A molecule of water is comprised of:
A. One atom of negatively charged hydrogen and one atom of positively charged oxygen.
B. One atom of negatively charged oxygen and one atom of positively charged hydrogen.
C. Two atoms of positively charged hydrogen and one atom of negatively charged oxygen.
D. Two atoms of negatively charged hydrogen and one atom of positively charged oxygen.

Answers

Answer 1
It’s option c.
But actually water has both covalent and ionic characteristics. It is 33% ionic and 67% covalent, so it’s not right to say that it’s made up of two positive H and an oxygen atom with negative charge.
With regards to four options given third is most relevant one.

Related Questions

After ATP donates a phosphate group to a coupled reaction, then it becomes ADP. The ADP Group of answer choices can be recharged in an equilibrium reaction to form ATP. can be recharged in an oxidation reaction to form ATP. can be recharged with the release of energy to form ATP. is a waste product that will be broken down. can be recharged with the uptake of energy to form ATP.

Answers

Answer:

can be recharged with the uptake of energy to form ATP

Explanation:

The correct answer would be that the ADP can be recharged with the uptake of energy to form ATP.

ADP is converted to ATP within a cell when free energy is available. The free energy is stored by coupling a phosphate group to ADP to form ATP, such that:

ADP + P (inorganic) + Free Energy ------> ATP

Hence, ADP can only be recharged with the uptake of energy to form ATP, a kind of reaction generally referred to as endergonic reaction.

ਵਚਨ ਬਦਲੋ । ੳ) ਮੋਰ ੲ) ਉਠ​

Answers

Answer:

hyugbdih

Explanation:

yes

.Discuss the THREE types of evidences of evolution to show that all organisms are related to each other: fossil record, comparative anatomy, AND molecular evidence. ALSO, give an example of each.

Answers

Answer:

1. fossil record:

Fossils are organisms that get buried in sedimentary rocks. These are formed at different times. The study of fossils existing in the different rock layers indicates the time period when they existed. Thus different life forms have been formed at different times in the history of the earth.

fossil bird Archaeopteryx is considered as a connecting link between reptiles and birds indicating that birds evolved from reptiles.

2 comparative anatomy:

Homologous organs - such organs that have different embryonic origins but play different roles.

The forelimbs of whale, bat, deer, rabbit

Homologous organs - such organs that are the same in structure and embryonic origin but play similar roles.

wings of a bird and wings of the insect. The wings of the birds are modified

3. DNA sequence can be helpful in finding relations among organisms. Biogeography also helps in identifying the geographical distribution of organisms, to know how and when species may have evolved.

3. Which type of climate is characteristic of Antarctica?

A.humid mid-latitude
B.dry
C.polar
D.humid tropical

Answers

the characteristic would be polar, since it is very cold and the other answers are relating to heat
Climate is polar (cold weather)

In 1980, scientists suggested that the great mass extinction of 65 million years ago (which ended the reign of dinosaurs) may have been caused by a large impact from space. What discovery gives a big boost to this idea

Answers

Answer: the discovery of a buried crater (about 200 km across) near Chicxulub, Mexico

The discovery of a buried crater (about 200 km across) near Chicxulub, Mexico.

What is extinction?

Extinction is defined as the disappearance of an organism or a group of organisms as a result of environmental factors or changes in the members' evolutionary processes.

It can also be defined as an evolutionary process that causes a species or population to go extinct.

When there are no longer any living members of a certain animal or plant species anywhere in the globe, the species has become extinct.

Generally speaking, species disappear for the following reasons:

Genetic and demographic phenomena.Habitat destruction in the wild.Species introduction that are invasive.Global warmingHunting and illicit trade.

Thus the discovery of a buried crater (about 200 km across) near Chicxulub, Mexico.

To learn more about extinction, refer to the link below:

https://brainly.com/question/14480057

#SPJ2

Which is NOT involved at the beginning
of a nerve impulse?
A. reaching the threshold
B. strong stimulus
C. sodium leaving the cells
D. negative charge inside the cell

Answers

Answer: the answer would be C

Sodium ion do not leave at the beginning of the nerve impulse.

They leave after the gated channel opens up after receiving a stimulus.What is a nerve impulse? It is an electrical signal that travels along a nerve fiber in response to a stimulus and serves to transmit record of sensation from a receptor or an instruction to act to an effector.Nerve impulse begin at dendrite and then move toward the cell body of neuron.

To know more about nerve impulse here

https://brainly.com/question/13126722

#SPJ2

The BRCA-1 genes in humans encode proteins that have role in maintaining DNA stability. Mutation in this gene results in formation of non-functional protein, which is not able to repair damaged DNA, resulting in a significantly increased risk of breast cancer. BRCA-1 is a/an: Group of answer choices Proto-oncogene Homeotic gene Oncogene Tumor suppressor gene

Answers

Answer:

tumor suppressor gene

Explanation:

A tumor suppressor gene is capable of modulating cellular processes during cell division and/or replication, thereby avoiding uncontrolled cell proliferation and tumor development. For example, the p53 gene is a tumor suppressor gene that encodes a protein (p53) which is well known to regulate critical cellular processes such as, for example, cell cycle arrest and programmed cell death (apoptosis). Moreover, breast cancer genes BRCA1 and BRCA2 are tumor suppressor genes that regulate the repair of damaged DNA through the Homologous recombination (HR) pathway. In consequence, mutations in BRCA1 and BRCA2 genes can increase the risk of developing breast cancer.

How can the peak of Mount Kilimanjaro be glacial when it is located so close to the equator?

Answers

Answer:

Explanation:

Mount Kilimanjaro lies just 205 miles from the equator, in the country of Tanzania. ... as they thought it was impossible for ice to form so close to the hot, equatorial sun. ... Mawenzi is a craggy peak that ranks as the third highest peak in Africa, after Kibo ... However, Kibo is considered a dormant volcano; it can erupt again!

Select which statements are a part of natural selection.

organisms better adapted to their environment tend to survive

organisms better adapted to their environment tend to reproduce and increase in number

organisms pass on their traits to succeeding generations.

over time, favorable traits become more common in a population

Answers

Answer:

organisms better adapted to their environment tend to reproduce and increase in number

Answer:   *organisms better adapted to their environment tend to survive

*organisms better adapted to their environment tend to reproduce and increase in number

*organisms pass on their traits to succeeding generations.

*over time, favorable traits become more common in a population

Explanation: all of them are correct :)

please answer this ​

Answers

Answer:

11. T

12. F

13. F

14. F

15. T

Answer: T,F,F,F,T


Explanation:

04) As substâncias inorgânicas são caracterizadas pela ausência do elemento carbono em sua estrutura ?

Answers

jenekemeb enenej jejejeje

lactase and carbonic annhydrase are examples of what type of substances

Answers

Answer: They both are enzymes

Answer: enzymes. Both of these substances are enzymes which are substances that speed up chemical reactions

In the gragh the y - i tercept of line is

Answers

Answer:

In the gragh y-intercept is the point.

vì sao cơ thể không hấp thu chất dinh dưỡng cách khắc phục

Answers

Answer:

What?

Explanation:

I dont understand theanguage

The main role of the ________ is to increase the binding ability of RNA polymerase to the lac operon promoter region.

Answers

Answer:

catabolite activator protein (CAP)

Explanation:

Catabolite activator protein (CAP) is a homodimeric transcriptional activator required for transcription initiation of catabolite-sensitive genes in Escherichia coli. CAP contains a ligand-binding domain at its N-terminus and a DNA-binding domain at its C-terminus. CAP activates transcription by binding at target DNA sites on promoter sequences, thereby enhancing the ability of the RNA polymerase to bind and initiate transcription. CAP binds cyclic AMP (cAMP) to increase CAP’s affinity to DNA and thus activates the transcription of genes for catabolism, such as the lactose (lac) operon genes (the lac operon is a set of genes that encode for enzymes taking part in lactose metabolism).

ILL GIVE BRAINLIST PLS HELP!!!!!!!​

Answers

Explanation:

The answers to number 10 are

I for homeostasis

B for metabolism

B for biosphere

E for ecosystem

I for system

E for biology

the answer to no. 11 are

B for biodiversity

B for metabolism

G for organism

G for biosphere

I for cell

I evolution

hope it helps

Exfoliation is which type of weathering?
A. Biological
B. Physical
C. All of these
D. Chemical

Answers

Answer:

The answer is chemical weathering.

Explanation:

Which of these choices is the original source of energy that humans receive from consuming
an herbivore such as a cow?

Answers

Answer:

the glucose we make from eating the cow

If you are interested in the evolutionary relationship of animals that have four limbs, which of the following would be the outgroup? Group of answer choices Sharks Ray-Finned Fish Amphibians Crocodiles Dinosaurs

Answers

Answer:

First outgroup → Ray-Finned FishesSecond outgroup → Sharks

Explanation:

The outgroup is the most distant taxonomic group that shares no traits or characters with the lineages of interest, which compose the ingroup. You can compare the outgroup with the ingroup to determine the evolutive relationship and which characters are primitive or derived.    

Even though the outgroup shares a common ancestor with the ingroup, this is placed far away in evolution, making the outgroup to be the taxonomic group less related to the other lineages. The lineages in the ingroup share another common ancestor that is more recent in history.

To select the outgroup, you need to focus on what you are interested in. There might be several outgroups, but you should choose the one that is more related or closer to the ingroups. This selection is important because you need to make comparisons to understand the evolution of specific traits.  

In the exposed example, we need to focus on animals that have four limbs. Then, we might assume that the ingroup is composed of Amphibians Crocodiles Dinosaurs. Sharks and Ray-Finned Fish do not have four limbs, so they might be considered outgroups.

From these two outgroups, sharks have a cartilaginous skeleton, while Ray-Finned Fishes have a bony skeleton. This fact makes ray-finned fishes more related to the ingroup than the sharks. So,

First outgroup → Ray-Finned FishesSecond outgroup → Sharks

how to identify oxygen and carbon dioxide?

Answers

Answer:

Place a glowing splint in the test tube, and if it reignites, it could be oxygen. Place a burning splint into a test tube, and if it goes out, it could be carbon dioxide. Or, place carbon dioxide gas in limewater, and if it turns milky and gets chunks, it is carbon dioxide.

Answer: Place a glowing splint in the test tube, and if it reignites, it could be oxygen. Place a burning splint into a test tube, and if it goes out, it could be carbon dioxide. Or, place carbon dioxide gas in limewater, and if it turns milky and gets chunks, it is carbon dioxide.

Explanation:

i have done it before:)))

Which of the following is NOT a way igneous rocks are classified?

Question 2 options:

By their texture (example: glassy, rough, porous)


By their composition


By the amount of silica


By their color

Answers

Answer:

By the amount of silica

cause igneous rock is classified by their color, texture and chemical composition

Which of the following would have the least impact on primary productivity in the euphoric zone?

Answers

Answer:

I think its B. The emissions of hydrogen sulfate along hydrothermal vents

Explanation:

Because the euphotic zone (not euphoric, lol) is the warm upper zone in water that sunlight can reach and lets photosynthesis occur. the Hydro vents are down deep.

This table shows the codons found in messenger RNA (attached). Using this information, what sequence of nucleotides in the template strand of DNA could code for the polypeptide sequence Val-His-Thr?

A. GUA-CAU-ACC (THIS IS WRONG)

B. GTA-CAT-ACC

C. CAT-GTA-TGG

D. CAU-GUA-UGG


Please explain, I'm very confused about this topic and I want to learn about it. No false answers or you will immediately be reported. Thanks in advance!

Answers

Answer:

A

Explanation:

The correct answer would be option A - GUA-CAU-ACC

Looking at the table of codons, for the amino acid Val, the first base (which is on the 1st column in the 6th row) is G while the second base (2nd column, 2nd row) is U. The third column can be any of U, C, A, or G (6th column, 4th row). Hence, GUA is plausible

For the amino acid His, the first base is C (1st column, 2nd row), the second is A (4th column, 4th row) while the last could be any of the 4 bases. Hence, CAU is plausible.

For the amino acid Thr, the first base is A (first column, 5th row), the second is C (3rd column, 2nd row) while the 3rth could be any of the 4 nucleotide bases. Hence, ACC is plausible.

Therefore, the correct sequence of nucleotides for Val-His_Thr would be GUA-CAU-ACC

Are there any parts of the human body that get oxygen directly from the air and not from the blood?
A. Yes
B. No
C. Neither​

Answers

Answer:

yes

Explanation:

your lungs

Answer:

Yes because the cornea in your eye takes oxygen directly from the air, not from your blood.

Excessive sugar intake is related to development of dental caries because
A. oral bacteria produce acids that dissolve tooth enamel when they metabolize sugars.
B. sugar leaches calcium and phosphorus out of teeth.
C. salivary amylase dissolves tooth enamel during carbohydrate digestion.
D. sugars make the saliva more alkaline, causing damage to tooth enamel.

Answers

Answer:

The correct answer is A.

Explanation:

Dental caries is a chronic dynamic disease or process that occurs in the tooth structure in contact with microbial deposits. Among the factors that favor the development of dental caries is the excessive consumption of simple sugars. The sugars consumed with the diet constitute the substrate of the oral microflora and initiate the process of cariogenesis. Streptococcus can ferment sugars in the diet to produce primarily lactic acid as the end product of metabolism. This lowers the pH and demineralizes tooth enamel. Cariogenic microorganisms are characterized because they are capable of transporting carbohydrates in competition with other microorganisms, which could be present in the plaque; the rapid fermentation capacity of this substrate made up of sugars and starch and its acidic capacity - acid products - and acidic acid - capable of performing various functions under conditions of extreme acidity. The marked decrease in pH will contribute to the demineralization of the tooth, favoring the appearance of carious lesions in hard tissues: enamel, dentin and cementum.

Difference between plants in a tropical location, a temperate location, or the tundra?

Answers

Answer:

a tropical location as an area near the equator a temperate location is any area that that lies between the tropical and polar zones and a tundra is the coldest of all the biomes. Tundra comes from the Finnish word tunturi, meaning treeless plain. It is noted for its frost-molded landscapes, extremely low temperatures, little precipitation, poor nutrients, and short growing seasons.

Describe a situation from the news or recent history where scientists were called upon to provide explanations of events and offer possible solutions to problems.

Answers

Answer:

climate change

Explanation:

scientists are telling people what to do to save the planet

Identify the following by typing (a) for mitosis or (b) for meiosis on the line before the statements: _____ produces 4 unique gametes _____ begins with a somatic cell _____ produces only 2 identical cells _____ has only one nuclear division _____ happens in the testes and ovaries _____ daughter cells are haploid _____ has two nuclear divisions _____ daughter cells are diploid

Answers

Answer:

b - produces 4 unique gametes

a - begins with a somatic cell

a - produces only 2 identical cells

a - has only one nuclear division

b - happens in the testes and ovaries

b - daughter cells are haploid

b - has two nuclear divisions

a - daughter cells are diploid

Explanation:

Mitosis is a kind of cell division that involves the formation of two daughter cells, which are genetically identical and have the same number of chromosomes as their parent cell (diploid). Mitosis occurs in body or somatic cells for repair and multiplication. Mitosis involves only one nuclear division.

Meiosis, on the contrary, involves formation of four daughter cells that are genetically different from the parent cell and have a reduced chromosomal number (by half). Meiosis occurs in reproductive cells like tested or ovaries. Meiosis occurs in two nuclear divisions.

What is a substrate?
a. a molecule that acts as a catalyst
b. a place on the enzyme where the reaction occurs
c. a place on the product where the enzyme fits
d. a reactant that is catalyzed by an enzyme

Answers

D- it connects to the active site to create an enzyme- substrate complex

Answer:

D- it connects to the active site to create an enzyme- substrate complex

Explanation:

:)

Lisa is giving a speech about Pandas. Her speech includes 3 points: 1) where pandas live; 2) what pandas eat; and three) how pandas reproduce. What type of organization is Lisa using?

Answers

Answer:

Topical order.

Explanation:

Text structure can be defined as words used to describe how a writer or an author organizes his or her words in a literary work.

A topical order refers to a way of structuring a text or organizing a speech based on the main topic and dividing it into several subtopics in logical categories (steps).

In this scenario, Lisa is giving a speech about Pandas. Her speech includes 3 points:

1) Where pandas live.

2) What pandas eat.

3) How pandas reproduce.

Thus, the type of organization Lisa is using is topical.

In conclusion, a speech or text organized in a topical order has its main points organized as subtopics which are well related with the main topic.

Other Questions
Can someone just check my answers please? Please let me know which questions are wrong. Thank you for your time. which method helps prevent communicable disease A study of performance in business organizations found that workers with higher ____ were rated as more effective leaders, as well as being more responsible for others, by their co-workers, supervisors, and subordinates.a. external locus of control b. guilt-proneness c. need to achieve d. narcissism A side of the triangle below has been extended to form an exterior angle of 158. Findthe value of x. A seedling sprouts and its roots crack apart concrete, it is a type of _________ weathering. A. Organic B. Physical C. Chemical D. Biological Hurry! Create a cross word puzzle with your own ideas PLEASE if i dont get this right imma fail :( DNA samples from four different organisms were analyzed using a procedure that separates the DNA in each sample by size.DNA fragments separated by sizeDNA fragments separated by sizeWhat does band X represent?Choose 1 answer:Choose 1 answer:(Choice A)ALargest fragment of DNA that traveled the fastest(Choice B)BSmallest fragment of DNA that traveled the slowest(Choice C)CSmallest fragment of DNA that traveled the fastest(Choice D)DLargest fragment of DNA that traveled the slowest A company with archived and encrypted data looks to archive the associated private keys needed for decryption. The keys should be externally archived and heavily guarded. Which option should the company use? A group of eight 5-year-olds are playing together. Given the research on play, what might you guess about the gender mix of this group of children The Modern State, whether absolutist or constitutional, relied on modern science to achieve its goals. Social Contract Theory, epitomized by Thomas Hobbes and John Locke, provided rational and humanist justification for the use of power by the state. Modern science, already rational, became more humanist, increasingly embracing the use of technology to better human lives. Science also increasingly came under the control of the state, although some science promoters resisted. The Enlightenment, with its rational and humanistic focus, seemed to embrace the growing role of the state, but only when the state was reformed in significant ways to achieve progress for humans and natural rights. Why did the Enlightenment come to embody the concept of reform of the modern state? IN C++ PLEASE!!! Read integers from input and store each integer into a vector until -1 is read. Do not store -1 into the vector. Then, output all values in the vector that are greater than zero in reverse order, each on a new line.Ex: If the input is -19 34 -54 65 -1, the output is:6534#include #include using namespace std;int main() { /* Your solution goes here */return 0;} Read section 6, lines 3-12 on page 178.In section 6, the speaker describes grass as theSelect one:a.uncut hair of graves.b.courage of present times.c.calmness of martyrs.d.whiskers of Tuckahoe. The table shows information about some children.Age 11 Age 12 TotalGirls 3 abBoys c5 8Total d13 eA pupil is selected at random.What is the probability of selecting a student aged 12?Give your answer in its simplest form. Identify a true statement about truth-in-sentencing laws. Select one: a. Most truth-in-sentencing laws fail to target violent offenders. b. Sentences based on truth-in-sentencing laws are widely different from mandatory minimum sentences. c. In practice, offenders sentenced under truth-in-sentencing laws rarely serve 85 percent of their sentences. d. Sentences based on truth-in-sentencing laws were first enacted in the state of Texas in 1974. Briefly explain what is meant by Global PR Use the relationship among the three angles of any triangle to solve. Two angles of a triangle have the samemeasure and the third angle is 27 greater than the measure of the other two. Find the measure of each angle.Please help :) Di- n- pentyl ether can be converted to 1- bromopentane by treatment with HBr through essentially a(n) ________ mechanism. During typical urination, a man releases about 400 mL of urine in about 30 seconds through the urethra, which we can model as a tube 4 mm in diameter and 20 cm long. Assume that urine has the same density as water, and that viscosity can be ignored for this flow.a. What is the flow speed in the urethra?b. If we assume that the fluid is released at the same height as the bladder and that the fluid is at rest in the bladder (a reasonable approximation), what bladder pressure would be necessary to produce this flow? (In fact, there are additional factors that require additional pressure; the actual pressure is higher than this.) Which two techniques do writers employ to draw a reader's attention tosymbols in their stories?making direct statements about characters or eventsE repeating objects throughout a textputting particular emphasis on an object in a storyproviding many conceptual meanings for the same literal object four advantages and disadvantages of migration in economics