What best describes a river system?
A. the network that includes all the waters feeding into a main river and all the waters branching out from it
B. the source of a river and all the tributaries feeding into the river
C. the source and mouth of a river
D. all the distributaries flowing away from a river and the mouth of the river

Answers

Answer 1

Answer:

i think it’s (A)

Explanation:


Related Questions

endocrine glands differ from exocrine glands in that

Answers

Answer:

C. endocrine glands are ductless and release hormones and exocrine glands release secretions through ducts

PLS HELP 7. Several chemical processes occur during photosynthesis and cellular respiration. Which process occurs
inside the chloroplast and helps create the glucose molecule?
a. Kreb Cycle
b. Calvin Cycle
C. Cellular Respiration
d. Fermentation

Answers

Answer:

I think c

Explanation:

If steel is more dense than lake water, why can a boat float?

Answers

Answer:

the average density of the boat, including the steel and air, is less dense than 1.00 g/cm³. the average density of the boat, including the steel and air, is more dense than 1.00 g/cm³. lake water is more dense than pure water.

Explanation:

You welcome

PLEASE HELP ASAP!!

1) Complete the diagram of the cell cycle by writing the names of
each of the four phases.

Answers

Answer: Verified by:  imsobored100013

Explanation: There's no explanation for this answer if need of help just reply to this answer.

Hope this helped you :)

There are four phases in the cell cycle. Thus, the four phases are the G1 phase, S phase, G2 phase, and M phase.

What is the cell cycle?

Chromosomes and other cell components duplicate to create two copies of themselves over the course of the cell cycle. Following this, the cell divides into two daughter cells, distributing one copy of the duplicated material to each.

G1, S, G2, and M are the four distinct stages of the cell cycle. DNA replication takes place during the S or synthesis phase, and the cell divides during the M or mitotic phase. The other two phases, G1 and G2, sometimes known as the "gap phases," are equally significant but less striking. Further M phase is divided into prophase, metaphase, anaphase, and telophase.

Thus, the G1 phase, S phase, G2 phase, and M phase are the four main phases in a cell cycle.

Learn more about the cell cycle, here:

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True or False: In Biology, Fitness refers to how fast and strong an individual is. Explain.

Answers

Answer:

False

Explanation:

The biological fitness of a person's organism is dependent on their ability to survive and reproduce in a given environment. If different traits or alleles increase the fitness of an organism, those alleles will consequently increase in the gene pool, and that trait will increase in the population. This is how natural selection affects a population.

(This explanation is kinda mixture of the meaning of the word Bio (life) and fitness)

I hope this is the answer you are looking for, I am sorry if it is wrong.

If you want you could mark brainlest, you don't have to if you don't want to. To be honest I don't really care if you do or do not mark this brainlest, I'm just happy to help you.


6. Which of the following are "Organic" molecules?
CH4
CO2
C6H1206
H20
Carbohydrates
DNA
NH4
02
Amino Acids
Enzymes
Lipds

Answers

Answer:

CH4

CO2

C6H1206

Carbohydrates

DNA

Amino acids

enzymes

lipids

Explanation:

organic means they contain carbon and all of these above contain carbon

3. What is the word equation for Photosynthesis?

Answers

Answer:

Explanation:

is as follow 6CO2+6H20+(energy)--CH12O6+6O2 Carbon dioxide +water +energy from light produces glucose and oxygen.

Question 4 (1 point)

What is not a possible source of error?

A. measuring devices have limits, might be broken, or might be calibrated

incorrectly

B. outside factors can affect te experiment (temperature, humidity, light, wind,

C.all answers are sources of error

D. Lap equipment is not always identical (they can vary)

E.people observe things slightly differently and can make mistakes

Answers

Answer:

The correct answer is option C. all answers are sources of error.

Explanation:

The major source of error in any scientific experiment includes instrumental error which means that instruments or lab equipment are not accurate or calibrated properly or not able to determine the experiment.

It also includes a human or manual error in observing experiment observation or analyzing or calculating the results. Evolutionary errors are also one of the major sources of error that include humidity, temperature, wind, or light.

If your body temperature rises, all of the
following will occur EXCEPT

Answers

Answer:

idu

Explanation:

picture

Answer:

what are the options given for the question

The greatest number of individuals that an ecosystem can support within a population is the

Answers

Answer:

Carrying Capacity

Explanation:

The definition of carrying capacity in relation to biology is, "the number of people, other living organisms, or crops that a region can support without environmental degradation."

While investigating at the park you notice the water in the pond. This is an example of

Answers

Answer:

Liquid, if you are meaning in terms of mass

Explanation:

Three red square pieces of wood, four yellow square pieces, and five blue square pieces are put into a cloth bag. Four red round pieces, two yellow round pieces, and three blue round pieces are also put into the bag. All the pieces are then mixed about. Suppose someone reaches into the bag (without looking and without feeling for a particular shape piece) and pulls out one piece.

Answers

The question is incomplete. Here is the complete question.

Three red square pieces of wood, four yellow square pieces, and five boue square pieces are put into a cloth bag. four re round pieces, two yellow round pieces, and three blue round pieces are also put into the bag. All the pieces are then mixed about. Suppose someone reaches into the bag (without looking and without feeling for a particular shape piece) and pulls out one piece.

What are the chances that the piece is red round or blue round piece?

a. Cannot be determined

b. 1 chance out of 3

c. 1 chance out of 21

d. 15 chances out of 21

e. 1 chance out of 2

Because:

a. 1 of the 2 shapes is round

b. 15 of the 21 pieces are red or blue

c. There is no way to tell which piece will be picked

d. Only 1 of the 21 pieces is picked out of the bag

e. 1 of every 3 pieces is a red or blue round pieces

Answer: b. 1 chance out of 3

              e. 1 of every 3 pieces is a red or a blue round pieces

Explanation: Inside the bag, there will be:

Total of squares: 3 + 4 + 5 = 12Total of round: 4 + 2 + 3 = 9Total of pieces inside the bag: 12 + 9 = 21

The question is asking for a round red piece. The probability of that happening is

P(r) = [tex]\frac{4}{21}[/tex]

And a blue round piece:

P(b) = [tex]\frac{3}{21}[/tex]

It is a "OR" probability, so:

P(r or b) = [tex]\frac{4}{21} +\frac{3}{21}[/tex]

P(r or b) = [tex]\frac{7}{21}[/tex] or [tex]\frac{1}{3}[/tex]

Which means 1 out 3 pieces taken out of the bag will be red or blue.

3. There are two structures that are characteristics of all viruses: nucleic
acid and a capsid. What is the function of the nucleic acid?
A. The nucleic acid contains the genetic information the virus needs
to bind with a host cell.
B. The nucleic acid gives the virus the shape it needs to invade a host
cell.
C. The nucleic acid contains the genetic information that the virus
needs to reproduce itself.
D. The nucleic acid contains the genetic information the virus needs
to avoid detection.

Answers

Answering: I believe d

Explanation:

The nucleic acid encodes the genetic information unique for each virus, each virus has its own unique info.

The correct statement is that the nucleic acid contains the genetic information the virus needs to avoid detection.

What is the nucleic acid?

They are macromolecules or biological polymers present in the cells of living beings that are carriers of cellular information.

Viruses have a protein capsid and some have an envelope, these consist of a single nucleic acid (RNA or DNA) that encodes the viral genome.

Therefore, we can conclude that the correct statement is that the nucleic acid contains the genetic information the virus needs to avoid detection.

Learn more about viruses here: https://brainly.com/question/9476531

List the various forms of nitrogen present in the nitrogen cycle

Answers

In the atmosphere, nitrogen exists as a gas (N2), but in the soils it exists as nitrogen oxide, NO, and nitrogen dioxide, NO2, and when used as a fertilizer, can be found in other forms, such as ammonia, NH3, which can be processed even further into a different fertilizer, ammonium nitrate, or NH4NO3.

What is true about Structure A
please answer if not then that’s fineee

Answers

Answer:

✔️Facilitated diffusion does not require any of cell energy.

Explanation:

The above structure A is known as Cell Membrane. It is a permeable membrane through which materials are diffused or transported in and out of the cell.

Option A is true for structure A because facilitated diffusion does not require the cell's energy. Facilitated diffusion is passive transport of molecules or ions across the membrane which is spontaneous.

It is passive because facilitated diffusion does not directly require chemical energy from ATP hydrolysis. What happen is that molecules and ions move down their concentration gradient. This movement reflects their diffusive nature.

True or false The smallest particle of an element is called a Atom

Answers

Answer:

True

Explanation:

Answer: True

Explanation:

im also taking biology lol, i remember writing that in my notes last chapter.

HELP ASAP!! 3 sentences please!!!
what is the structure and functions of RNA?​

Answers

Answer:mrna Serves as intermediary between DNA and protein; used by ribosome to direct synthesis of protein it encodes

Trna Carries the correct amino acid to the site of protein synthesis in the ribosome

Explanation:

Which one of these is an example of a biome?
oak tree
ocean water
a mountain range
desert

Answers

Answer:

Desert

Explanation:

pls mark brainliest

what is frictional force?​

Answers

Friction is essentially what you experience everyday. You can think of it as a “sticky” force I guess. It’s an interaction among atoms. Really, friction itself comes from gravity. Gravity pushes us towards the earth and this creates a normal force. If you calculate the friction coefficient, which is done in labs, you can multiply that coefficient by the normal force to get the force of friction. It always opposes the attempted motion. So you want to subtract it from your force in which is causing an acceleration to the object.

Earth orbits the Sun every 365 days, causing seasonal patterns that vary by location. In the winter, the Northern Hemisphere is
tilted away from the Sun, and receives the smallest amount of solar energy than any other time of the year. What can be expected
in the Northern Hemisphere during this season?
A)
warmer temperatures and decreased daylight
B)
cooler temperatures and increased daylight
C)
warmer temperatures and increased daylight
D)
cooler temperatures and decreased daylight

Answers

Answer:

D) Cooler temperatures and decreased daylight

Which of the following correctly illustrates a dipeptide and an amino acid in the optimal position to form a tripeptide? ​

Answers

The options in the question are shown in the image attached to this answer

Answer:

A

Explanation:

A peptide bond is formed between a carboxylic acid and an amine group. These two functional groups must be in the correct orientation before they can react to form the peptide bond.

If we study the images closely, only the amine group and carboxylic acid in option A are correctly positioned for reaction to take place leading to the formation of a third peptide bond.

Amino acids connect by peptidic bonds to form the linear structures of proteins. In the peptidic bond, the amino group joins the carboxylic group, and a water molecule is released. Among the options, A is the correct one.

-------------------------------------------------------

Amino acids are organic molecules.

They are composed of a central carbon, one hydrogen atom, one carboxyl group (COOH), one amine group (NH₂), and one R group. The composition of the R group is what makes them different from each other.

Proteins are amino acid polymers linearly arranged and connected by peptidic bonds.

The number of amino acids composing the chain and their order determines the primary structure of the protein.

The protein is synthesized from the amino terminus to the carboxy terminus.

The peptidic bond is the union of two amino acids by their carboxyl and amine groups.

When they get together, a water molecule is released, producing a covalent bond ⇒ CO-NH.

Peptidic bonds only form linear structures, with no ramifications, known as peptides.

In this way, every peptide has a free carboxylic group in one extreme and a free amine group in the other extreme.

     

Among the given options, the correct position of the dipeptide and the amino acid to form a tripeptide is option A.

By looking carefully at the position of the molecules, we can see that this is the only option in which a carboxylic group and an amine group are facing.

This orientation is the only one possible for the peptidic bond to form.

COOH and NH₂ must get together, releasing a water molecule, and creating the covalent bond CO-NH.

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20 POINTS AND BRAINLIEST!!!

You will write a creative story describing what happens to a goldfish in three distinct parts. Part 1: As it
passes your lips to the cardiac sphincter. Part 2: As it passes through the cardiac sphincter until it
reaches the place where the duodenum becomes the jejunum. Part 3: From the jejunum until it exits the
body. In doing this you will be responsible for identifying the anatomy involved as well as what happens
in the digestive process at each location.

Answers

Answer:

Major organs involved in the digestive system include the mouth, stomach, small intestine, large ... When it reaches your stomach, a sphincter opens and dumps the food in. ... To move into the small intestine, chyme must pass through the pyloric sphincter. From here it enters the duodenum, the first part of the small intestine.

Explanation:

Which absorbs more carbon dioxide: the atmosphere or the ocean?

Answers

Answer:

The atmosphere

Explanation:

Most of the air travels through the atmosphere tho very little travels through the ocean from air vents, or scuba diver oxygen tanks.

I hope this helped!

Note: Your teacher will grade your responses to questions 24‒25 to ensure you receive proper credit for your answers. What circumstances would cause an organism to adapt? In your answer, be sure to explain the differences between both short- and long-term adaptations. Use an example to explain your answers.

Answers

Answer:

Explanation:

Usually, adaption is triggered by the need to survive and reproduce. Short-term adaption is usually caused by a sudden change in circumstance which causes the need for behavior or tactics to change based on previous experience or knowledge. Long term adaption is different, this usually occurs naturally over the course of many decades in order for the species to have better chances of surviving in the changing environment that they are living in.

Which two terms indicate the same area of the body?
1. superior and cranial
2. dorsal and inferior
3. ventral and posterior
4. lateral and medial

Answers

I think it’s lateral and medial but I’m not sure
Option 2 is the correct answer, dorsal and inferior

punnert squre measure the probability or likilyhood of genetic out come.
O True
O False

Answers

Answer: I would say false but I’m not 100% sure

Explanation:

This is False! A punnet square is not the probability of a genetic outcome.

HELP
Q4. Identify the way in which the seed of the following plant get disperse: ( / 3)
Name
Characteristics
Way of Seed Dispersal


Dandelion

Parachute like structures


Sandbur

Has hooks


Maple

Fruits have wings

Answers

Explanation:

hi.....................................

Take a few minutes to look at pictures of humans and humpback whales. You can look for the images on the Internet or look through books in a library. After carefully studying them, try to answer these questions:

What are the characteristics of each species?
Are some of these features similar to those of other species? Which species?
Based on similar physical features, do you think other existing species share an evolutionary lineage with either humans or humpback whales? Which ones do?

Answers

Answer:

Here's what I put for my answer. I hope this help's a tiny bit!

Explanation:

Humpback whales are very big ocean animals, they have bumps all over their body and have a white stomach while the rest are almost black. Humpback whales are very similar to other whales because of their size and features. I do think some other existing species share an evolutionary lineage with humans or humpback whales. The blue whale as almost the same pattern and size of the Humpback whale.  And share some of the same DNA.

Answer:

Here's what I put for my answer. I hope this help's a tiny bit!

Explanation:

Humpback whales are very big ocean animals, they have bumps all over their body and have a white stomach while the rest are almost black.

Humpback whales are very similar to other whales because of their size and features.

I do think some other existing species share an evolutionary lineage with humans or humpback whales. The blue whale as almost the same pattern and size of the Humpback whale.  And share some of the same DNA.

Explanation:

A blood cell is placed into the jar, as seen. Where will the water go?

A: Equally in & out - it’s isotonic

B: Into the cell

C: The water is a lie

D: Out of the cell

Answers

Answer:

B. into the cell........

Answer:

its A bro bro i did the test

Explanation:

Which of the following is an observation?

a. You record the air temperature every day for a week.

b. You propose that a cold front is approaching.

c. You hypothesize that the temperature will increase tomorrow.

d. You conclude that the season is changing.

Answers

Answer:

a. You record the air temperature every day for a week.

Explanation:

Recording air temperature every day for a week can be classified as making an observation.

Observation is a part of the scientific method. It is a basically a way of collecting data.

During observation, our senses can be used or instruments. Depending on the nature of the study, specialized instruments helps to bridge the limitations of our senses. A good scientist is a keen observer. Making a record of air temperature usually by using a thermometer is a way of carrying out observation.

When you record air temperature, you are making an observation.

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In what way does Louisa May Alcott compare the March girls to Christian, from Pilgrims Progress? the planet jupiter has an average distance of about 0.00008 LIght years from the sun. What is this distance in scientific notation SHOW YOUR WORK It had been raining for seven years; thousands upon thousands of days compounded and filled from oneend to the other with rain, with the drum and gush of water, with the sweet crystal fall of showers and theconcussion of storms so heavy they were tidal waves come over the islands.14. The highlighted words convey what type of mood regarding the weather on this planet?O CheerfulO AmazedFortunateO Depressing What are the eight major blood types in the human body? i need answer the right one cuz idk it is Surreptitiousness a verb or? CERTAIN ANSWERS!!! Please assist me! I will award you brain crown! Thank you in advance:)) Why do health care professionals use abbreviations?A. To make records and charts longer and moredetailedB. To save time and space while writingC. To prevent visitors from understanding confidentialpatient recordsO D. To keep patients from understanding their records pls help me out on this! How does the Constitution limit the power of the president as commander in chief?It gives the judicial branch power to get military funding.It keeps the military from overrunning the government.It grants power to declare war to Congress.It gives the president authority over only the army. which body part belongs to the curculatory system a) diaphragm b) heartc) trachead) kidney domain and range of the function In the 21st century, with an intensely competitive consumer market, advertisers increasingly used digital technology to call greater attention to products. In 2009, for example, the world's first video advertisements to be embedded in a print publication appeared in Entertainment Weekly magazine. The thin battery-powered screen implanted in the page could store up to 40 minutes of video via chip technology and automatically began to play when the reader opened the page.For an advertisement to be effective, its production and placement must be based on a knowledge of the public and a skilled use of the media. Advertising agencies serve to orchestrate complex campaigns whose strategies of media use are based on research into consumer behavior and demographic analysis of the market area. A strategy will combine creativity in the production of the advertising messages with canny scheduling and placement, so that the messages are seen by, and will have an effect on, the people the advertiser most wants to address. Given a fixed budget, advertisers face a basic choice: they can have their message seen or heard by many people fewer times, or by fewer people many times. This and other strategic decisions are made in light of tests of the effectiveness of advertising campaigns.There is no dispute over the power of advertising to inform consumers of what products are available. In a free-market economy effective advertising is essential to a company's survival, for unless consumers know about a company's product they are unlikely to buy it. In criticism of advertising it has been argued that the consumer must pay for the cost of advertising in the form of higher prices for goods; against this point it is argued that advertising enables goods to be mass marketed, thereby bringing prices down. It has been argued that the cost of major advertising campaigns is such that few firms can afford them, thus helping these firms to dominate the market; on the other hand, whereas smaller firms may not be able to compete with larger ones at a national level, advertising at the local level or online enables them to hold their own.Finally, it has been argued that advertisers exercise an undue influence over the regular contents of the media they employ--the editorial stance of a newspaper or the subject of a television show. In response it has been pointed out that such influence is counteracted, at least in the case of financially strong media firms, by the advertiser's reliance on the media to convey a message; any compromise of the integrity of a media firm might result in a smaller audience for the advertising.For the assessment, you will write an objective summary of the article. Additionally, you will make an inference about the relationship between advertising and the price you pay for a product and/or service. explore the idea of 'loss if innocence' in the novel Lord of the Flies.plz write a couple of paragraphs. 3.1 plus 7.4 plus 6.9 Please help . Thank you :) helpp ! look at the pic help me asap PLEASE HELP!!! 1. What two events inspired the Twenty-Second Amendment?2. How does the Electoral College work? What ray is between OC and OA? Tell whether the value is a solution of the inequality.yesno