Write a small essay on the origin of life

Answers

Answer 1
Final answer:

The origin of life on Earth is still not fully understood, but there are several theories. Organic molecules may have formed in a reducing or non-reducing atmosphere, and the RNA World hypothesis suggests an RNA-based system.

Explanation:

The origin of life on Earth is a topic that has fascinated scientists for many years. While the exact process is still not fully understood, there are several theories about how life may have originated. One theory suggests that organic molecules were formed in an earthly reducing atmosphere, while another theory proposes that they formed in a non-reducing atmosphere. Additionally, the RNA World hypothesis proposes that life's chemistries originated in an RNA-based system.


Related Questions

In what ways are fats and steroids similar to each other and in what ways are they different?

Answers

fats and steroids are both lipids and hydrophobic. fats store energy for molecules. steroids are messengers around the cell membrane.

Answer:

Similarity between fats and steroids:

Both the fats and steroids share the similar structure. They contains the hydrophobic part and forms the main constituent of the sterols. Both the fats and sterol are involved in the structure of the plasma membrane. Both molecules undergoes the metabolic process.

Differences between fats and steroids:

Fats are used as the storage source of the energy and can be hydrolyzed or broken down in the digestive process. Sterols are the precursors of the hormones and involved in cell signalling and cell - cell communication.

X-1 develops new products specifically for the unique needs of athletes in the endurance, outdoors, and health club categories. from a marketing perspective, endurance, outdoor, and health club athletes represent x-1's ________.

Answers

The answer is Development cost, because X-1 develops new product specifically for the unique needs of athletes in the endurance, outdoors and health club categories. From a marketing perspective, endurance, outdoor and health club athletes. X-1 want to develop.

The organism shown in the drawing usually reproduces through the _________ process called binary fission.

Answers

asexual reproduction

What is a substrate?
a molecule that changes state
a place where the reaction occurs
a place on the product where the enzyme fits
a reactant that is catalyzed by an enzyme

Answers

A substrate is a reactant that is catalyzed by an enzyme.

Answer: A reactant that is catalyzed by an enzyme.

Explanation:

The substrate is the substance or molecule over which an enzymes works during a biochemical reaction. The substrate attach itself to the active site of the enzyme and the enzyme- substrate complex is formed. The substrate is then transformed into products, which get released from the active site of the enzyme. The active site becomes free to accept another substrate molecule to be transformed into product. The enzyme exhibit catalytic property which facilitates the conversion of the substrate into the product.

what drug causes overactive eye movement

Answers

Cocaine causes eye movement.
Hope it helps!

Drugs that cause overactive eye movement are mostly from Stimulants. Like nicotine, cocaine, and Ritalin.

Animated neon signs seem to move even when no physical movement

Answers

This illusion is an example of what you called an INDUCED  MOVEMENT. It is called an induced movement because animated neon signs seem to move even though there is no physical movement in them. Induced movement or induced motion is an illusion in which people tend look into it moving even it is really not moving. 

What is the charge associated with each side of the hf molecule?

Answers

The charge associated with each side of an HF molecule is 6.93Ă—10â»Â˛â°C. The charge on a single electron is 1.60 x 10â»ÂąâąC. How do you find percent ionic character, and what does the value mean? 43.3% If the HF molecule were 100% ionic, the F side would have a charge of â’1, whereas the H side would have a charge of +1. Instead, the F side has a partial charge of â’ 0.433, whereas the H side has a partial charge of +0.433.
Further Explanation

The dipole moment value of a polar compound can be used to estimate the magnitude of the ionic character of the compound. In the HF molecule if the bond is considered to be 100% ionic, the charge on the H + ion and the F- ion is 1.6 x 10-19 C. and the value of the dipole moment becomes like:

ionic = q x d

= 1.60 x 10-19 C x 91.7 x 10-12

= 1, 467 x 10 -29 C.m

= 4.40 D

Ion character == x 100% = 40.05%

so is the HF dipole moment based on the data above the HF ionic character is 40.05%

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Class: college

Subject: biology

Keywords : HF, ionic, dipole, moment.

You have 5mg/ml sample of GST (26kDa). What is the GST concentration in micromolar ?

Answers

you have 5gmg sampel fo gts 26kd90.(.wat the gst conetration inmeiromolar

Answer: 192.3 μM

Explanation:

Equation: (μM ) = ( μg/mL)/( MW in KD)

Convert: 5mg = 5000μg

Plug in and Solve: (μM ) = ( 5000μg/mL)/(26 kDa)

μM = 192.308

May need to adjust for correct sig figs

Why would the male pelvis exhibit more prominent (pronounced) bone markings than the female pelvis?

Answers

The male pelvis exhibit more prominent (pronounced) bone markings than the female pelvis because of the reason the male pelvis has larger leg muscles than the female pelvis. The male pelvis would exhibit more prominent bone markings because they have larger leg muscles.

The male pelvis exhibits more prominent bone markings than the female pelvis due to differences in size and shape. These differences arise primarily from the need to support and facilitate reproduction.

In general, the male pelvis exhibits more prominent bone markings than the female pelvis due to differences in size and shape. These differences arise primarily from the need to support and facilitate reproduction. For example, the female pelvis is wider and shallower to accommodate the passage of a baby during childbirth, while the male pelvis is narrower and deeper to provide stability and support for the heavier upper body.

Some specific bone markings that are more pronounced in the male pelvis include:

The iliac crest: It is higher and more curved in males to anchor the large muscles of the thigh and buttock.The pubic arch: It is narrower in males to provide more stability and support during activities that involve weight-bearing.The sacrum: It is longer and narrower in males to provide a stronger attachment for the spinal column and support the weight of the upper body.

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Mr. ling, age 58, saw his physician for a routine checkup. as part of the physical examination, a stool guaiac test was done to:

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........................, a stool guaiac test was done to DETERMINE THE PRESENCE OF HIDDEN BLOOD IN THE FECES.
The stool guaiac test is one of the tests used in the medical laboratory to detect the presence of occult fecal blood. The test is very sensitive and can detect even minute traces of blood in feces. The test is typically done to detect the presence of blood in the digestive tract. A negative result obtained for the test implied that there is no stool in the blood.

The five-carbon sugar in RNA is called .

Answers

The answer is ribose

Answer:

The answer is Ribose :)

Explanation:

________ play an important role in cell division, and they are made of ________.

Answers

Microtubules (long strands that pull apart the cell but can also hold it together)
Actin (tiny particles that make up the microtubules)

what are some of neurological damages to the structure of the brain?

Answers

If your cerebral cortex, which controls your muscle memory is born smaller, then you will not have full control over your muscles and it will be harder to move around
Hello There!

Aphasia - Damage to the left hemisphere
Epilepsy - Brain can't function properly, causes seizures
Damage to different parts of the brain can cause many different issues

Hope This Helps You!
Good Luck :) 

- Hannah ❤

what is technology A.part of the scientific method B. computer, digital, and synthesized tools c. anything made by humans, as opposed to things made by nature d. none of the above

Answers

The answer is c. anything made by humans, as opposed to things made by nature.

Chickens could not be taught to play baseball because they would chase the ball after it was batted, rather than run to first base. this was an example of _____ because it demonstrated that the chicken's innate pattern of running after food (the ball. took precedence over running toward a stationary object (first base..

Answers

The answer is " instinctive drift".

Instinctive drift also known as instinctual drift is the inclination of a creature to return to instinctive practices that meddle with an adapted reaction. The idea began with B.F. Skinner's previous student Keller Breland and Marian Breland when they endeavored to educate a raccoon to place tokens into a piggy bank.

The described behavior of chickens chasing the ball instead of running to first base is an example of instinctive drift, illustrating the innate nature of their behavior.

The behavior described in the student's question, where chickens chase the ball rather than run to first base, is an example of instinctive drift. Instinctive drift occurs when an animal's innate responses interfere with learned behavior, fostering a return to instinctual behaviors. Option D

This concept is relevant when considering the difference between innate behaviors like reflexes and instincts, and learned behaviors acquired through classical conditioning or operant conditioning.

Instincts are complex, unlearned behaviors that organisms are born with, often involving movement of the organism as a whole and triggered by a broad range of events. Reflexes, on the other hand, are simpler and involve motor or neural reactions to specific stimuli in the environment.

While learned behaviors can be modified by environmental changes, instinctual behaviors are hard-wired and exhibit a strong genetic component, ensuring a typical response to stimuli—like the chickens chasing after a ball as they would with food.

Demography is one of the controllable variables in the external environment.
a. True
b. False

Answers

True. You can relocate humans. While it may not be logical or simple, it is possible to move humans with changes in the external environment occurring following their displacement.

In your own words what is the application of columbia cna with 5 sheep blood agar

Answers

Columbia CNA with 5 Sheep Blood Agar medium is a differential as well as selective medium that is used for the growth of Gram Positive bacteria and inhibits the growth of Gram Negative bacteria. It is an undefined medium that contains sheep blood and yeast extract. It is used for the culture of Staphylococcus, Streptococcus and Enterococcus bacteria.

A surgeon recommends surgery to make the genitals of an intersex infant conform to an ideal of normal genitalia. a sociologist might view the doctor's recommendation as a result of

Answers

Base on the given scenario, a sociologist might view the doctor’s recommendation as a result of belief in a binary sex system of which the social norm is about in terms of topics related with the gender and sex of humans and the doctors recommendations are all because of their beliefs and perspectives that they had acquire.

A sociologist might view the doctor’s recommendation as a result of the belief in a binary sex system. The doctors must often make decisions based on what is immediately in front of them and on all that they themselves have been taught about sex, sexuality and gender. The social norm about sex and gender is built around a binary sex system and so it is not surprising that a doctor might recommend choices based on that perspective.

Where do the light-independent reactions of photosynthesis take place?

Answers

The light-independent reactions, or dark reactions, of photosynthesis are chemical reactions that convert carbon dioxide and other compounds into glucose. These reactions occur in the stroma, the fluid-filled area of a chloroplast outside of the thylakoid membranes.
The light-independent reactions, or dark reactions, of photosynthesis are chemical reactions that convert carbon dioxide and other compounds into glucose. These reactions occur in the stroma, the fluid-filled area of a chloroplast outside of the thylakoid membranes.

In endothermic animals, the color of their brown fat tissue is due to the presence of many mitochondria. how does brown fat tissue serve the animal? it

Answers

It helps transfer energy from food into heat, distribute the produced heat throughout the body, thermoregulate the body, and supplies oxygen and nutrients to tissues.


Explain how corn can be used as an example of Mendel's law of independent assortment.

Answers

An allele a gamete receives for one gene does not influence the allele received for another gene. In other words, one gene does not influence another gene.

An allele a gamete receives for one gene does not influence the allele received for another gene. In other words, one gene does not influence another gene.

Does whater boil at a temperature below 100°c at higher altitudes

Answers

Yes — due to the increased pressure.
________________________________
Note the equation:
_______________________________
PV = nRT ;

When the "pressure" , or "P" increases (as it does at higher latitudes), the "temperature", or "T" will increase.  So, at higher values of "P", the higher the "T" will be.  So increased "P" would result in water boiling, even at values of "T" lower than 100°C .

A fragment of dna was found to have 45 adenine bases and 25 guanine bases. what is the total number of deoxyribose molecules in the molecule?

Answers

Final answer:

The DNA fragment has 45 adenine bases and 25 guanine bases, making a total of 70 bases. Therefore, as each deoxyribonucleotide contains one deoxyribose sugar, the total number of deoxyribose would be 70.

Explanation:

The structure of a DNA molecule is based on nucleotides, each containing a five-carbon sugar called deoxyribose, a phosphate group, and a nitrogenous base. These nitrogenous bases can be adenine (A), guanine (G), cytosine (C), or thymine (T). As the question specifies, the fragment of DNA has 45 adenine bases and 25 guanine bases. Therefore, we can conclude there are 70 deoxyribonucleotides that form part of the DNA strand.

Since each deoxyribonucleotide contains one deoxyribose sugar, the total number of deoxyribose molecules present in the fragment would be equal to the total number of bases i.e. adenine bases + guanine bases, which is 45+25 = 70.

So the total number of deoxyribose molecules in this fragment of DNA would be 70.

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Tendencies developed through evolutionary history that predispose members of a species to learn some associations more readily than others are:

Answers

conditioned responses

Answer:

Biological constraints

Explanation:

Biological restrictions is a term that refers to situations that promote resistance to evolutionary changes in a population. That is, biological restriction occurs when evolution is possible, but there is a factor that prevents the population from evolving. This factor causes a resistance to evolution, causing the population to remain in the same evolutionary state. In other words, we can say that biological constraints are trends developed throughout evolutionary history that predispose members of a species to learn some associations more readily than others.

Cross-matching of blood is ordered for a client before major surgery. what does this process do

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Cross-matching of blood is ordered for a client before major surgery.It Determines compatibility between blood specimens.It is a testing before a blood transfusion to determine if the donor's blood is compatible with the blood of an intended recipient

On admission to the emergency department (ed), pulmonary assessment findings were consistent with a significant left hemopneumothorax. these included:

Answers

These incorporate dyspnea. Dyspnea happens with hemopneumothorax. With horrible open pneumothorax, air enters the pleural space. The regularly negative weight in the pleural space is upset, and the influenced lung is compacted and falls. On the off chance that draining is available from injury, blood, and air consolidated to pack the lung and add to lung fall. The patient with a hemopneumothorax from an open chest wound is extremely dyspneic, with shortness of breath and tachypnea. Chest divider withdrawals, demonstrating expanded work of breathing, may likewise be available. Ready patients with pneumothorax or hemopneumothorax may grumble of pleuritic chest torment and additionally respiratory misery.
Pulmonary assessment findings were consistent with a significant left hemopneumothorax, a combination of two conditions pneumothorax (air in the chest captivity) and hemothorax (presence of blood in the chest captivity), it also includes dyspnea or difficulty in breathing, dullness with percussion on the left side, asymmetric chest wall movement, decreased breath sounds with auscultation on the left side, and an audible sucking sound with inspiration.

Marla is a healthy 30-year-old woman. she doesn't work out, but she consumes protein supplements because she thinks they will increase her muscle mass without the need to exercise. based on this information, the excess amino acids in her diet will

Answers

Answering the question, based on this information, the excess amino acid in her diet will be mostly converted into carbon skeletons and ammonia.

When a person takes excesses of protein supplements, the excess amino acids in the small intestines after protein digestion are moved to the liver. One of the metabolic functions of the liver is to remove excess amino acid in the body, which is discharged as waste because the human body cannot store amino acids or proteins.

Further Explanation

Also, there are types of chemical reactions that take place when excess amino acids are transported into the liver, the product of this reaction forms ammonia, which is very toxic and should not build up in the body. Therefore, the excess ammonia is converted to urea, the urea then forms and moves into the bloodstream which is filtered by the kidney and excreted in the urine

Proper exercise after consuming protein supplements is very essential. Mary’s actions can result in various health problems such as blood vessel disorder, seizures, liver injuries, and even death.

Therefore, Marla should have a work out after consuming protein supplements otherwise the excess amino acid in her diet will be mostly converted into carbon skeletons and ammonia.

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Marla is a healthy 30-year-old woman. she doesn't work out https://brainly.com/question/6117981For the majority of exercisers, adding excess protein or amino acid supplements to an adequate diet will stimulate muscle building https://brainly.com/question/13799397

KEYWORDS:

marlaproteinsamino acidammoniamuscle

A healthy 30-year-old woman consuming excess protein supplements without exercise will likely see the excess amino acids 1) Undergo deamination in her liver, potentially be stored as fat, and will not specifically enhance muscle mass or calcium absorption without the stimulus of exercise.

Given that Marla is a healthy 30-year-old woman who does not work out but consumes protein supplements, the excess amino acids from her protein-rich diet will likely undergo several metabolic processes. Undergo deamination in her liver is one likely outcome. During this process, the amino acids are stripped of their nitrogen-containing amino groups, which are then converted into ammonia and further processed into urea for excretion in the urine. If Marla's diet is especially excessive in protein, it could lead to her body converting and storing the excess as fat rather than adding it to her muscle tissue without exercise to stimulate muscle growth.

It is important to note that consuming high levels of amino acid supplements without corresponding exercise may not lead to an increase in muscle mass and can disrupt the balance of amino acid absorption due to competition for transport systems. As such, the excess amino acids will not be added to her muscle tissue (option 2) without exercise, nor specifically enhance her body's absorption of calcium (option 4). If energy needs are met, they are also not likely to be metabolized for energy quickly (option 3).

If a female with genotype dd mates with a male of genotype dd, what are the possible genotypes of the haploid gametes they produce?

Answers

If the female with genotype dd mates with a male with genotype dd. The possible haploid gametes will be d. According to punnet square since both parents are dd then all of their offspring will also be dd which is diploid therefore the haploid will be d.

If a female genotype Dd mates with a male genotype dd, the possible genotypes of the haploid gametes they produce is Dd, and dd.

Further Explanation:

Genotypes help in the genetic makeup of any individual. Phenotype describes as a physical characteristic of an individual. The genotype is responsible for the phenotypes of any individual. If two copies of the same alleles present in an organism, its genotype is called homozygous. If two copies of different alleles present in an organism, its genotype is called heterozygous.

When a homozygous dominant individual is crossed with the homozygous recessive individual the resultant offspring has the genotype which is heterozygous and phenotype which is dominant. All possible genotypes of the parent as well as offspring are graphically represented in a Punnett square.

In a given punnett square below, the female of genotype Dd crossed with dd genotype male. They produce two kinds of genotype Dd and dd.

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Answer Details:

Grade: High School  

Subject: Biology

Chapter: Mendelian Inheritance

Keywords:

Punnett square, genotype, phenotype, homozygous, heterozygous, allele, characteristics, male, female, dominant, recessive.

Which of the following shows the correct order in which genes are expressed?

A. RNA to DNA to proteins
B. DNA to proteins
C. RNA to proteins to DNA
D. DNA to RNA to proteins

Answers

The answer is D.DNA to RNA to proteins

A DNA segment that makes up a gene is read and converted into a single-stranded RNA sequence during transcription. From the nucleus, RNA travels into the cytoplasm. Thus, option D is correct.

What can be best define about Central dogma?

The core dogma depicts the replication of DNA, the transcription of DNA into RNA, and the translation of RNA into proteins, as well as the flow of genetic information inside cells.

An identical copy of a double-stranded nucleic acid is produced through duplication. The genetic information is preserved during this procedure.

The core tenet of molecular biology is the transmission of genetic information from DNA to RNA to protein.

Gene mutations can have an impact on the proteins they produce, and some mutations can result in disease.

Therefore, central dogma follow the DNA to RNA to proteins.

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Describe how energy flows into, through, and out of the owl's food web.

Answers

Prey- a animal that is hunted for food by another animal Predator and Prey When a consumer (animal) eats a producer (plant), it receives some of the plant's energy.Flow of Energy * A food chain shows the path of food energy from plants to animals. * Each food chain is different depending on the ecosystem.Apr 2, 2013
Final answer:

Energy flows into, through, and out of the owl's food web as organisms transfer and use energy. The primary source of energy is photosynthetic vegetation consumed by herbivores, which is then passed on to the owl and other organisms in the food web.

Explanation:

Energy flows into, through, and out of the owl's food web in a series of transfers between different organisms. The primary source of energy in the owl's food web is the photosynthetic vegetation that the herbivorous prey consumes. When the owl preys on the herbivores, it acquires a portion of the energy stored in the prey's body. This energy then flows through the owl's food web as it consumes other organisms, and is eventually lost as heat or used by other organisms in the ecosystem.

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Where can earthquakes occur?A) at a divergent plate boundaryB) at ALL plate boundariesC) at a convergent plate boundary Use distributive property and partial products to find 7 x 12 A father takes his young daughter to the park. the girl grabs a red flower and is stung by a bee. the next day, the girl's grandmother brings her a bouquet of red flowers. when the girl sees the flowers, she becomes afraid and runs away. in this example, the conditioned stimulus is the the line parallel to x-3y=-12 that passes through (-3,4) Which number represents the era in which Chief William McIntosh signed the Treaty of Indian Springs? A) 2 B) 3 C) 4 D) 5 Did democratic changes in the age of jackson have a greater political or economic impact How do you write 6.67 102 in standard form Which of the following is a counterexample to "the sum of two numbers is always greater than either of the numbers"? A factor that promotes maximum production of atp in cellular metabolism is the presence of Which kind of transport do white blood cells use when they engulf and destroy bacteria? Economist anthony downs's _____ suggests that voting is not economically logical. Which is a characteristic of the young narrator in the memoir "A Cub Pilot"? A.piousness B.blind optimism C.self-doubt D.total incompetence Can you help me only with the highlighted part I know the rest thank you __(table: turkeys) examine the table turkeys. trader tom is a monopolist that sells fried turkeys for thanksgiving dinner for a constant marginal and average cost of $10 per turkey. assume that tom has no fixed cost. tom has 6 potential customers, each of which will buy at most one turkey if the price is just equal to or lower than their willingness to pay, which is shown in the table. if tom acts as a single-price monopolist to maximize profits, what price will he charge for each turkey? $30 $20 $15 $5 Terrible cold and starvation. Only help from Squanto and other Indians saved them. Who does this describe? A. Pilgrims during their first winter in America B. survivors of a shipwreck near Massachusetts C. Jamestown settlers D. the first women to reach Virginia _______ represents what future owners will pay present owners for their business. Aand B are vertical angles with mA=xand mB=4x30.What is mA? Lucys mom gave Lucy and her 3 friends an equal amount of juice from the 30 ounces she had left. How much juice did each person receive?Choose all answers that are correct. According to vygotsky, ______________ is a range of tasks that a child cannot yet handle alone but can do with the help of more skilled partners. estimating products of fractions how do you figure 3/8 15 Steam Workshop Downloader