Which of the following represents a polar covalent compound?
H₂O
Cl₂
O2
NaCl

Answers

Answer 1

Answer:

NaCl

Explanation:


Related Questions

The ability of muscle to shorten forcibly when adequately stimulated is known as ________, and sets muscle apart from other tissue types.

Answers

Answer: Contractility

Explanation:

The ability of muscle to shorten forcibly when adequately stimulated is known as contractility, and sets muscle apart from other tissue types.

experiment in how to destarch the plant for photosynthesis​

Answers

Answer:

all plants have starch in their green leaves so before we use the photo status experiment the intestinal stars present in it leave must be removed their for the plant must be discharge by keeping plant incompletely dark room for at least 3 days

The sensing component of the feedback system that senses the changes in the environment and generates nerve impulse is known as a/an ______________.
receptor
effector
stimulus
response

Answers

The sensing component of the feedback system that senses the changes in the environment and generates nerve impulse is known as a receptor.

What are nerve receptors?

Nerve receptors can be defined as biological structures capable of converting external/internal stimuli to electrical impulses.

Nerve receptors include different types of cellular structures located in eyes, skin, mouth, nose, etc.

In conclusion, the sensing component of the feedback system that senses the changes in the environment and generates nerve impulse is known as a receptor.

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Fungi are divided into subgroups based on their methods of ____________.

Answers

Fungi are divided into subgroups based on their methods of sexual reproduction.

Fungi division

Fungi are divided into 4 groups, namely:

ChytridiomycotaZygomycotaAscomycotaBasidiomycota

The division into the different groups is based on the methods of sexual reproduction used.

Zygomycota produce zygosporesAscomycota produce ascosporesBasidiomycota produce basidiosporesChytridiomycota produce diploid zoospores

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How many ATP are generated from the E.T.C?

Answers

Thirty-four (34) ATP is generated from the electron transport chain.

The electron transport chain

It is one of the steps through which energy is extracted from glucose during respiration.

The first step is glycolysisThe second step is the citric acid cycleThe last step is the electron transport chain

Two molecules of ATP are generated from glycolysis, 2 are generated from the citric acid cycle, and 34 are generated from the electron transport chain.

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cellular membrane are permeable to _______ but impermeable to __________

Answers

Cellular membrane are permeable to nutrients but impermeable to protein.

What is cell membrane?

Cell membrane is the cellular structure that surrounds the cell which is semi permeable thereby selecting the substances that either leaves or enters the cell.

Nutrients are chemical that helps to sustain the cell while proteins are used to build up worn out part of the cell.

Therefore, the cell membrane allows the cell to absorb nutrients by resists the removal of proteins.

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Question 4 of 5
When was Pluto formally downgraded from planet to dwarf planet?

Answers

Answer:

August 2006

Explanation:

PLEASE ANSWER LOLL 100 points

Answers

Answer:

[tex]\textsf {Option 2}[/tex]

Explanation:

Hot springs and geysers are formed by the heating of groundwater. This is evidenced by the bursting of these natural phenomena, releasing heat.

Compare the origins of the common carotid arteries of the fetal pig with those of the human.

Answers

The comparison is that in humans, only one carotid arteries branches from the brachiocephalic artery while for the fetal pig, both arteries branches from the brachiocephalic artery.

What is the comparison of the Arteries?

The difference between the origins of the carotid arteries in the human heart and the fetal pig is that In a human, the right carotid arteries branches from the brachiocephalic artery, while the left common carotid artery comes directly out of  the aortic arch.

Meanwhile, In the fetal pig, both carotid arteries branch from the brachiocephalic artery.

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Clouds can decrease the range of daily temperatures because ________.

Answers

According to the research, low and thick clouds reflect solar radiation and help to send it back into space during the day.

What are the clouds?

It is the mass of aqueous vapor that is suspended in the atmosphere that reflects solar radiation contributing to the cooling of the Earth's surface.

One of the determining factors of daily temperatures is the reflection of solar radiation by the clouds, when there are no clouds in the sky, diffuse radiation is produced through the process of diffusion through atmospheric particles.

Therefore, we can conclude that according to the research, low and thick clouds reflect solar radiation and help to send it back into space during the day.

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Why is blood glucose self-monitoring preferred over urine glucose testing?

Answers

Blood glucose self-monitoring is preferred over urine glucose testing because it is more accurate.

What is glucose testing?

Glucose testing refers to the methodologies to measure the amount of this simple carbohydrate in the body tissues/organs.

Glucose testing is fundamental to assess the diseases associated with the metabolism of this nutrient (e.g., diabetes)

In conclusion, blood glucose self-monitoring is preferred over urine glucose testing because it is more accurate.

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digestive tract & ____________________ together constitute the digestive system.

Answers

Answer:

Digestive tract & Accessory glands together constitute the digestive system.

Explanation:

The accessory organs are the teeth, tongue, and glandular organs such as salivary glands, liver, gallbladder, and pancreas.

Match the items. The task is to match the lettered items with the correct numbered items. Appearing below is a list of lettered items. Following that is a list of numbered items. Each numbered item is followed by a drop-down. Select the letter in the drop down that best matches the numbered item with the lettered alternatives. a. Host ribosomes cannot translate it. Need to copied to strand to make viral proteins b. Translated directly to make viral proteins c. Integrated viral genome in an animal host d. Enzyme needed to copy RNA to RNA e. Synthesizes complementary ssDNA once inside the cell.

Answers

The lettered items are matched with the correct numbered items as follows:

a. -SSRNA: host ribosomes cannot translate it. Thus, it need to be copied to + strand to make viral proteins.

b. +SSRNA: it can be translated directly to make viral proteins.

c. Provirus: the integrated viral genome in an animal host.

d. RNA dependent RNA polymerase: an enzyme needed to copy RNA to RNA.

e. Retrovirus: it synthesizes complementary ssDNA once inside the cell.

What is a genome?

A genome can be defined as the complete set of hereditary instructions which is typically found in the deoxyribonucleic acid (DNA) such as:

+SSRNA-SSRNADSRNA

In conclusion, the lettered items should be matched with the correct numbered items as follows:

-SSRNA: the host ribosomes cannot translate it. Thus, it need to be copied to + strand to make viral proteins.+SSRNA: it can be translated directly to make viral proteins. Provirus: the integrated viral genome in an animal host. RNA dependent RNA polymerase: an enzyme needed to copy RNA to RNA. Retrovirus: it synthesizes complementary ssDNA once inside the cell.

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Complete Question:

Match the items. The task is to match the lettered items with the correct numbered items. Appearing below is a list of lettered items. Following that is a list of numbered items. Each numbered item is followed by a drop-down. Select the letter in the drop down that best matches the numbered item with the lettered alternatives.

a. Host ribosomes cannot translate it. Need to copied to strand to make viral proteins

b. Translated directly to make viral proteins

c. Integrated viral genome in an animal host

d. Enzyme needed to copy RNA to RNA

e. Synthesizes complementary ssDNA once inside the cell.

1. +SSRNA

2. -SSRNA

3. Retrovirus

4. RNA dependent RNA polymerase

5. Provirus

What are the classification categories

Answers

The classification categories of organisms are:

KingdomPhylumClass Order Family Genus Species

What is taxonomy?

Taxonomy can be defined as a scientific method which is used by researchers for the naming, classification and description of the various species of organisms such as humans, animals, and plants.

In Science, the classification categories of organisms include the following:

KingdomPhylumClass Order Family Genus Species

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When using Triple Sugar Agar, select the coloration that can be expected with different bacterial growth (select all that apply). Group of answer choices Yellow butt with a red slant Yellow butt with a yellow slant Yellow butt with a green slant Purple slant Red butt with a red slant Black and red slant Metallic green slant Red butt and slant with bubbles

Answers

The coloration that can be expected with different bacterial growth when using Triple Sugar Agar are:

Yellow butt with a yellow slantYellow butt with a red slant

What is bacteria?

Bacteria are simple and microscopic organisms which are mostly pathogens of different infectious diseases

For growth to occur in bacteria, different kinds of nutrients are needed in the process called growth media.

Two different growth media which bacteria uses to grow are:

Liquid growth mediaSolid growth media

In conclusion; The coloration that can be expected with different bacterial growth when using Triple Sugar are Yellow butt with a yellow slant and Yellow butt with a red slant

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What would most likely prevent the outside-in model from becoming an accepted scientific theory

Answers

Answer:

THE RESEARCH

Explanation:

Answer:

the research

Explanation:

Some people have their gall bladder surgically removed to the formation of gall stones. Describe the function of the gall bladder and explain how a gall bladder removal would have on their digestion.

Answers

Underneath the right side of the liver, the gallbladder is a pear-shaped organ.

What is the function of gall bladder?

Its primary function is to gather and concentrate bile, a digestive fluid made by the liver. The gallbladder is where bile is kept after the liver produces it. The gallbladder receives a signal from the stomach when you eat. Bile is released from the gallbladder when it contracts, and it travels through the gut via the major common duct. Bile combines with the food there and aids in digestion.

When the gallbladder is removed from a healthy person, there are rarely any obvious health or digestive issues, though there is a slight chance of diarrhea and fat malabsorption.

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Survivorship types cab be gaphed to depict survival percentages over time. Examine four graphs below: (graph in the picture )

which curve on the graph represents a species that produces high numbers of offspring with paternal care?

A. Graph 1
B. Graph 2
C. Graph 3
D. Graph 4

Answers

Graph 3 shows a species that produces high numbers of offspring with paternal care.

What is the survivorship curve?

The survivorship curve gives us a idea of the  number of individuals in the population that are expected to survive and reproduce at any given time. We have to note that paternal care increases the chances of survival of the organism.

Hence, graph 3 shows a species that produces high numbers of offspring with paternal care.

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What is the role of the eukaryotic promoter in transcription?.

Answers

Answer:

The purpose of the eukaryotic promoter is to bind transcription factors that control the initiation of transcription.

The promoter region can be short or quite long; the longer the promoter is, the more available space for proteins to bind


Are data that do not support a hypothesis useful?
A. No, because the data must be inaccurate
B. No, because the data show that the experiment failed
C. Yes, because the data prove that the experiment was designed
poorly
D. Yes, because the data provide useful information that can lead to
more testing

Answers

Answer:

D

really dude, just read these types of questions the one that's really different is usually right

__________________ antibiotics inhibit the replication of microorganisms and prevent the growth of the organism without destroying them.

Answers

Bacteriostatic antibiotics inhibit the replication of microorganisms and prevent the growth of the organism without destroying them.

What is an Antibiotic?

An antibiotic refer to chemical substances that hello to destroy, kill or inhibit the growth of microorganisms in the body to prevent infections.

Therefore, Bacteriostatic antibiotics inhibit the replication of microorganisms and prevent the growth of the organism without destroying them.

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Which of the following is an example of a beneficial mutation?

A.
a mutation causing uncontrolled cell division in human tissue cells
B.
a mutation inhibiting human immunodeficiency virus from entering the host cell
C.
a mutation resulting in partial or complete loss of chlorophyll pigments in plants
D.
a mutation resulting in a squirrel being born without ovaries

Answers

Answer: A

Explanation: TOOK THE TEST OK

Explain how the wall thicknesses are related to the functions of the chambers.

Answers

The explanation of how the heart wall thicknesses are related to the functions of the chambers are as explained below.

How to know heart wall thickness and chambers?

Heart chambers are four hollow spaces within the human heart which are made up of two atria and two ventricles.

The thickness of the heart wall is related to the force of contraction required  in the heart in the sense that the left ventricle which is the thickest wall contracts with the greatest force and creates the greatest amount of blood pressure in the heart chambers.

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Which of the following is not a characteristic of living things

Answers

Answer:

C. Must be able to reproduce

Explanation:

A. All living things must grow and develop

B. Single-celled organisms exist and are considered living things.

D. All living things must have DNA in their cells.

Which describes these molecules correctly

Answers

The correct description of the given molecule is C. Fatty Acid.

Why is this molecule a fatty acid?

A typical fatty acid has a straight chain of carbon atoms. These atoms are then bonded with hydrogen atoms.

At the end of this line, there will be a -COOH bond and at the beginning, there is an H bond. This is what is depicted in the diagram so it must be a fatty acid molecule.

Options for this question include:

A. ribose

B. glucose

C. fatty acid

D. sucrose

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according to the avma, which method is acceptable, when used by itself, for euthanasia of rabbits?

Answers

According to the avma, the acceptable method, when used alone, for the euthanasia of rabbits are barbiturates and barbituric acid derivatives.

What is the method of euthanasia in rabbits?

Recommended methods of euthanizing rabbits depend on the facilities and conditions in which the animals are housed and maintained. in a controlled as a biomedical research facility where researchers have access to restraint devices and controlled drugs, intravenous injection of barbiturates is generally used.

With this information, we can conclude that according to the avma, the acceptable method, when used alone, for the euthanasia of rabbits are barbiturates and barbituric acid derivatives.

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The most common use of radioactive isotopes in medicine is to diagnose disease. Typically, radioactive materials are injected into the body and then radiation-detecting cameras are used to build images of affected body parts or particular types of cells. This equation models the amount of a radioactive isotope in the bloodstream minutes after it is injected:

Answers

Radioactive substances are employed in therapy to destroy malignant tissue, shrink a tumor, or lessen discomfort.

What is the radioactive elements?

Two or more chemical species of an element with varying atomic masses and unstable nuclei are referred to as radioactive isotopes. Because of the excess radiation that these isotopes produce in the form of alpha, beta, and gamma rays.

Nuclear medicine treatments use a tiny amount of radioactive substance called a radiopharmaceutical to assist diagnose and cure disorders. To identify disorders, some radiopharmaceuticals are utilized in conjunction with imaging technology. To reduce or eliminate a cancerous tumor, radiopharmaceuticals can also be injected close to the tumor inside the body.

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Human beings have a long period of development, requiring nurturance and protection for many years. What would evolutionary theorists argue about this long period of relative immaturity?

Answers

There argument would be that It is a necessity because a long period of adaptation is needed for acquiring physical and cognitive competencies.

Who are the evolutionary theorists?

Evolutionary theorists are those scientist in the field of psychology that studied the long term discoveries about the development of human beings from generation to generation.

They where able to discover that human beings have a long term period of development requiring nurturance and protection for many years.

This was so because such a long period of time is needed for them to acquire both physical and cognitive competencies.

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This skeleton belongs to americon museum of natural history.find out the name of the animals to which this skeleton lelongs.does this animal still exist

Answers

Answer:

na the animal don't exist in today's life

During an action potential, the rapid decrease in sodium permeability and simultaneous increase in potassium permeability is responsible for __________.

Answers

the repolarization of the cell.

Mechanism :

Action potentials are signals that are sent and received by muscle and nerve cells. Because of the negative concentration gradient in the resting membrane potential of nerve cells, there are more positively charged ions outside the cell than inside. There are more sodium ions outside the cell and more potassium ions within because these positively charged ions are sodium ions. Action potentials cause the membrane to depolarize, which is followed by the process of repolarizing the cell. The membrane potential changes and reverts to the negative value of the resting potential during repolarization. The potassium channels open and the sodium channels close at this stage, allowing the nerve cell to lose positively charged ions.  

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Enter your answer in the provided box. Crystalline silicon has a cubic structure. The unit cell edge length is 543 pm. The density of the solid is 2.33 g/cm3. Calculate the number of Si atoms in one unit cell. atoms/cell 6. A metal block increases in temperature from 15 C to 60 C when supplied with 13 500 J of heat energy.a) Calculate the heat capacity of the metal.b) Calculate the specific heat capacity of the metal, if this sample has a mass of 0.75 kg. A woman takes her dog rover for a walk on a leash. She pulls on the leash with a force of 30.0 N at an angle of 29 above the horizontal sidewalk. What force is tending to lift Rover vertically off the ground?Please help I'm stuck. The size of a mumps virus isapproximately 0.000 000 19 metres.What is this value in standard form? Giveyour answer in metres (m). Two related populations separated by a mountain range for many generations eventually become different species providing an example of what type of speciation The mean cost of a five pound bag of shrimp is 40 dollars with a standard deviation of 7 dollars. If a sample of 51 bags of shrimp is randomly selected, what is the probability that the sample mean would be less than 40.6 dollars? Are microorganisms best suited for dry, warm environments? pleasee help me with this function asap there are recent out break in your school; write a letter to the district office, complaining about the unsanitary condition of your school, suggesting at least four ways of improving the situation. Shane is 12 meters behind the leader in a running race. Kathy is 5 meters behind the leader. Lilly is 5 meters ahead of the leader. Who is/are the nearest to the leader? factorise:y(x+z)+z(x+y)+y^2+z^2 According to the passage, the tubes displayed at the Paris Exposition wereO placed in the window of a barber shopO designed to attract customers to purchase goodsO meant to attract attention to a new technologyused to convey a written message Why do scientists refer to inputs and outputs of carbon in the environment as a cycle? Which describes how Africa was divided into countries?O A. Africa was divided up based on long-standing cultural differences.B. Africa was divided up based on a system of African elections.C. Africa was divided up with the goal of extending the slave trade.OD. Africa was divided up by Europeans who had little concern forAfrican traditions.SUBMIT This map shows the provinces and states controlled by one imperialist nation in the 1800s and 1900s. which nation controlled the shaded territories on the map? france 0 great britain o japat 0 china 1) Consider this row in the periodic table. What changes can you predict based on what information is provided by the boxes for each element?A) The elements change from solids to gases and the valence electrons decrease in number. B) As you move across the row, the number of electrons increases and reactivity also increases. C) They have different atomic numbers and mass numbers; they have the same number of valence electrons. D) Both the atomic numbers and the mass numbers increase; the least reactive element is in the last box.USA test prep question The sum of the measures of two exterior angles of a triangle is 264. What is themeasure of the third exterior angle? The flux through the coils of a solenoid changes from 2.57.10-5 Wb to 9.44.10-5 Wb in 0.0154 s. If 4.08 V of EMF is generated, how many loops does the solenoid have? (No unit) In infrared satellite images, land appears _________ and clouds appear _________. A. red, yellow B. white, black C. black, white D. yellow, red Which wan connection types use digital communications over pots?