope. A force of 250 N is acting on the block up the slope parallel to it. If the block does not slide up the slope, what is the minimum value of the coefficient of static friction between the block and the slope Explain the irony of the 'sensible everyday names' which arementioned in Text 12G.Think of some male and female cat names which are: 'sensible 'fancier' 'peculiar'.With a partner, discuss the eleven aspects of the poem in Text 12Glisted below. First copy out the table so that you can make notes ofyour comments and collect examples of each aspect.CommentExampleAspectvoicepersonaregisteraudienceformrhymerhythmmetrecapitalisationvocabularynonsense word which relation represents a fuction I need help with this. Picture is above and the questions are 1. Which cancer type is most common? Least common?2. Which cancer type seems to be least treatable? Most treatable?3. Provide a possible explanation as to why the incidence of basal and squamous skin cancer is so high.4. Using breast cancer as an example, calculate the percentage of survival for this cancer type. A preschool-age child has just been admitted to the pediatric unit with a diagnosis of bacterial meningitis. The nurse would include which recommendation in the nursing plan? The __________ Greek leader Achilles was killed.a. resoluteb. inspiringc. headstrong you are executing an indirect activity allocation. what do you post to the sender and receiver? hello guys, can you give me the answers Which of the following transitional words or phrases should be used to conclude?a.Althoughc.Thereforeb.Consequentlyd.all of the above Carlos had at most 7 hours to spend in an amusement park in which he uses 1 hour for lunch and the rest of the time on park rides. What is the maximum number of rides Carlos can comete if each ride takes 15 minutes? Helen has 48 cubic inches of clay to make a solid square right pyramid with a base edge measuring 6 inches. a solid right pyramid with a square base has a base edge measuring 6 inches. which is the slant height of the pyramid if helen uses all the clay? One number is six times another number. Determine the two numbers if the sum of their reciprocals is 7/24. A triangle has points monkeys, giraffes, lions. The distance between lions and monkeys is 11 feet and monkey and giraffes is 16 feet. The distance between lions and giraffes is the hypotenuse of x feet.Which equations will find the distance between the lions and giraffes? Select all that apply.11+16 = c112+ 162 = c2c2+ 162 = 112121+ 256 = c2 In a casual italian restaurant, sales for the week of september 15 are as follows: food sales: $10.000 beverage sales: $ 2.500 total $12.500 a. if the food cost is 30 percent, how much did the food actually cost? b. if the beverage cost is 25 percent of beverage sales, how much did the beverages cost?