15834 joules is the thermal energy required.
Explanation:
Specific heat capacity of benzene= 1.74 J/gK or 1740 J/Kg K
mass of benzene = 0.455 kg
temperature change= 50-30
= 20 degrees
From the formula:
Specific heat capacity= thermal energy/ (mass)*(temperature change)
thermal energy= 0.455* 1740*20 ( speicfic heat of benzene is converted
to joules per gram)
= 15834 joules
How is the temperature of a liquid substance affected when it is boiling?
OA) It increases.
OB) It decreases.
OC) It stays the same.
Answer: It increases
Explanation: A liquid boils at a higher temperature. When heat is applied to the liquid, the temperature increases until it reaches its boiling temperature (boiling point), a temperature at which it starts to boil. For instance pure water boils at 100°C and freezes at 0°C. As the liquid continues to boil, the temperature continues to increase.
how can humans have 1 of 4 different blood types?
Answer:
Blood type is an example of multiple alleles. That means there are more than 2 genes for a particular trait.
Explanation: A person can inherit:
AA or AO and be type A blood
BB or BO and be type B blood
AB and be type AB blood
OO and be type O blood
What is a cell made out of
Answer:
Two-thirds of a cell is water, which means that two-thirds of your whole body is water. The rest is a mixture of molecules, mainly proteins, lipids and carbohydrates.
What is a force?
A.
A force is a push or a pull.
B.
A force is a substance that reacts with matter.
C.
A force is equivalent to work.
OD.
A force is a form of energy.
Reset
Submit
Ans is Force means a push or pull.for eg:pull a door,push a door.
Hope this will help u.
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What percent of our atmosphere is made up of nitrogen
Answer:
78%
Explanation:
The atmosphere is made up 78% of nitrogen and 21% of oxygen
Answer:
78%
Explanation:
The answer will be 78%
Explain the function of Chromosomes. Use your knowledge of genes and DNA to
give your answer.
Final answer:
Chromosomes are structures comprised of DNA and proteins that contain genes, which code for proteins responsible for various traits and functions in the body. Humans have 23 pairs of chromosomes, including autosomes and sex chromosomes, with approximately 20,000 to 22,000 genes.
Explanation:
Chromosomes are essential structures within the cells of our body that carry out a vital role in heredity and gene expression. They are coiled structures composed of DNA and proteins, specifically histones, which help organize and condense the DNA into a compact form that can fit within the nucleus of a cell. During cell division, chromosomes ensure that DNA is accurately replicated and distributed to each new cell.
DNA within chromosomes is segmented into units called genes, which harbor the instructions for making proteins, the building blocks of our body. These proteins perform a multitude of functions, including building cellular structures, carrying out metabolic reactions, and responding to environmental signals.
Human cells normally contain 46 chromosomes, arranged in 23 pairs. Twenty-two of these pairs are autosomes, with the remaining pair being the sex chromosomes (XX in females, XY in males). The estimated 20,000 to 22,000 human genes are responsible for a huge variety of traits and functions. Genes contain the specific sequences of DNA that are transcribed and translated to create proteins. Each gene has multiple forms or alleles, which can result in variations in the physical manifestation of a genetic trait.
What is the role of RNA polymerase?
It creates the DNA strand.
It bonds the DNA strand.
It helps transcribe the DNA strand.
It translates the DNA strand.
Answer:
RNA polymerase transcribes the DNA strand and synthesis RNA from a DNA template
The role of RNA polymerase is it helps in transcribing the DNA strand and forms mRNA (messenger RNA). Thus, the correct option is C.
What is Transcription?Transcription is the process of copying or transcription of a segment of DNA into RNA that is messenger RNA (mRNA). The segments of the DNA sequence transcribed into mRNA molecules that can encode specific proteins, which are said to produce messenger RNA. Other segments of the DNA molecule are copied into RNA molecules called non-coding RNAs (ncRNA). mRNA comprises only 1-3% of the total RNA samples.
Transcription occurs in the nucleus of the cell and the mRNA formed from this process is sent to the ribosomes for translation. The major steps of transcription include initiation, promoter clearance, elongation, and termination step.
Therefore, the correct option is C.
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B is a gene for blue feathers,and b is a gene for red feathers. Two heterozygous birds have an offspring. What percentage chance does it have for red feathers. A 0 b 25 C
75 or D 100
Answer: b) 25
Explanation: B is a gene for blue feathers and b is a gene for red feathers, the genotype for a heterozygous bird is Bb. A cross between two heterozygous birds will produce 1BB, 2Bb and 1bb. Genotype BB and Bb will manifest outwardly as blue feathers while Bb will manifest as red feathers. Only one out of the four offsprings are red feathered. The percentage of the offsprings that are red feathered is 1/4 x 100 = 25
See attached for more information
When crossing two heterozygous birds (Bb) for feather color, the offspring have a 25% chance of being homozygous recessive (bb) and having red feathers. This is determined by the Punnett square, which predicts the genotypes of the offspring from the parental genes. B)
The question is asking about the probability of offspring with a particular phenotype given the genotypes of the parents. In this case, B represents a gene for blue feathers, which is dominant, and b is a gene for red feathers, which is recessive. When two heterozygous birds (Bb) are crossed, the Punnett square analysis reveals the probabilities for the offspring's genotypes and phenotypes.
Here is how you would set up the Punnett square:
Place one parent's alleles at the top of the Punnett square, B and b.
Place the second parent's alleles on the left side of the Punnett square, B and b.
Fill in the squares by combining the alleles from each parent to predict the potential genotypes of the offspring.
The resulting genotypes of the offspring will be:
BB (blue feathers, because B is dominant)
Two squares of Bb (also blue feathers because B is dominant)
One square of bb (red feathers because there is no dominant B allele present)
Thus, there is a 25% chance that an offspring will have red feathers (genotype bb).
So the correct answer is B, 25% chance for an offspring to have red feathers.
When people deciphered DNA, they put it _______________.
a. on the internet
b. in a top-secret government computer
When people deciphered DNA, they put it in a top-secret government computer
Answer: Option B
Explanation:
The deciphering of DNA present the genealogy of the person whose DNA has been deciphered. When someone that is a scientist deciphers DNA on someone request, to produce their genealogy and family tree, that is put on internet.
The top secret government computer builds the DNA data base, named CODIS, thereby, now when the DNA deciphering is in use for surveillance purpose and building Human Genome on whole within the Human Genome Project. The top secret government computer is not accessible by any civilian and is under military control for vigilance.
Will give Brainliest to the 1st person to answer this question! Explain at least two positive effects of the cell cycle on the human body. Use complete sentences.
Bet!
One of the two positive effects of the cell cycle would be how the immune system benefits because the cell cycle makes more white blood cells.
Unfortuantely I don't have any more than that so but this was the best i could remember good luck!~
Answer:
This is just to give the person above brainliest. But my answer is below
Explanation:
The human body would have more fresh cells and it would have more white cells which help the immune system
some substances such as mercury tend to be found in increasing concentrations as one moves up the food chain. what is the term for this?
Answer:
Biomagnification
Explanation:
Biomagnification can simply be described as the increase in the concentration of a toxin in the tissues of organisms as one moves up in a food chain. There might be a number of reasons for this increase in concentration of the toxin. Some of the reasons are:
The toxin, such as mercury, cannot be broken down in the bodies of the organisms.When the concentration of the toxin might increase as one moves up a food chain.A 10-kg wagon has a speed of 25 m/s. What is its momentum?
If a 10-kilogram wagon has a speed of 25 meters per second, the momentum of the wagon would be 250 kilograms-meter / second.
What is momentum?It can be defined as the product of the mass and the speed of the particle, it represents the combined effect of mass and the speed of any particle, and the momentum of any particle is expressed in Kg m/s unit.
As given in the problem If a 10-kilogram wagon has a speed of 25 meters per second, then we have to find the momentum of the wagon,
The momentum of the wagon = mass * speed of the wagon
=10*25
=250 kilogram -meters / seconds
Thus, If a 10-kilogram wagon has a speed of 25 meters per second, the momentum of the wagon would be 250 kilograms-meter / second.
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1 Point
Imagine that the population of moose in Yellowstone National Park
decreased after a particularly harsh winter.
How would a fast running speed be advantageous to a moose in this
population?
O
A. The moose would be more able to avoid predators.
O
B. The moose would be more able to defend its territory.
O
C. The moose would be more able to chase and catch prey.
O
D. The moose would be more able to protect its offspring.
SUBMIT
The answers are.
A. The moose would be more able to avoid predators.
C. The moose would be more able to chase and catch prey.
Explanation:
This moose population can use their speed to protect themself from the predators, but only protecting themself from predators won’t help them for their survival. They need food to live. Speed will help them to chase and catch the pray also. Since the population of moose in the Yellowstone National Park is less for them, it is very difficult to protect their territory by using their speed. They can use their speed to chase their prey. Maybe while chasing they ended up facing their predators, but they can use their speed to escape from them. Later, this will help them to make offspring also. Moose will be able to protect their offspring by running, but they should give food to the offspring also to survive.Answer:
A
Explanation:
14. What is the function of the ribosome in a cell?
A. production of ATP
B. absorption of sunlight
C. packaging proteins into membrane-bound vesicles
D. addition of amino acids to growing polypeptide chains
Answer:
C
Explanation:
Ribosome help to pack protein into membrane-bound vesicles
Sandy completed pH and fecal coliform tests on water samples from the pond in her backyard. She reported the results in the following charts.
Two graphs showing water-quality indicators for Sandy's pond over one year. The graph labeled 'pH' shows that the pond's pH flu
© 2010 FLVS
What can you conclude about the water quality of Sandy's pond over the past year? Explain. (5 points)
The water quality of the pond is worst in month of June and July. And the pH of the pond is mostly acidic, but went from alkaline in month of April. A.
Explanation:The pond quality assessment requires the measure of the pH of the water of pond and the number of colonies of bacteria and presence of other organisms in pond and their assessment. The report given here shows the variation of pond water pH for about 10 months and the colony count per liter for 10 months.
Here in the graphs given, we can see that the pond water quality got worst in month of June and July, because in those months, the water got the most number of faecal coliform bacteria. This is mainly because the months of June and July are the monsoon season, and the water sweeping from different areas of soil got the fecal coliform bacteria into the pond which helped in their growth and increased numbers.
In the month of March, the pH got to the highest of 7.5 which is because the March season don't generally get too much rainfall which is why the water concentration decreases and the growth of different other bacteria and plants make the water alkaline.
2 Points
What question did Hardy and Weinberg want to answer?
O
A. Are all traits in plants controlled by genes?
O
B. Is it possible to breed a plant to have certain traits?
O
C. How does allele frequency change between generations?
O
D. How large is the gene pool for a given organism?
SUBMIT
Answer:
the answer is C. How does allele frequency change between generations?
hope it helps!
Answer: c
Explanation:
Choose the answer that best describes gravity.
Question 2 options:
Gravity only works between planets.
Gravity is a contact force that holds objects down on Earth.
Gravity is a contact force that holds the Moon in orbit around Earth.
Gravity is a non-contact force that holds the Moon in orbit around Earth.
"Gravity is a contact force that holds objects down on Earth" best describes gravity.
Answer: Option B
Explanation:
Gravity is the force which attracts two bodies one to the other. It is the force which causes objects in the air to fall to the ground and keeps the planets around the sun in their orbit. The greater an object's mass, the greater its gravitational power.
Gravity declines with elevation, near the Surface of the earth (sea level), so that at one-half of the Earth's radius, linear extrapolation will give zero gravity. The gravity of Planet originates from all of its mass. All its mass causes the whole mass in one's body a collective gravitational pull on.
2. The conversion of light energy into chemica
bond energy occurs within the cells of (1
molds (2) yeasts (3) algae (4) grasshoppers
Answer:
3
Explanation:
Any answers are appreciated. In science, what are the characteristics of a stable society?
Answer:
means when the population in the society is in equilibrium and the people are at peace and calm with each other and thus they accept their position in the society is called as stable society.
Explanation:
Adequate socialization,social integration is important and are the necessity for building a stable society.
Social institution perform function to ensure stability in a society.
The population in the society should be in a stable condition.
A stable society should be self sustaining.
It should have social institutions such as educational institutes, political institutes, religious institutes, etc.
It should be well organized.
At what depth(km) would a rock experience temperature of 5500C?
Answer:
The temperature is around 1000°C at the base of the crust, around 3500°C at the base of the mantle, and around 5,000°C at Earth's centre. The temperature gradient within the lithosphere (upper 100 km) is quite variable depending on the tectonic setting.
Explanation:
How does the mitochondrial inner membrane being impermeable to protons allow chemiosmosis to occur?
Answer:
The inner mitochondrial membrane thus represents the principal site of ATP generation, and this critical role is reflected in its structure. Otherwise, the inner membrane is impermeable to most ions and small molecules—a property critical to maintaining the proton gradient that drives oxidative phosphorylation.
Explanation:
I need an example of Bacteria, Archaea, and Eukarya.
Answer:
Both Bacteria and Archaea are prokaryotes, single-celled microorganisms with no nuclei, and Eukarya includes us and all other animals, plants, fungi, and single-celled protists – all organisms whose cells have nuclei to enclose their DNA apart from the rest of the cell
Bacteria, Archaea, and Eukarya are three domains of life. Bacteria are prokaryotic organisms, while archaea are also prokaryotic but have unique characteristics.
Explanation:Eukarya include plants, animals, fungi, and protists, and are characterized by having a nucleus and membrane-bound organelles.
Bacteria: An example of bacteria is E. coli, which is commonly found in the intestines of humans and other animals. Bacteria are prokaryotic organisms that lack a nucleus and membrane-bound organelles.
Archaea: Methanogens are an example of archaea. They are found in environments such as swamps and produce methane gas as a byproduct of their metabolism. Archaea are also prokaryotic organisms, but they have unique genetic and molecular characteristics.
Eukarya: Plants, animals, fungi, and protists all belong to the domain Eukarya. An example of a eukaryotic organism is a rose plant. Eukarya have a nucleus and membrane-bound organelles.
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Where do plants get the energy they need to produce food?
Answer:Plants make food in their leaves.
Explanation: The leaves contain a pigment called chlorophyll, which colors the leaves green. Chlorophyll can make food the plant can use from carbon dioxide, water, nutrients, and energy from sunlight. This process is called photosynthesis.
Answer:
plants get the energy they need to produce food from the sun
Using the genotypes and phenotypes provided from the iguana gene pool, which statement is NOT correct?
Answer:
D) Crossing an iguana with webbed feet with one with no webbing would produce iguanas ALL with no webbing because this is the dominant trait.
Explanation:
I just did the usatestprep and got it right ;)
Answer
IF YOUR ON usa testprep the answer would be D...
Crossing an iguana with webbed feet with one with no webbing would produce iguanas ALL with no webbing because this is the dominant trait.
The force that contributed to the formation of planets, determines the motion of bodies in the solar system, and pulls objects to the center of Earth is called ____.
The principle that states that an object at rest will stay at rest and that an object in motion will stay in motion is the law of _____.
Answer:
The force that contributed to the formation of planets, determines the motion of bodies in the solar system, and pulls objects to the center of Earth is called Gravity.
isaac Newton's first law of motion, also known as the law of inertia,
Explanation:
Answer:
First blank is gravity second blank is inertia
Explanation:
Which of the following is not a component of soil?
a. organic material
b. minerals
gases
d. none of the above
Please select the best answer from the choices provided
OOOO
The answer is none of the above because organic materials, gasses, and minerals are all component soils.
Hope this helps!!!!!!!
Please give brainliest!!!!
Answer:
I'm not sure but i think its D
Explanation:
3. Could antibiotics fight off a cold virus infection?
Answer:
No.
Explanation:
Antibiotics fight off Bacteria. Anti(B)iotics for (B)acteria
Vaccines are for virus. (V)accine for (V)irus
What are the possible genotypes for blood type B
Answer: IBIB and IBi
Explanation:IBIB is a homozygous dominant and IBi is a heterozygous B blood type.
Which one of mafic or felsic has a higher melting point
Answer:
Felsic minerals (quartz, K feldspar, etc) are light colored while mafic minerals (hornblende, pyroxenes) are normally dark colored. Felsic minerals have the lowest melting points (600 to 750 °C) and mafic minerals have higher melting points (1000 to 1200 °C).
Explanation:
How many nadh molecules are created from the pyruvate molecules that enter the Krebs cycle?
Answer: Three molecules of NADH is produced from every molecule of pyruvate that enters the Krebs cycle.
Explanation: Pyruvate produced from glycolysis is broken down to Acetyl CoA which then enters the Krebs cycle. In Krebs cycle, each molecule of acetyl CoA yields one molecule of GTP (ATP), one molecule of FADH2 and three molecules of NADH. The main purpose of Krebs cycle is to generate NADH needed in the cells. Krebs cycle is a series of eight enzyme catalyzed reactions which oxidizes the Acetyl CoA produced from pyruvate. The NADH molecules are produced by dehydrogenase enzymes:
1). Isocitrate dehydrogenase which converts isocitrate to alpha ketoglutarate.
2). Alpha ketoglutarate dehydrogenase which converts alpha ketoglutarate to succinyl CoA.
3). Malate dehydrogenase which converts malate to oxaloacete.