A student applies 55 N of force to a box on four types of surfaces. Each surface has a different value for Ffric-

On which surface is the student not able to move the box?
A. A
B. C
C. D
D. B​

Answer:

i dont know it is correct or not. sorry if it is wrong

Explanation:

hey are completely different! An oxygen molecule consists of two oxygen atoms bonded to each other. They each have one unpaired electron, not used in the bonding. These unpaired electrons make the molecule diamagnetic. Water molecules have one ox...

oxygen and nitrogen molecule consists of two oxygen atoms bonded to each other and same nitrogen atoms are bonded of each other.

Water molecules have one oxygen atom in the center and two hydrogen atoms, one on each side.

It has no taste, odor, or transparency, where the nucleus of the oxygen atom  attracts electrons strongly than the nuclei of the hydrogen atoms.

In water molecule oxygen is more electro negative and electron-greedy than hydrogen, results in the development of  a partial negative charge on the oxygen of the water and a partial positive charge on the hydrogen end.

Water shows strong cohesive property where the attraction of molecules for other molecules of the same kind is referred to as cohesion.

Surface tension is defined as  the tendency of  the surface to resist rupture when they are subjected to stress due to cohesive forces.

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Answer:

Water

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Answer:

The word that would fill this space would be calcium. Calcitonin lowers it, calcitriol increases it, and parathyroid hormones balance it out.

I hope this helped you! Good luck. :)

Answer:

B)an agent that causes a mutation in DNA.

have a nice day

Explanation:

Mutagen is the chemical or biological agent that results in mutation in the genetic or the hereditary material of the living organism. Thus, option B is correct.

Mutagens are substances that can be chemical or biological and causes alterations and modifications in the genetic material of the organisms. They can cause positive and negative damages in the process of the replication and repair mechanism.

UV rays, X rays, ROS, base analogs, alkylating agents, transposons, viruses, etc., are some examples of mutagens that can cause somatic or germline mutations. They can cause silent, missense, nonsense, deletion, addition, or substitution mutations.

Therefore, mutagens cause a mutation by altering the genetic material.

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Answer: Eukaryotic cells have a true nucleus, which means the cell's DNA is surrounded by a membrane. Therefore, the nucleus houses the cell's DNA and directs the synthesis of proteins and ribosomes, the cellular organelles responsible for protein synthesis.

Explanation: Mark as brainllest

Answer:

their functions are different depending upon their location and organism in which they are. for example the cells of stomach wall release mucous, similarly the cell of pancreas release pancreatic juice. and the sieve tube cells help in water transfer from source to sink.

So, all this just depends upon their location and area of labor you can say. Ig i took this last year so i don't remember much

Answer: Option E.

carbonized impressions of many extinct soft-bodied animals

Explanation:

The Burgesss shale biota is significant because it contains the carbonized impressions of many extinct soft-bodied animals because Burgess shake biota indicate best example and famous fossil records that contain soft bodied organisms with carbon impression . This fossil contain soft tissues fauna and floral and not mineralised structures which is not present in any other fossils. priapulid and annelid worms that are found in Burgess shale biota

Answer:

Explanation:

1. Conversion of fibrin to fibrinogin

2. It will cause severe illness or death

3. Polycythemia

4. Eosonophils

5.anti b

Answer: Light is a form of electromagnetic radiation. Other forms of electromagnetic radiation include radio waves, microwaves, infrared radiation, ultraviolet rays, X-rays, and gamma rays. The only difference between them is their wavelength, which is directly related to the amount of energy the waves carry. Scientists classify them by the frequency of their wavelength, going from high to low frequency. When a wave has a lot of energy, it could be a gamma ray or x-ray. If it has low frequency, it has less energy and could be a TV or radio wave.

Explanation:

Answer:

The meaning of atomic model is the smallest quantity of an element that can take part in a chemical reaction.

Explanation:

Answer:

oxidative phosphorylation occurs within the mitochondria

Answer:

There would still be seasons, because the intensity of light would still change throughout the year, due to the earth's tilt.

Explanation:

If, somehow, the number of daylight hours did not change throughout the year, but Earth  was still tilted at 23.5° then-

The tilt of the Earth's axis at 23.5° leads to the different parts of the Earth to gets a high or less amount of direct sunlight at different times of the year.

Thus, the correct answer is -

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Answer:

glucose <disaccharides <starch<protein

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Answer:

I think it's frost wedging because acid rain oxidation and carbonic acid are all examples of chemical weathering I hope this helps you

Answer:

bio- leu

leu- trp- bio

Explanation:

The media growth 'bio- leu ' and 'leu- trp- bio' would offer evidence that genetic transfer had taken place between the two strains of bacteria. These two strains of Escherichia Coli substantiate the genetic recombination through the conjugation of bacterial cells which was the prominent aim of experiment displayed by Lederberg and Tatum's genetic analysis. This mapping of chromosome E. coli assisted in recieving the ph.

Answer:

The addition of a water molecule breaks a covalent bond between sugar monomers

Explanation:

The digestion of carbohydrates by enzymes is an example of a hydrolysis reaction.

Carbohydrates are chains of monosaccharides. Hydrolysis involves the addition of a water molecule that cleaves the covalent bond between the molecules of sugar.

The reverse reaction is a condensation reaction, the joining of sugar monomers to create a carbohydrate releases a molecule of water.

Answer:

Stream , Tributary, River, and Lake

Explanation:

Stream tributary River and Lake is the path for gravity causes water to move.

Evaporation, condensation, and precipitation are typically taught as three separate but interconnected stages of the water cycle. Although this is a useful model, the actual situation is far more nuanced.

Water moves through ecosystems on Earth in a variety of ways that are incredibly complicated and still not fully understood.

For better weather, climate, water resource, and ecosystem health forecasting, NOAA is working to increase understanding of the water cycle at all sizes, from the global to the local.

Evaporation, condensation, and precipitation are frequently taught as three basic, circular processes that make up the water cycle. This is a good paradigm, but in practice things are much more nuanced.

Therefore, Stream tributary River and Lake is the path for gravity causes water to move.

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Answer:

That the oxygen atom attracts electrons a little more strongly than hydrogen does. So even though the electrons from each atom are attracted by both the oxygen and the hydrogen, the electrons are a bit more attracted to the oxygen.

please elaborate what u mean

Answer: behavioral isolation

Explanation:

Answer: They are all accessory structures.

Reason: They are not apart of the digestive tract.

The liver doesn't release digestive enzymes, it does make some though.

Mechanical Digestion breaking down the food into little pieces via the teeth and saliva .

Carbohydrates are digested not in any of these, but rather in the small intestine.

Answer:

b

Explanation:

They are all accessory structures.

If someone is riding on a train, the object will appear to be stationary from the train seat, such as a poster on the train, which is present in option B, and this example explains the nature of the motion.

When traveling by train, some substances appear to be moving along with the train, while others appear to be stationary. This is due to the relative nature of motion, and due to this person inside the train, objects outside the train are moving because the train is in motion, whereas objects inside the train are stationary.

Hence, if someone is riding on a train, the object will appear to be stationary from the train seat, such as a poster on the train, which is present in option B, and this example explains the nature of the motion.

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Answer: Song,Tune

Explanation: Music is a melody

Chime, tune, song strain, warble

Answer:

the is no pictures or equation I'm sorry can you try and upload it again I would love to help

Explanation:

upload

RNA and DNA are two nucleic acids that differ in nitrogen bases. ACGUGA is the RNA base pair that will pair with TGCACT, of DNA. Thus, option D is correct.

The complementary base pairing has been defined as the pairing of the nucleotides with each other to form the RNA or DNA structures. The base pairs with each other through hydrogen bonding where the reaction occurs between the purines and pyrimidines.

The RNA and DNA structure differs as RNA is made of ribonucleic acid with four nitrogen bases, A, U, G, and C, whereas DNA is made of deoxyribonucleic acid with bases, A, T, G, and C. Both differ in sugar and one nitrogenous base.

According to Chargaff's base pairing rule the purines (adenine and guanine) pair with pyrimidines (cytosine, thymine, and uracil). A forms a double bond with T in DNA and U in RNA, and G forms triple bonds with C.

The given DNA sequence is: TGCACT

The RNA bases for the sequence will be: ACGUGA

Therefore, option D. ACGUGA is the complementary base pair.

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Answer: D

Explanation:

Carbohydrates and nucleic acids are the two main classes of biomolecules which are involved directly in the process of digestion of maltose through maltase enzyme. Thus, the correct option is D.

Maltase is a an enzyme which belongs to the alpha-glucosidase enzyme family. These are found in the small intestine's brush bordered cells. The hydrolysis of the disaccharide maltose into two simple sugars such as glucose is catalyzed through the enzyme maltase.

Maltose is a disaccharide which is produced by the enzymatic hydrolysis of starch, which is a homopolysaccharide and this is catalyzed by the enzyme amylase. Maltose sugar is further hydrolyzed by the enzyme maltase to produce two molecules of d-glucose.

Therefore, the correct option is D.

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Answer:

Roots, stem, leaves, flower

Explanation:

Answer:

The soil in the alpine biome is rocky and nutrient poor.  Plants that live in the alpine biome must be suited to the nutrient poor soil.

Explanation:

The plants living in the alpine biome are adapted to survive on limited nutrients as the conditions in the alpine biome is harsh and not favorable. Hence, the plants have to adapt the mountain climate.

An adaptation is any physical or behavioral feature of an organism that helps them to survive better in their environment. In other words, an adaptation is something that helps them in finding food, water, mates, and shelter.

The alpine climate is the typical climate for elevations above the tree line, where the trees fail to grow due to cold conditions. The climate of alpine biomes is also referred to as the mountain climate or highland climate.

Plants which are living in alpine biomes are typically low growing due to the extreme environmental conditions. There are only about 200 species of alpine biome plants which have adapted to life in cold temperatures and sparse rainfall.

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Answer:

a

Explanation:

i think its A because the rest font make sense

Answer: A

Explanation: the application of scientific knowledge for practical purposes, especially in industry