what is causing global warming a an increase in plate tectonic movement be the reversal of Earth's magnetic poles see if influxes of cosmic radiation or changes in the composition of the atmosphere
Answer:
Changes in the composition of the atmosphere
Explanation:
Although this answer is very vague and generalized, it is the correct answer.
The increase in greenhouse gas emissions in the atmosphere from modern manufacturing and engineering has increase carbon dioxide and methane concentrations in the upper atmosphere. These gasses have a chemical composition that allows the absorption and release of longwave radiation back to the Earth's surface slowly increasing the global average temperature.
What is the ion symbol for sulfur?
Answer:
Sulfide
Explanation:
why are some molecules polar and others non polar
Answer:
Polarity and Non-polarity of molecules depend upon the electronegativity. The theory of electronegativity lies in entire inorganic chemistry. The more electronegative an atom, the more it seeks electrons. If one atom is more electronegative than others, it can form an ionic bond or a polar covalent bond.
Explanation:
What are our lungs made out of?
Answer:
The lungs are a pair of spongy, air-filled organs located on either side of the chest (thorax). The trachea (windpipe) conducts inhaled air into the lungs through its tubular branches, called bronchi. The bronchi then divide into smaller and smaller branches (bronchioles), finally becoming microscopies
Explanation:
A cell containing 10% salt is placed in a beaker of 30% salt. Is the solution is
the beaker hypertonic, hypotonic, or isotonic to the cell? *
Answer:
Hypertonic solution
Explanation:
Because a hypertonic solution occurs when more solutes are outside the cell than on the inside cell
A cell containing 10% salt is placed in a beaker of 30% salt. Is the solution is the beaker hypertonic to the cell.
What is in a hypertonic solution?Any external solution with a high solute content and a low water concentration in comparison to bodily fluids is referred to as a hypertonic solution. The net migration of water in a hypertonic solution will be from the body into the solution.
Hypertonic solutions include 10% salt content. A cell that is placed in a hypertonic environment experiences a net migration of water to the cell's exterior (from the higher water environment inside the cell). In reaction, the cell contracts.
A solution is said to be hypertonic if its salt concentration is higher than the salt concentration in the cells. The osmosis process allows water to pass through permeable cell membranes.
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Use the picture below to help you answer the question.
A car leaves Harrisburg, PA and travels West on the turnpike. How far has the car gone in 4 hours?
Question 21 options:
A.50 km
B.70 km
C.35 km
D.0 Km
Answer: B. 70 km
Explanation:
the answer is in the graph....
the line same point at 4hrs= 70km
-_-
do u go to k12?
Distance is a measure of how much ground has been covered by an object in motion. The object has been covered 70 km of distance in 4 hours. Option B is correct.
What is Distance?It is a measure of how much ground has been covered by an object in motion.Distance is directly proportional to the speed of the object.Displacement:It is a vector quantity that refers to the overall change in position of the object.It is defined as the straight line distance between the initial and final position of the object.Therefore, the object has been covered 70 km of distance in 4 hours.
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what type of star is an example of a massive star?
Answer:
The largest known star is UY Scuti, a hypergiant with a radius somewhere around 1,700 times larger than the sun. Its mass, however, is only 30 times that of our nearest star. If R136a1 swapped places with the sun, it would outshine our closest star as much as the sun currently outshines the moon.
Explanation:
please give me a heart
What is the diffrence between genotype and phenotype.....
I look like a RAT ;-;
Answer:
A genotype refers to the genetic characteristics of an organism. A phenotype refers to the physical characteristics.
Explanation:
why is Geothermal Energy stable or Sustainable?
Answer:
Geothermal energy is a source of renewable energy that will last until the Earth is destroyed by the sun in around 5 billion years. The hot reservoirs within the Earth are naturally replenished, making it both renewable and sustainable.
I HOPE THISE HELPS *
Answer: geothermal is stable
Explanation:
unlike fossil fuels price does not fluctuate and the only huge price tht will be needed only comes in the building of the power plant so it is very much stable
What is a striation and how does it help muscle cells function?
Answer:
Striated muscles are highly organized tissues (Fig. 1) that convert chemical energy to physical work. The primary function of striated muscles is to generate force and contract in order to support respiration, locomotion, and posture (skeletal muscle) and to pump blood throughout the body (cardiac muscle).
Explanation:
Hope this will help youAnswer:
Striated muscle tissue is a muscle tissue that features repeating functional units called sarcomeres. The primary function of striated muscles is to generate force and contract in order to support respiration, locomotion, and posture (skeletal muscle) and to pump blood throughout the body (cardiac muscle).
Explanation:
The myofibrils inside muscle cells contain proteins that contract and expand the muscle. The arrangement of these proteins makes the muscle cells appear striated (the series of vertical lines along the length of the muscle).
What are resistors?
A. magnets that are weak
B. batteries that run radios
C. electrons that explode
D. materials that hold electrons
What does a vaccine do to help an immune system?
Answer:
A vaccine works by training the immune system to recognize and combat pathogens, either viruses or bacteria. To do this, certain molecules from the pathogen must be introduced into the body to trigger an immune response.
Explanation:
Basically it trains the body by giving it a little expirementation withthe sickness. After that, the body will learn how to properly fight or keep the sickness at bay.
Hope it helped!;)
A vaccine injects a little bit of whatever disease you want to protect yourself from. It's just enough that your immune system fights it off and becomes stronger against the disease.
Scientist sometimes use DNA sequences such as these to determine the relatedness of different species. Which of the following is a necessary
on for scientists to use DNA sequences in this way?
Answer: A
Explanation: i took the test
The DNA of all organism contains the same bases. Thus, option A is correct.
What is the different features of DNA and RNA?DNA stands for deoxyribonucleic acid, while RNA stands for ribonucleic acid.
Both are nucleic acid is composed of three components such as nitrogenous base, sugar and phosphate molecule.
DNA has a long polymer of deoxyribose sugar and phosphate backbone having four distinct bases such as adenine, thymine, cytosine and guanine.
RNA has a polymer of a ribose sugar and phosphate backbone with four varying bases: uracil, cytosine, adenine and guanine.
DNA is present in the nucleus and mitochondria, while RNA is found in the cytoplasm, nucleus and in the ribosome.
DNA is stable under alkaline conditions, while RNA is not stable.
DNA self-replicating in nature while RNA does not replicate on its own.
Thus, option A is correct.
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There are always more consumers than producers in an ecosystem A)true B) false
Answer:false
Explanation:there is only enough food for a few top level consumers but there is lots of food for herbivores lower down on the food chain
) :)) What is a drug?
Answer:
good food yum hum
Explanation:
Answer:
it can be a form of medication or the other kind like meth or something
Explanation:
Can you please help me with the worksheet
Which RNA base bonded with cytosine?
Answer:
Guanine
Explanation:
C to G and A to T
In RNA, cytosine (C) forms a base pair with guanine (G).
This pairing is based on complementary base pairing rules, where cytosine always binds with guanine through three hydrogen bonds.
In RNA, as well as in DNA, the base pairs play a crucial role in the structure and function of genetic material.
The pairing between cytosine and guanine, along with adenine (A) pairing with uracil (U) in RNA (or thymine (T) in DNA), creates the double-stranded structure of nucleic acids.
These base pairs provide stability and ensure accurate replication and transcription of genetic information, contributing to the essential functions of RNA and DNA in various biological processes.
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Which of the following comparisons between the major macromolecules is false?
A.
Carbohydrates and lipids both store energy.
B.
Proteins and nucleic acids both store information.
C.
Proteins and carbohydrates both have roles in structural support.
D.
Nucleic acids and amino acids both contain monos
The statement 'proteins and nucleic acids both store information' between the major macromolecules is FALSE (Option B).
Proteins are macromolecules composed of many amino acids linked by peptide bonds.Nucleic acids (either DNA or RNA) are long molecules composed of subunits called nucleotides linked by phosphodiester bonds.DNA is the molecule that stores genetic information to be passed across generations.In conclusion, the statement 'proteins and nucleic acids both store information' between the major macromolecules is FALSE (Option B).
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How does evolution work?
I need a simple answer.
Answer:
evolution refers to cumulative changes that occur in a population over time.
Explanation:
Hope that helps :)
Answer:
Biological evolution refers to the cumulative changes that occur in a population over time. These changes are produced at the genetic level as organisms' genes mutate and/or recombine in different ways during reproduction and are passed on to future generations.
Explanation:
For a particular trait, the allele C is dominant over the allele c. The Punnett square shows the genetic cross of two parents, each with genotype Cc. What percentage of the offspring will show the phenotypes of the dominant allele and the recessive allele
Answer:
There is no punnet square in this question but it can still be answered based on the information provided.
Phenotypes of the dominant allele= 75%
Phenotypes of the recessive allele= 25%
Explanation:
This question involves a single gene that encodes a particular trait. The allele C is dominant over the allele c. This means an heterozygous (Cc) will have the phenotype encoded by allele C. A dominant allele is the allele that masks the phenotypic expression of another allele. The allele being masked is the recessive allele.
According to this question, two parents, each with genotype Cc were crossed. This means that each parent will produce the gametes: C and c. Using these gametes in a punnet square (see attached image), the following genotype of offsprings will be produced:
CC, Cc, Cc and cc.
- Offsprings with genotypes CC, Cc, Cc will show the phenotypes of the dominant allele (C) because allele C is dominant. Hence, the percentage is 3/4 × 100 = 75%.
- Offsprings with genotypes cc will show the phenotypes of the recessive allele (c). Hence, the percentage is 1/4 × 100 = 25%.
Explain how water can be a destructive and constructive force.
Answer:
Water as a constructive force: It is involved in the deposition of sediments. It transports rock fragments, soil, and other debris at a particular area. This process eventually causes them to accumulate and form land features. Water as a destructive force: It is involved in weathering and erosion.
Explanation:
(pls mark brainliest if u can)
:)
Water can be both a destructive and a constructive force.
• The forces, which form or create an existing landform are known as the constructive forces. While the force, which tears or lowers down the surface features of the Earth are known as the destructive forces.
• Water can be considered as the constructive force as it carries sediment down the river and with the river becoming shallow, the deposition of the sediments takes place giving rise to landforms called deltas.
• On the other hand, water can also be considered as a destructive force as it takes part in processes like erosion and weathering. It breaks down and wears away the rocks and land masses.
Thus, water can be both destructive and constructive.
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Can sm1 please help answer this question
Answer:
theory
Explanation:
The gene has a mutation and is changed to the sequence below.
GAC GGA CGA TTA
I
What kind of mutation is this?
Answer:
What kind of mutation - "simple base substitution" or "point mutation".
New mRNA strand - CUG CCU GCU AAU
Does the mutation affect the protein. - yes because one amino acid is different
Explanation:
Here a point mutation occurs in the gene.
What is Point mutation?A point mutation is said to occur in a genome when a single base pair is added, deleted or changed.
Here due to point mutation only a single base pair has been changed ,thus the amino acid sequence has been changed. This is because due to point mutation in the DNA strand the mRNA produced is also changed so the amino acids coded by the mrna are also changed.
A point mutation exists a genetic mutation where a single nucleotide base exists changed, inserted, or deleted from a DNA or RNA series of an organism's genome. Point mutations have a combination of effects on the downstream protein product—consequences that exist moderately predictable established upon the specifics of the mutation.
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answer 5
explanation Question
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There would be no ocean life without _____?
1.marine snow
2.phytoplankton
3.thermocline
4.runoff
Answer:
2. phytoplankton
Explanation:
This is the answer because...phytoplankton is the main food of fish and without fish there could not be food for millions of people! 3 billion people eat seafood so it would be a big deal if seafood was no longer avialiable.
HAVE A SPLENDID DAAAAAY!
I hope you like my explination.
why the pulmonary arteries have light violet blood?
Answer:
The blood in the pulmonary artery is going to the heart to collect oxygen, and therefore has a low content of oxygen. So, the blood in the pulmonary artery is a violet colour because it has low oxygen. The blood in the pulmonary vein is oxygen rich, and so it gives a scarlet color.
What evidence can fossils give us for evolution? Select all that apply.
Can provide evidence of how physical structures changed over time.
Can find common bone structures between living and extinct species.
Can be used as evidence of common ancestry between different species.
Can show how organs changed over time.
-Can provide evidence of how physical structures changed over time.
-Can find common bone structures between living and extinct species.
-Can be used as evidence of common ancestry between different species.
First 3
Do daughter cells have duplicated or unduplicated chromosomes?
Answer:
The answer is: Duplicated
What happens during interphase
Answer:
During interphase, the cell grows and the nuclear DNA is duplicated. Interphase is followed by the mitotic phase. During the mitotic phase, the duplicated chromosomes are segregated and distributed into daughter nuclei. The cytoplasm is usually divided as well, resulting in two daughter cells.
Explanation:
Have great day!!
Answer:
The chromosomes are duplicated
Explanation:
The outer shell of a virus is called its capsid. The capsid is primarily composed of –
A proteins B carbohydrates C fatty acids D mRNA
