Biology High School

(vii) All the activities of a cell is controlled by?​

Answers

Answer 1

Answer:

nucleus

Explanation:

The nucleus controls all of the cell's activities, such as growth and metabolism, using the DNA's genetic information. Within the nucleus is a smaller structure called the nucleolus, which houses the RNA (ribonucleic acid).

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Related Questions

how can one eukaryotic gene lead to one transcript, but multiple different proteins?

Answers

Answer:

source- The ability of certain genes to form multiple proteins by joining different exon segments in the primary trans-cript is called alternate splicing and has caused a reexamination of the concept of “one gene, one protein.

Scientists have long known that it's possible for one gene to produce slightly different forms of the same protein by skipping or including certain sequences from the messenger RNA. ... Human genes typically contain several "exons," or DNA sequences that code for amino acids, the building blocks of proteins.

in your own words-

the flexibility of bound factors to make multiple proteins by connection totally different DNA segments within the primary trans-cript is termed alternate junction and has caused a reexamination of the thought of “one gene, one macromolecule.

Scientists have long noted that it's attainable for one factor to provide slightly totally different styles of a similar macromolecule by skipping or together with bound sequences from the informational RNA. ... Human genes usually contain many "exons," or desoxyribonucleic acid sequences that code for amino acids, the building blocks of proteins.

Explanation:

hope this helps, the source is where i got my information and the in your own words is it fully rewritten for you! also have a wonderful day/night!

Why do the alveoli fill with fluid.

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Answer:

Your lungs contain many small, elastic air sacs called alveoli. With each breath, these air sacs take in oxygen and release carbon dioxide. Normally, this exchange of gases occurs without problems. But sometimes, the alveoli fill with fluid instead of air, preventing oxygen from being absorbed into your bloodstream.

Explanation:

Answer:

The fluid represents the outermost layer of the alveolar surface that is directly exposed to air and thus to the environment. Alveolar fluid prevents desiccation of the epithelial cells and also functions as a physical protection barrier against inhaled particles and irritants.                                        Explanation:     hope this helps

Hurricane Katrina chart

Please I’m doing a project and I need help ! I’ll give 20 points and maybe even brainliest

Answers

Answer:

r

Explanation:

What is both the thickest and longest nerve in the body?

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Answer:

The sciatic nerve

Explanation:

I need help with one paragraph.

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Answer:

paano nyo po ginawang dalawa po yung picture?

Explanation:

nakakonek ka po sa U.S.A dun po kayo sa Philippines po punta ka settings mo tapos pindutin mo yung change hanapin mo yung Philippines tapos pindutin mo,gumawa kana ng isang account mo,, Virtuoso na ako don,,,dadami followers mo,marami din sasagot sa question mo,marami din mamigay ng points

When testing the effect of light on flowering patterns of plants, temperature would be considered a?
A.independent variable
B. dependent variable
C. constant

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Answer: Independent Variable

Explanation: Already explained this one in another post.

A. Independent variable

The cranial nerves a part of which nervous system?

Answers

Answer:

a. Peripheral

Explanation: is correct

1. What happened to the pH of the substances when the size of the sample was increased or
decreased?

2. What happened to the pH when the sample was diluted? Did the material change from its original classification as an acid/base/ or neutral?

3. Describe a neutralizing reaction and give the neutral products?

4. Predict the general pH that is the result of combining a strong acid with a weak base?

Answers

Explanation:

An acid-base reaction or neutralization reaction is a chemical reaction that occurs between an acid, for example hydrochloric acid, and a base, sodium hydroxide.

The word "salt" describes any ionic compound whose cation comes from a base (Na + from NaOH) and whose anion comes from an acid (Cl- from HCl). Neutralization reactions are generally exothermic, which means that they give off energy in the form of heat. They are often called neutralization because when an acid reacts with a base, they neutralize each other's properties.

There are several concepts that provide alternative definitions for the reaction mechanisms involved in these reactions, and their application to related problems in solution. The word neutralization can be interpreted as annihilation or as elimination, which is not far from the truth. When an acid is mixed with a base both species react to different degrees that depend largely on the concentrations and volumes of the acid and the base can be considered as an illustration the reaction of a strong acid that is mixed with a weak base, this The latter will be completely neutralized, while a portion of the strong acid will remain in solution, depending on the moles that reacted with the base. Three additional alternatives that arise from mixing an acid with a base can be considered:

A strong acid is mixed with a strong base: When this happens, the species that will remain in solution will be the one that is in greater quantity than the other.A weak acid is mixed with a strong base: The solution will be basic, since it will be the base that remains in the reaction.A weak acid is mixed with a weak base: If this happens, the acidity of a solution will depend on the acid constant of the weak acid and the concentrations of both the base and the acid.Despite the differences in definitions, its importance is evident in the different methods of analysis, when applied to acid-base reactions of gaseous or liquid species, or when the acidic or basic character may be somewhat less evident. The first of these scientific concepts of acids and bases was provided by the father of chemistry, the Frenchman Antoine Lavoisier, around 1776.

Sưa Sống ở đâu cách di chuyển cấu tạo tao dinh dưỡng bằng gì

Answers

Explanation:

Sưa Sống ở đâu cách di chuyển cấu tạo tao dinh dưỡng bằng gì

can you write questions in english

Choose one of the food chains
shown within the food web in Figure 4-3. Write
a paragraph describing the feeding relation-
ships among the organisms in the food chain.

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Answer:

I can't see the figure so sorry I can't answer

Besides DNA, this is also duplicated during interphase.

Answers

Answer:

RNA!

Explanation:

it also goes through interphase

noni fruit as an antibiotic

Answers

Answer:

Noni fruit juice has been reported for its various functional effects including antibacterial activity.

URGENT MY PROJECT IS DUE TOMORROW

IS CELL REPLICATION BASICALLY MITOSIS?

Answers

Answer:

Yes, mitosis means each cell is replicated perfectly without any changes or alterations.

This process involves replication of the cell's chromosomes, segregation of the copied DNA, and splitting of the parent cell's cytoplasm.

after death, the cornea absorbs fluid and becomes opaque. in a living person, the cornea is translucent due to _______________.

Answers

Given what we know about human anatomy, we can confirm that the cornea of a live human is translucent due to the arrangement of its collagen fibers and the lack of vascularity.

One important factor in the translucent nature of the cornea and lens is its lack of vascularity. This area of the eye has few if any vascular components, which contributes to its lack of pigment.

However, the main component that contributes to the translucent nature of the human cornea is its very specific arrangement of collagen fibers.

The bundled nature of these fibers, together with the water content of the cornea, allow it to remain translucent.

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Which unit should be used when measuring the height of an adult?

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Answer:

Feet and inches, or centimeters unit should be used when measuring the height of an adult

Explanation:

Which of the following statements is TRUE if Joel and Karen are doing exactly the same things, but Joel has a higher metabolic rate than Karen?

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Answer:

a. Joel burns more calories than Karen.

Explanation: is correct

What is the grouping of organisms by their energy source

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Cell-tissue-organ-organ system-organism

Do copd sufferers die of respiratory causes or other causes?

Answers

Answer:respitory cuz

Explanation:e

What does a ribosome do.

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The ribosome reads the sequence of the messenger RNA (mRNA) and, using the genetic code, translates the sequence of RNA bases into a sequence of amino acids.
A ribosome is a cellular particle made of RNA and protein that serves as the site for protein synthesis in the cell. The ribosome reads the sequence of the messenger RNA (mRNA) and, using the genetic code, translates the sequence of RNA bases into a sequence of amino acids.

What person is in this image?

Answers

Answer:

bts petson

Explanation:

look

Processes that add carbon to the atmosphere are called what

Answers

Answer:

Combustion

Explanation:

Both the mother and father of a son with colorblindness have normal vision. From whom did the son inherit the gene for colorblindness

Answers

Answer:

The blind son inherited his gene for colorblindness from his father.

Explanation:

The X chromosome is where color blindness is most frequently inherited as a recessive trait. In genetics, this is referred to as X-linked recessive inheritance. As a result, men tend to be affected by the illness more frequently than women (8% male, 0.5% female).

What are the characteristics of colorblindness inheritance?

There is a 50% chance that the sons of a color-blind father and a mother who has the gene will also be color-blind. However, their daughters will have a 50% risk of having the condition and a 100% chance of carrying the gene.

The 23 chromosome is known as the “sex chromosome,” and it is passed from mother to son. Red/green color blindness is the most common type of this condition.

As it aids in identifying sex, the 23rd chromosome is known as a sex chromosome.

Therefore, The blind son inherited his gene for colorblindness from his father.

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All the offspring of a cross between a black-eyed mendelian and an orange-eyed mendelian have black eyes. This means that the allele for black eyes is ________ the allele for orange eyes.

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I'm not sure what exactly the blank is but I do know it should be something like Dominant. Try putting "dominant over" in the blank. I hope I could help!

Why does DNA need to replicate before cells divide?

Answers

Answer:

Below:

Explanation:

Replication is an essential process because, whenever a cell divides, the two new daughter cells must contain the same genetic information, or DNA, as the parent cell. ... Once the DNA in a cell is replicated, the cell can divide into two cells, each of which has an identical copy of the original DNA.

whenever a cell divides, the two new daughter cells must contain the same genetic information, or DNA, as the parent cell.

deoxygenated blood is transported to the pulmonary capillaries in the lungs by the pulmonary veins; oxygenated blood is transported away from the pulmonary capillaries by the pulmonary arteries is false

Answers

Answer:

no it is not false can be transported

what occurs during a point (substitution) mutation?

Answers

Answer:

A point mutation or substitution is a genetic mutation where a single nucleotide base is changed, inserted or deleted from a DNA or RNA sequence of an organism's genome.

Explanation:

Hope this helps!

18. In pea plants, the seed coat can be green or white. Green is dominant over white.
Construct your own Punnett square that involves one white parent in which 50% of the
offspring can be predicted to have green seed coats.

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Aa * aa

⇒ 50% Aa (Green)

⇒ 50% aa (White)

Match each brachial spinal nerve with the correct label.

Answers

Answer:

yes those are the correct answers labeled.

Explanation: post protected

Genes which are expressed all the time.

Answers

Genes that are expressed all the time are dominant ones. They can also be seen all the time if it is a genotype(ie. eye color, hair color, etc.)

What kind of reproduction dose most plants go through?
(i know the answer but do you)

Answers

Answer:

asexual

Explanation:

photosynthesis i believe
Other Questions
defenation of of acid , base , and salt Some students have a goal of collecting 200 leaves for a science project. What does 0% of the goal mean in this situation? What does 100% mean? A gym is offering a deal to members. Customers can sign up by paying a registration fee of $100 and $28 per month. The function that models this situation is c(m) = 28m + 100, where m is the number of months and c(m) is the cost of becoming a member.Determine:6. the shape of the graph7. the independent and dependent variables8. the domain and range9. Interpret the slope and y-intercept values10. How much will the membership cost for a whole year? Jacob followed a recipe that requires 2 cups of water for ever 3 cups of flour. If heused 8 cups of flour, how many cups of water did he use?2 2/345 1/312 Thank u SOOOOOOOOOO much if u helped me Why was Rasmira punished with a mattuger Which option is a key point of cell theory? Cells can repair neighboring cells, but not themselves.Cells can repair neighboring cells, but not themselves. , , Cells are the basic structural unit of all living organisms.Cells are the basic structural unit of all living organisms. , , All cells that make up an organism are similar to each other.All cells that make up an organism are similar to each other. , , Some cells can burn food molecules to release energy, but some cannot. How many moles of NaOH are present in 12.0 mL of 0.110 NaOH? Moles: ___________ A cylinder has a volume of 33,912 units3 and aheight of 12 units. What is the diameter of thecylinder? What percentage of Africans live in sub-Saharan Africa ?A. less than 10% B. about 50 % C. about 65% D. about 85 %Not sure if is b or c or d Modeling with Systems how do you do this? a.Write the equation in slope intercept form of a line that goes through the points(-7, 10) and (1,4). Hint: once you find m, you will need to solve for b PLEASE HELP ILL MAKE YOU BRAINLEST AND GIVE YOU 20 POINTS Reflect upon your analysis, and write a two-paragraph reflection of at least 200 words. In the first paragraph discuss what elements of your outline are successful. Consider details you included, and the organizational structure of your outline. In the second paragraph discuss the elements of your outline that could benefit from further development. Consider important details you may have omitted, and reflect upon your outline organization. Use specific details from your writing. 12. _____ your sister go to school?A. Arent B. Isnt C. Dont D. Doesnt13. My parents _____ to live in the city.A. arent like B. like C. likes D. dont likes Did America have the right to take over other nations ? Why or why not A Projectile of mass 0.277 kf is shot from a cannon. The end of the cannon's barrel is at heiht 6.8 m. The initial velocity of the projectile has a horizontal component of 6.1 m/s. The projectile rises to a maximum height above the end of the cannon's barrel and strikes th ground a horizontal distance past the end of the cannon;s barrel. What is the time it takes for the projectile to reach its maximm height? The acceleration of gravity is 9.8 m/s^2. I WILL MARK BRAINLIST IF CORRECT !! Explain why opening a parachute can slow a skydiver down to a safe landing speed. You can add drawings to aid your explanation Questions1. Which of the following BEST describes how Nick feels during dinner with the Buchanans? a. Captivated and curious b. Uncomfortable and overwhelmed c. Jealous and skeptical d. Enthralled and excited2. Which piece of textual evidence BEST supports the answer to the above question? a. They [Daisy and Miss Baker] were here, and they accepted Tom and me, making only polite pleasant effort to entertain or be entertained. They knew that presently dinner would be over and a little later the evening, too, would be over and casually put away. b. I am not even faintly like a rose. She [Daisy] was only extemporizing, but a stirring warmth flowed from her, as if her heart was trying to come out to you concealed in one of those breathless, thrilling words. c. The telephone rang inside, startlingly...I was conscious of wanting to look squarely at every one, and yet to avoid all eyes...To a certain temperament the situation might have seemed intriguing--my own instinct was to telephone immediately for the police. d. Daisy took her face in her hands as if feeling its lovely shape, and her eyes moved gradually out into the velvet dusk. I saw that turbulent emotions possessed her, so I asked what I thought would be some sedative questions about her little girl.3. Read the following excerpt describing the Valley of Ashes: About half way between West Egg and New York the motor-road hastily joins the railroad and runs beside it for a quarter of a mile so as to shrink away from a certain desolate area of land. This is a valley of ashesa fantastic farm where ashes grow like wheat into ridges and hills and grotesque gardens, where ashes take the forms of houses and chimneys and rising smoke and finally, with a transcendent effort, of men who move dimly and already crumbling through the powdery air. Occasionally a line of grey cars crawls along an invisible track, gives out a ghastly creak and comes to rest, and immediately the ash-grey men swarm up with leaden spades and stir up an impenetrable cloud which screens their obscure operations from your sight. But above the grey land and the spasm of bleak dust which drift endlessly over it, you perceive, after a moment, the eyes of Doctor T.J. Eckleburg. The eyes of Doctor T. J. Eckleburg are blue and gigantictheir retinas are one yard high his eyes, dimmed a little by many paintless days under sun and rain, brood on over the solemn dumping ground. The valley of ashes is bounded on one side by a small foul river, and when the drawbridge is up to let barges through, the passenger on waiting trains can stare at the dismal scene for as long as half an hour. There is always a halt there of at least a minute and it was because of this that I first met Tom Buchanans mistress. Which of the following BEST describes the mood of this excerpt? a. Serious and somber b. Frightening and mysterious c. Dreary and depressing d. Transcendent and obscure A producer of pottery is considering the addition of a new plant to absorb the backlog of demand that now exists. The primary location being considered will have fixed costs of $9,200 per month and variable costs of 70 cents per unit produced. Each item is sold to retailers at a price that aver- ages 90 cents. a. What volume per month is required in order to break even? b. What profit would be realized on a monthly volume of 61,000 units? 87,000 units? c. What volume is needed to obtain a profit of $16,000 per month? d. What volume is needed to provide a revenue of $23,000 per month? e. Plot the total cost and total revenue lines. Based on the passage, which of the following is not a role that conflict plays?Aguiding the plotBadding tension and actionCchanging the readers mindDmaking the story more interesting write the equation of a line that is perpendicular to 2x+4y= 14 a need goes through (4,6)