Valves in veins are formed of the tunica media. cause venous blood flow to go in only one direction. are found only in the largest veins. make the use of a skeletal muscle pump unnecessary for venous blood flow. are the leading cause of high blood pressure.

Answers

Answer 1

Answer:

they get larger.

Explanation:


Related Questions

When you eat, your blood glucose level rises. Soon after, it drops as the glucose is stored. Where does it go?

Answers

Explanation:

About to six hours after you eat the glucose levels in your blood decrease triggering your pancreas to produce glucagon. This hormone signals. your liver and muscle cells to change the stored glycogen back into glucose.

Which phrase describes a feature of an earthquake’s epicenter?

starting point of an earthquake
place around the center of an earthquake
region directly above the focus
point about 100 kilometers deep in the lithosphere

Answers

Answer:

It is answer c

Explanation:

i know this because The epicenter is directly above the earthquake's hypocenter (also called the focus)

The phrase which describes a feature of an earthquake’s epicenter is: C. region directly above the focus.

An earthquake can be defined as a sudden, natural shaking of the ground, as a result of movements within the Earth's crust and upper mantle (lithosphere) that typically creates seismic waves.

An epicenter is the point on the surface of planet Earth, which is perpendicular to the hypocenter (focus) and it indicates where the seismic waves from an earthquake are most intense.

On a map, an earthquake’s epicenter is located at the point where the three (3) circles intersect because earthquake are generally shallow.

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Which describes one characteristic of both El Niño and La Niña?

Both are causes of long-term climate change.
Both create warmer water.
Both occur in the Pacific Ocean.
Both are causes of hurricane activity.

Answers

Answer:

Both occur in the Pacific Ocean.

Explanation:

El Niño and La Niña are opposite phases of a natural climate pattern across the tropical Pacific Ocean that swings back and forth every 3-7 years on average

Answer:c

Explanation:

how can we improve crop production​

Answers

Answer:

Improve Soil, Increase Crop Yield to increase crop yield, start from the ground up. Testing soils. Plant Early, Plant Effectively. Practice Seasonal Soil Rotation

Answer: Plant Early,Practice Seasonal Soil Rotation,

Always Scout Your Fields......and soo one

Explanation: hope this helpes :)

Which is least likely to be impacted by runoff from a factory? A) river B) groundwater C) lake D) ocean

Answers

Answer:

Groundwater

Explanation:

The factories mostly need large quantities of water to carry out their production precesses, however, as well as they need natural recources for their operation, they also dispose of them and a large part of the environmental contamination is due to the release of substances emitted by these. It´s very easy for toxic waste to contaminate rivers, lakes and aceans. Groundwater on the other hand is more complicated to contaminate because it´s found in aquifers below the surface of the arth, making by these factories to reach these places; althouh not impossible.

dromedary, camel, alpaca, vicuña, guanaco, llama, which species are most similar to each other? what is this about?

Answers

Answer:

Alpaca and llama are the most similar

Explanation:

An alpaca is a mix of a donkey and llama so alpaca and llama are the most similar.

The countercurrent multiplier is a system by which the:______.
a. nephron loop multiplies the concentration of salts in the interstitial fluid of the kidney medulla.
b. nephron loop dilutes the concentration of solutes in the tubular fluid at its hairpin turn.
c. vasa recta secretes multiple amounts of metabolic wastes against their concentration gradient.
d. vasa recta becomes more concentrated with nitrogenous wastes than the urine.

Answers

Answer: Option A.

nephron loop multiplies the concentration of salts in the interstitial fluid of the kidney medulla.

Explanation:

countercurrent multiplier is a system that utilize energy that create osmotic gradients and enable reabsorption of water thereby increase concentration of urine. The countercurrent multiplier uses electrolyte pumps there by making the nephron loop increase the concentration of salts in the interstitial fluid of the kidney medulla because it allows the nephron to reabsorb alot of water and and increase the concentration of urine for excretion while at the same time using as little energy as possible.

Which of the following best expresses the concept of natural selection?
A) differential reproductive success based on inherited traits
B) inheritance of acquired characteristics
C) change in response to need
D) a process of constant improvement, leading eventually to perfection
E) survival of the fastest

Answers

Answer:

The correct answer is - option A. differential reproductive success based on inherited traits

Explanation:

Natural selection is the differential reproductive and survival of particular population due to the difference of shared characteristics that are inherited in a specific environment. In other words natural selection is differential reproductive success based on inherited traits.

The term differential reproductive success is suggests that comparing and analyzing successful reproduction rates between groups statistically which means how many individuals of the population left behind due to not inheriting traits require for survival.

Thus, the correct answer is - option A. differential reproductive success based on inherited traits

Due to genetic changes and the environmental conditions when the organism adapts itself to the current situation for survival is called natural selection.

Natural selection means that the organism that survived over another have better traits and characteristics for adaptation.

The correct answer is:

Option A. differential reproductive success based on inherited traits.

This can be explained as:

A particular type of trait carried by an organism that is better for adapting to survival than the other organism carrying less favorable trait will have a better chance of survival and their reproductive success will be much higher.

Based on the inherited characteristics the natural selection will be based on reproductive success.

Differential reproductive success is an analysis in which comparison is done among the organism that survived and those that did not.

Comparing their traits and characters can give an idea about the factor affecting the selection.

Therefore, differential reproductive success based on inherited traits best expresses natural selection.

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A researcher interested in the disappearance of fallen leaves in a deciduous forest carried out a field experiment that lasted nearly a year. She collected all the leaves from 100 plots scattered throughout the forest. She measured the amount of leaves present in November, May and August. The percentages reflect the number of leaves found, using the November values as 100 percent.

Answers

Answer:

Elm:    50 %; 1 %

Hazel: 69 %; 4 %  

Explanation:

Assume the table looked like this.

[tex]\begin{array}{crrr}\textbf{Month} & \textbf{Ash} & \textbf{Elm} &\textbf{Hazel}\\\text{Nov} &\text{4271 g}& \text{3481 g} & \text{1723 g}\\ & 100\, \% & 100\, \%&100\, \%\\\text{May} & \text{2431 g} & \text{1739 g} & \text{501 g}\\& 100\, \% & x \, \% &z \, \%\\ \text{Aug} & \text{1376 g} &\text{35 g} & \text{62 g}\\& 100\, \% & y \, \% & w \, \%\\\end{array}[/tex]

To get the percentages for each species for May and August, you divide that month's mass by the November mass and multiply by 100.

[tex]x = \dfrac{\text{1739 g}}{\text{3481 g}} \times 100 \, \% =50 \,\%\\\\y = \dfrac{\text{35 g}}{\text{3481 g}} \times 100 \, \% = 1 \,\%\\\\z = \dfrac{\text{501 g}}{\text{1723 g}} \times 100 \, \% = 69 \,\%\\\\w = \dfrac{\text{62 g}}{\text{1723 g}} \times 100 \, \% = 4 \,\%\\\\[/tex]

The figure below shows the graphs for ash and elm.

How many core biosafety work practices (or do's and don'ts) are there, according to the National Research Council’s book entitled, Prudent Practices for the Handling and Disposal of Infectious Materials?

Answers

Answer:

seven

Explanation:

There are seven biosafety practices which should be followed during the Handling and Disposal of Infectious Materials. These biosafety practices were made by the scientists in order to reduce the chances of contamination of worker who deals with the handling and disposal of Infectious or toxic materials. If these seven biosafety practices were not followed by the workers so there is high chances of infection which leads to their death.

What are the functions of SER

Answers

Answere1SER helps in the manufacture of fat molecules or  lipids

2It plays a critical role in detoxifying many poisons and drugs in the liver

Answer:

SER (Smooth Endoplasmic Reticulum) produces and exports lipids and protein, and SER functions for detoxication. It is concerned with carrying out certain metabolic processes.

a) Name the structures that: i) Carry water and mineral salts to the leaf ii) Prevents too much water loss from the upper surface of the leaf iii) Opens to allow gases to pass into and out of the leaf iv) Is the site for most of the photosynthesis taking place v) Is the layer where light is able to pass through directly b) How does a leaf protect itself from unwanted intruders like bacteria from getting in and stopping important reactants from going out? PLEASE ANSWERR

Answers

Answer:

a) i) Xylem

   ii) Upper epidermis  

   iii) Stoma

   iv) Chroloplast  

   v) Palisade cell layer

b) By a waxy layer on the cuticle of the leaf

Explanation:

The plant's leaves have a large surface area that is capable of absorbing sunlight. The plant's waxy layer in the surface of the leaf protects it from the loss of water, as well as of diseases caused by the entry of microorganisms. The palisade cell's surface is a single layer of cells underneath the upper epidermis that is adapted to absorb light energy.

The waxy layer is a primary physical barrier composed of insoluble polymers and lipids whose function is to protect the leaves against the entry of harmful organisms including virus, bacteria and fungus. Moreover, the plant's waxy cuticle is also a barrier that prevents the loss of water and solutes.

Answer:

luisvaschetto is right!!!!!!! i got a 100.

Which of the following are likely impacts of
overfishing?

-The populations of higher order consumers decrease

-Oxygen dissolved in sea water decreases

-The biodiversity of the ecosystem decreases

-Large numbers of producers are removed from the
ecosystem​

Answers

Answer:

-The populations of higher order consumers decrease

Explanation:

More fish are being killed meaning less food for consumers which means that tertiary consumers will be left with less food. One small problem can have a devastating effect.

The theater sold 562 tickets to the concert at a price of $6 each. Use the distributive property to find the product of 6 × 562. 6(562) = 6(500) + (60)(2) = 3,120

Answers

Answer:

1,897,087=1,900,207.2=3,120 (the equasion you gave when distributed)

Answer to the question(Money made): ($)3,372

Explanation:

solved it out by multiplying

Answer:

Answer to the question(Money made): ($)3,372

Explanation:

match the boinomial of some common level local organisams from a two coulmn list on the basis of generic and specific name

Answers

Explanation:

human being : Homo sapiens

dog: Canis familiaris

house fly: Musca domesticated

domestic cat: Felis domesticus

maize: Zea Mays

Bean: Phaseolus vulgaris

lion : Panthera leo

honey bee: Apis mellifera

Which is an example of an idiosyncratic reaction?
a. Nausea after taking an antibiotic agent
b. Excitement and agitation after taking a sedative
c. Increased clotting time after taking heparin
d. Sedation after taking a sleeping pill

Answers

Answer ; A

Idiosyncratic reactions are unpredictable and not explained by the pharmacologic properties of the drug. An example is the individual with infectious mononucleosis who develops a rash when given ampicillin.

Definition. Idiosyncratic drug reactions are adverse drug reactions that do not occur in most patients at any dose and do not involve the known pharmacological properties of the drug.

hope this help

Where do I can find a white deer in far cry primal

Answers

Try to find a flock of deers and look for a golden trace around them. If you see it follow it and it will lead you to a rare white deer or rare animal

Match the name of the greenhouse gas with one of the human activities that produces it.
carbon dioxide
industrial processes
fluorinated gases
agricultural and industrial activities
methane
production and transport of oil and natural
gas
nitrous oxide
burning fossil fuels

Answers

Answer:

carbon dioxide- burning of fossil fuels

fluorinated gases- industrial processes

methane- production and transport of oil and natural

gas

nitrous oxide- agricultural and industrial activities

Explanation:

Greenhouse gases are gaseous components that induces greenhouse effect. This means that due to their structural ability to trap heat energy in the atmosphere, they contribute to the global warming effect on the Earth. However, this greenhouse gases are produced in large amounts as a result of the day-to-day anthropogenic activities. The following are the greenhouse gases and how they are produced.

Carbondioxide (CO2)- Carbondioxide is the most common and important greenhouse gas. It is generated via natural processes like respiration but also produced when fossil fuels e.g coal, petroleum etc. are burned.

Fluorinated gases- This is another greenhouse gas caused by activities of man. Fluorinated gases are produced in industries during the production of certain products.

Methane- Methane is a gaseous hydrocarbon and the principal constituent of natural gas. Therefore, the production and transportation of oil and natural gases can lead to the escape of methane into the atmosphere.

Nitrous oxide- Nitrous oxide is an oxide of nitrogen. It is mainly produced via agricultural processes such as nitrification and denitrification or use of fertilizers etc. and also industrial actions.

Answer:answer in pic

Explanation:

Which of the following is an example of adaptive radiation? One population of squirrels becomes two separate species over a long time. One population of lizards forms 15 separate species over a short time. One species of birds becomes better suited to its environment over time. One species of fish forms when two species of fish begin to breed with each other.

Answers

Answer:

B. One population of lizards leads to 15 separate species over a short time.

Explanation:

Adaptive radiation is a process in which organisms diversify rapidly into a multitude of new forms, particularly when a change in the environment makes new resources available, creates new challenges and opens environmental niches.

Adaptive radiation occurs when a single ancestral species diversifies into a variety of different species, each with different adaptations to fit different ecological niches.

When does the adaptive radiation occur ?

This often occurs when a group of organisms colonizes a new, relatively unexploited environment, and the different ecological niches available in that environment drive the evolution of different adaptations in different subgroups.

The example of one population of lizards forming 15 separate species over a short time is a classic example of adaptive radiation. In this case, the ancestral population of lizards likely colonized a new area with many different ecological niches.

Over time, different subgroups of lizards evolved adaptations that allowed them to exploit these niches in different ways, leading to the diversification of the group into many different species.

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The single most important feature to consider when purchasing a scuba regulator is: How well it performs in controlled laboratory testing. A second-stage adjustment knob to ensure ease of breathing. The availability of regular, professional maintenance. Both the first and second answers are correct.

Answers

Answer:

A diving regulator is a pressure regulator that reduces the pressure of gas in the tank and deliver it to the diver so that he/she can breathe easily. It must pass the controlled laboratory testing and must have a second adjustment knob to ensure ease of breathing. Modern regulators are precision made and designed to work under demanding conditions. 1st stage and 2nd stage, diaphragm and piston, exhaust valve and purge button are types of diving regulators.

A scuba regulator is a pressure regulator that lowers the gas pressure in the cylinder and supplies it to the diver, making it easier for the diver to breathe. A second adjustment knob is needed to pass controlled laboratory tests and facilitate breathing. Modern regulators are precisely designed and designed for use in harsh conditions. The first and second stages, diaphragm and piston, exhaust valve, and flush button are a type of regulators.

What does the regulator do?

The regulator is an excellent invention that provides exactly the air needed for breathing from the scuba tank. The regulator is the focus of the scuba gear and connects the scuba tank to BC, scuba pressure gauge (SPG), alternative air sources, and many other devices.

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Consider this animal cell.

The organelles in an animal cell are labeled. Part F is a network of hollow tubes, flattened sheets, and round sacs.

What is the function of the organelles that are labeled F?
to temporarily store water, waste products, food, and other cellular material
to produce proteins for the cell
to move proteins and other substances through the cell
to contain digestive enzymes that break down waste material and debris in the cell

Answers

If im not wrong, its golgi body.

Golgy body giving enzyme to append protein to glycosaminoglycans,

it can store water,

produce protein and transport it or stored in the vesicles,

it also have haltened sacs.

Im sorry if im wrong

Answer: c, the rough and smooth ER

Explanation:

moves things through the cell

In an organism, X, it is found to be impossible to generate loss-of-function mutants for most genes. There is an alternative method of introducing random mutations that can later be screened for the gene(s) in question. This can be accomplished by using insertions due to what genetic entities?

Answers

Answer:

Transposable elements (TE)

Explanation:

A transposon, also known as 'jumping genes', is a particular sequence of DNA that can relocate inside of the genome. It affects the genetic identity and can be made use of to either reverse a mutation or create one - it duplicates that genetic sequence. Retrotransposons is a class of TE found in viruses.

The protein RDA for adults is 0.8 grams per kilogram of healthy body weight per day. A woman weighs 60 kg and her weight falls within the normal range for her height. How much protein (in grams) should she consume in one day?

Answers

Answer:

Amount of protein required = 48 gram

Explanation:

Given:

Adult required = 0.8 gram protein per kg

Weight of women = 60 Kg

Find:

Amount of protein required

Computation:

⇒ Amount of protein required = Total body weight × 0.8 gram protein

⇒ Amount of protein required = 60 × 0.8

Amount of protein required = 48 gram

What might an elevated ST segment of an ECG mean?
A. All of these
B. Cardiovascular disease
C. Impending heart attack
D. Hypertrophy

Answers

Answer:

C. Impending heart attack

The elevated ST segment of an ECG mean an impending heart attack. The correct option is C.

What is an EGC?

An electrocardiogram (ECG) is a simple test that can be utilized to check the rhythm and electrical activity of your heart. Sensors attached to the skin diagnose the electrical signals generated by your heart every time it beats.

ST-segment elevation generally signals that the involved coronary artery is completely blocked and that the heart muscle is dying.

Thus, the correct option is C.

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Which characteristic describes the whale but not its food source, the phytoplankton? The whale is heterotrophic. The whale has cell walls. The whale is unicellular. The whale is a prokaryote.

Answers

Answer:

A. The whale is heterotrophic.

Explanation:

The whale is an aquatic animal that is heterotrophic in nature. Heterotrophic means that this animal lacks the ability to manufacture its own food because it depends on plants and animals as a source of food energy. Since the Whale is dependent on phytoplankton for food, this means that it is not a producer of food and as such is heterotrophic.

Phytoplankton is a marine alga. Algaes are prokaryotes and this means that they are unicellular animals without a membrane-bound nucleus. The Cell wall is mostly a characteristic of plants. So the first option is a perfect description of the whale and not its food source which is the phytoplankton.

Answer:

ExplanationThe whale is heterotripic

A general mechanism noted in thrombocytopenia is which of the following? (Select all that apply.) Decreased platelet production Decreased platelet survival Splenic sequestration Intravascular dilution Hemorrhage

Answers

Answer:

decrease in platelet production

what is the function of Krebs Cycle please help!!!!!

Answers

Explanation:

it is the final process of oxidisation for food stuff

Rank the following substances based on how quickly sound will travel through them from fastest to slowest. Then explain your ranking, based on the properties of sound wave
•air
•water
•rock

Answers

Answer:

Rock

Water

Air

Explanation:

Sound can travel through rock the fastest since the molecules are packed the tightest and the second tightest is water than air

A person with the genetic disorder Klinefelter's syndrome has an extra x-chromosome (genotype XXY). What can you predict is the most likely genetic mutation that results in Klinefelter's syndrome?

Answers

Answer:

The correct answer is non-disjunction at the time of meiosis.

Explanation:

A disorder, which takes place in males exhibiting an additional X-chromosome and is an outcome of an error in cell differentiation resulting in anomaly known as the Klinefelter's syndrome. Due to non-disjunction the egg or the sperm may acquire an additional X-chromosome. When these unusual cells take part in the genetic makeup of a person, then that individual most probably suffers from the condition termed as Klinefelter's syndrome.  

In the majority of the circumstances, the division of the cells takes place generally during the development of the sperm, and at the same time, there may be certain errors at the time of egg development. Generally, the condition is mostly seen in the offspring of women that conceive after the age of 35.  

Consider this plant cell. The organelles in a plant cell are labeled. Part E is a complex of vesicles and folded membranes within the cytoplasm. Which organelle is labeled E? Golgi apparatus chloroplast ribosome nucleus

Answers

Answer:

Golgi apparatus

Explanation:

The organelle labelled E is the Golgi apparatus

The organelles found in the cytoplasm are called cytoplasmic organelles

What is cell?

Cell is defined as the simplest, basic and structural unit of life.

There are two types of organisms based on the number of cells they have; namely:

Unicellular organismsMulticellular organisms

Unicellular organisms are organisms possessing only one cellMulticellular organisms are organisms which has two or more cells

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There was little money to run the government because the national government did not____.A) Set up an national trade policy B) Collect the taxes it was entitled toC) Have the power to taxD) Help farmed during the depression The revocation or suspension of a federal covered investment adviser's registration under the Investment Advisers Act of 1940 may be appealed A) to the United States Supreme Court because the Investment Advisers Act of 1940 is federal legislation, unlike the Uniform Securities Act, which is a model for state securities legislation B) through arbitration with the Financial Industry Regulatory Authority (FINRA) C) by petition to the appropriate state securities Administrator D) to the U.S. Court of Appeals serving the district where the order was issued within 60 days of its issuance how does being mindful of your strengths, skills, weaknesses, and potential challenges or obstacles impact your personal, academic, and professional growth? One of these is not an aquatic swimming A. canoeing B. shooting C. swimming D. diving railway cabooses justpaid its annual sividend of $1.70 per share. The company has been reducing the dividends by 11.3 percent each year. how much are you willing to pay today to purchase stock in this company if your required rate of return is 12 percent? Chester Corp. is downsizing the size of their workforce by 10% (to the nearest person) next year from various strategic initiatives. How much will the company pay in separation costs if each worker receives $5,000 when separated? James determined that these two expressions were equivalent expressions using the values of y=4 and yu 6. Whichstatements are true? 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Use the interactive number line to find the sum.-5.5 + 3.7 = A researcher interested in the disappearance of fallen leaves in a deciduous forest carried out a field experiment that lasted nearly a year. She collected all the leaves from 100 plots scattered throughout the forest. She measured the amount of leaves present in November, May and August. The percentages reflect the number of leaves found, using the November values as 100 percent. The slope of the line below is 4 . Which of the following is the point slope form of that line ? ( top answer gets ) Patty Corporation holds 75 percent of Slider Corporation's voting common stock, acquired at book value. The fair value of the noncontrolling interest at the date of acquisition was equal to 25 percent of the book value of Slider Corporation. On December 31, 20X8, Slider Corporation acquired 25 percent of Janet Corporation's stock. Slider records dividends received from Janet as nonoperating income. In 20X9, Janet reported operating income of $100,000 and paid dividends of $40,000. During the same year, Slider reported operating income of $75,000 and paid $20,000 in dividends. 1) Based on the information provided, what amount will be reported as consolidated net income for 20X9 under the treasury stock method? a. $150,000 b. $100,000 c. $75,000 d. $175,000 2) Based on the information provided, what amount will be reported as income assigned to the controlling interest for 20X9 under the treasury stock method? a. $18,750 b. $156,250 c. $175,000d. $100,000 What might an elevated ST segment of an ECG mean? A. All of these B. Cardiovascular disease C. Impending heart attack D. Hypertrophy Students in management science class have just received their grades on the first test. The instructor has provided information about the first test grades in some previous classes as well as the final average for the same students. Some of these grades have been sampled and are as follow:1st test Grade 98 77 88 80 96 61 64 95 79Final average 93 78 84 75 84 64 66 95 86Develop a regression model that could be used to predict the final average in the course based on the first test grade.Predict the final average of a students who made an 83 on the first test.Give the value of r and r2 for this model.Interpret the value of r2 in the context of this problem. Consider a team that you are familiar with - either by being a member of the team, a team leader, or a bystander. What were the team's goals? 2. Look at the figure below.Which angle is congruent to 26? The father in an ancient Roman family was legally allowed toA. Sell his children into slavery.B. Sell his wife to another husband.C. Claim his wifes public office as his own.D. Claim a second wife if his current wife could not have children. Read the excerpt from Swifts A Modest Proposal and answer the question. 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