What is a force that opposes motion through direct contact?

A. Friction
B. Pull
C. Push

Answers

Answer 1

Answer: a) Friction

Explanation: Friction is a force that opposes motion. When two objects are in contact, friction is acts in a direction opposite to the motion of the object.

Answer 2
The correct answer is A.
Friction is when two objects move along side each other

Related Questions

who is well known for his theory of evolution​

Answers

Answer:

Charles Darwin

The answer is Charles Darwin

Which type of macromolecule has the function of storing and transmitting hereditary information or genetic information?

Answers

Answer:

Nucleic acids are key macromolecules in the continuity of life. They carry the genetic blueprint of a cell and carry instructions for the functioning of the cell.

Explanation:

if am wrong plz forgive me but if I'm right brainly me plz(^∀^●)ノシ

One of the hottest ideas in engineering today is the concept of building an energy capturing system
similar to photosynthesis. The system would use light energy to make artificial food. What two
parts would such a system need, and how must these parts interact if they are to be like
photosynthesis?

Answers

The capturing device and converter are the two parts needed by the energy capturing system in order to make food.

If an energy capturing system wants to perform the same function of photosynthesis, then it must have two parts i.e. converter and capturing device. The capturing device works to capture or absorb light energy and send it to the place where this energy energy is converted into food.

The second part is the converted which convert light energy into food particles. These two parts interact with each other then the desire product will e achieved otherwise not so we can conclude that capturing device and converter are the two parts needed by the energy capturing system in order to make food.

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How much work does an elephant do while moving a 50 N circus wagon 20 m?​

Answers

Answer:

The elephant did 4000 N·m or 4000 J or 4 kJ of work

Explanation:

Describe a freshwater biome.

Define a wetland.
Why do wetlands have high biodiversity?

A developer wants to extend a golf course into a wetland. Outline environmental arguments you could make against this plan.

Answers

Freshwater biomes are large communities of plants and animals centered around waters with less than 1% salt concentration. They are very important to survival on Earth. Types of freshwater biomes include ponds, lakes, streams, rivers, and even some wetlands. Wetlands are not always considered freshwater biomes because they usually have too high of a salt content.

2.

Wetlands are areas where water covers the soil, or is present either at or near the surface of the soil all year or for varying periods of time during the year.

3.

Wetlands have been called “biological super systems” because they produce great volumes of food that support a remarkable level of biodiversity. In terms of number and variety of species supported, they are as rich as rainforests and coral reefs.

sorry last question i don't no

Freshwater biomes are large communities of plants and animals centered around waters with less than 1% salt concentration. They are very important to survival on Earth. Types of freshwater biomes include ponds, lakes, streams, rivers, and even some wetlands. ... Estuaries are the areas between the moving and still waters.

Wetland: land consisting of marshes or swamps; saturated land.

Why do wetland have high biodiversity: Wetlands have been called “biological super systems” because they produce great volumes of food that support a remarkable level of biodiversity. In terms of number and variety of species supported, they are as rich as rainforests and coral reefs.


Making changes to the secondary structure of hair has a different outcome than making changes to its tertiary or quaternary structure. How does this outcome differ

Answers

The outcome differs in the way that the protein folds itself at each level. The changes in the way that it folds lead to:

modifications in the function, shape or in the combination with other proteins.

Protein has different levels of structure. Each of them is related to how the amino acids and other molecules interact with each other. Hair is made of proteins, so if one of the structures is affected, the hair is too.

Let's analyse what happens in each level of structure:

In the case of the primary structure, which is the sequence of amino acids, the modification will give a non-functional protein that will not fold into the following structural level. So, there won't be new hair.For the secondary structure, a modification here can lead to a different folding. In other words, it can change from an α helix to a β pleated sheet or the other way round. This will give a different shape to the hair, like curly or straight.A modification in the tertiary structure modifies the interaction of the R groups in the protein, so the three-dimensional structure that this interaction gives will change, giving a different type of hair.Lastly, if we modify the quaternary structure, the protein won't interact with some proteins, but it may interact with others.

In conclusion, the modification of the secondary structure changes the interaction between the elements of the protein giving hair with different shapes.

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Answer:

Changes in secondary structure are temporary, while changes to tertiary or quartenary structure are permanent.

Que aumento se tiene de una muestra que se observa con un ocular de 10 y un objetivo de 40?
a) 640 b) 1040 c) 400

Answers

Answer:

C

Explanation:

Will chemotherapy work for all cancers?

Answers

Big Brooklyn had a big

Sedimentation accumulation found in bodies of water can be the result of _______. A. Fertilizer runoff b. Pesticides and herbicides c. Erosion from agricultural practices d. All of the above.

Answers

Answer:

All of the above.

Explanation:

All of these can contribute to sediment accumilation in bodies of water.

Sedimentation accumulation found in water bodies can be the result of fertilizer runoff, pesticides, pesticides, and erosion from agricultural practices. So, the correct option is D.

What do you mean by Sedimentation accumulation?

The sedimentation accumulation may be defined as a process of gathering sediments into the rocks, and water bodies, and increasing their actual mass.

Sedimentation accumulation may be carried by the runoff of fertilizers, pesticides, and insecticides. It also occurred due to the process of soil erosion that takes place during agricultural practices.

Therefore, the correct option for this question is D.

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A species that is naturally rare or that has been depleted to dangerous levels is known, according to the Endangered Species Act, as a(n) ________ species.

Answers

Answer:

vulnerable would be the answer

Currently, there are more than 1,300 species in the US that are either endangered or threatened. Species that are in risk of going extinct include those plants and animals that have become so scarce.

What Endangered Species Act, as a vulnerable species?

A species that is endangered is one that is in danger of going extinct. The two main factors that cause a species to become endangered are habitat loss and genetic diversity loss.

Natural occurrences may result in habitat loss. For instance, dinosaurs had their home removed some 65 million years ago.

A species that has been designated as vulnerable by the IUCN is one that is predicted to go extinct unless the conditions that jeopardize its existence and reproduction change.

Therefore, A species that is naturally rare or that has been depleted to dangerous levels is known, according to the Endangered Species Act, as a(n)(vulnerable) species.

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what traits can make a cell special, why are cells specialized…

(Minimum 5 sentences)

Answers

Answer:

They are modified by shape, function, or size. They are made to have certain roles in different parts of our bodies. These cells group together to make/form tissues. Then these tissues make up organs that we obviously need. Different specialized cells include blood cells, nerve cells, and reproductive cells.

Explanation:

if the carrying capacity for the north atlantic cod on the grand banks of newfoundland is 500,000 tons, when do you expect that the rate of population growth would be greatest?

Answers

If the carrying capacity for the North Atlantic cod on the newfound land is 500,000 tons, then we would expect that when there are 250,000 tons of cod on the grand banks, the population growth will be greatest.

The carrying capacity speaks volumes about the maximum amount of a species population that the ecosystem can sustain permanently provided there is the availability of water, food, habitat, and other life essentials.

In terms of population ecology, it is defined as the maximum burden that the environment can tolerate.

In population ecology, populations normally decrease above the carrying capacity while they increase below the carrying capacity. A decline in population size above the carrying capacity can be caused by a variety of factors, such as a lack of sunshine, space, or food availability.

Therefore, we can conclude that If the carrying capacity for the North Atlantic cod on the newfound land is 500,000 tons, the rate of population increase will be maximum and greatest when there are 250,000 tons of cod on the Grand Banks.

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In ________ the gametophyte is more obvious than the sporophyte. A. grasses B. mosses C. conifers D. ferns

Answers

Answer:

Mosses is the correct answer

once the food is swallowed, it passes throught the what

Answers

Answer:

esophagus

Explanation:

Once food is swallowed, it passes through the esophagus into the stomach

the muscle that originates from the superior surface of the pubis around the symphysis is the

Answers

The muscle it originates from is from the waist

The most common starting pathway for the breakdown of sugars is ___________________. a. respiration b. fermentation c. glycolysis d. anabolism

Answers

Answer:

respiration

Explanation:

the tendency of certain alleles to be inherited together is called

Answers

Answer: Genetic Linkage

Explanation:

It's during the meiosis stage of sexual reproduction.

mention any 2effect of drug substance​

Answers

Nausea and Abdominal Pain

why does modification of roots occur? give any two / causes class 8​

Answers

- The roots modify to absorb + transport water & minerals from the soil to different parts of the plant

- They are modified for support, food storage, and respiration

- Roots are modified into other forms to do different functions than their normal functions

- Modification in root can also occur when there is a permanent change in the structure of the root system

(Gathered + reworded information from a few different users who answered the same question elsewhere on Brainly.)

Have a nice day!

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membrane molecules that use the energy of atp to move ions against a concentration gradient are called

Answers

Membrane molecules that use the energy of ATP to move ions against a concentration gradient are called PUMPS. This type of transport is called active transport.

Active transport is a type of transport that requires energy (e.g, ATP) to move molecules and/or ions against a concentration gradient.

In active transport, specific membrane transporter proteins referred to as pumps are used to move ions against an electrochemical gradient across biological membranes.

These protein pumps are fundamental for creating electrochemical gradients that are subsequently used by cells for diverse purposes (e.g., muscle contraction).

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wilkins and franklin studied the structure of dna using

Answers

Rosalind Franklin was a chemist who used a technique called X-ray crystallography to study the structure of DNA.

Answer:

x ray diffraction pattern

Explanation:

4. How are histones related to
nucleosomes?

Answers

Answer:

Nucleosomes are made up of DNA that's wound around histones

Explanation:

Hope this helps.

Answer:

The nucleosome is the fundamental subunit of chromatin. Each nucleosome is composed of a little less than two turns of DNA wrapped around a set of eight proteins called histones, which are known as a histone octamer. Each histone octamer is composed of two copies each of the histone proteins H2A, H2B, H3, and H4.

why is bromophenol blue added to the individual dna samples?

Answers

Answer:

It allows the observer to view how far the DNA samples travel.

Explanation:

It was an answer on a test I just got back.

The input of sewage, fertilizer runoff, and animal waste can cause the formation of Choose one: A. an algal bloom. B. nutrient-poor soil C. fertile farmland. D. an artesian well.

Answers

Answer:

An algal bloom.

Explanation:

The input of sewage, fertilizer runoff, and animal waste can cause the formation of an algal bloom (abundances of cyanobacteria)  because of the excess nutrients (nitrogen or phosphorus). If there are too much nutrients in the water (caused by the sewage, fertilizer runoff, and animal waste) it creates a perfect environment for excess growth, being an algal bloom. Algal blooms are toxic and are known to be harmful to the animals that rely on this source for their survival and humans as well.

What is the medical term for an undescended testicle?

Answers

Answer:

a. Cryptorchidism

Explanation: is correct

Which of the following is a structure of the lower respiratory tract?

Answers

Answer:

c. Bronchioles

Explanation: is correct. post protected

Although we consume different foods, the parts are eventually used in cellular respiration. Does it matter if they originate from crickets or cows or candy bars?

Answers

Given what we know about biological processes, we can confirm that it does not in fact matter where the nutrients come from in terms of cellular respiration.

We consume food to provide the energy we need to function on a daily basis, for this, we may reach for an apple or opt for a candy bar. However, this is irrelevant on a cellular level. Cells do not eat the food the way that we consume them.

They use a process known as cellular respiration to change the food into energy to be used by cells. The most important of this process is the transformation of high-level sugars into simple sugars like glucose and other monosaccharides.

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If a cell being observed has been magnified 200x under the HPO with a magnification of 40x, what is the magnifying power of the eyepiece used?​

Answers

Answer:

5x

Explanation:

I hope this helps you!

1 point
Which of the following would be a good conductor of electricity, heat, and can be drawn into a wire and is malleable?
O Metal
O Nonmetal
O Metalloid
O None of the above
Previous

Answers

Answer:

metal

Explanation:

Answer:

Metal is a good conductor of electricity, heat and drawn into a wirr and is malleable

ventral roots of spinal nerves are purely or primarily ________.

Answers

Answer:

Motor

Explanation:

The Ventral root can also be known as the motor root

Hope this Helps

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A car is traveling with a constant speed when the driver suddenly applies the brakes, causing the car to slow down with a constant acceleration of magnitude 3. 50 m/s2. If the car comes to a stop in a distance of 30. 0 m, what was the car's original speed?. In situations where life is difficult for the majority of the population, would you prefer to consume media that is fantasy/helps you escape from reality, or media that reflects on the current state of the world? Explain your position in a short paragraph (3-5 sentences). plz help!1. (0, y) , (2, 7); m = 1/2y = _____2. (4, 2) , (5, y) m = 4y = _____ A proper stance includes slightly bent knees. A. True B. False What are some objective elements of this painting? What are some of the more subjective elements. Static electricity _____. The coordinates of which point are (3, 6)?point Apoint Bpoint Cpoint D Assuming that Brandt entered into a forward contract to sell 10 million South Korean won on December 1, 2020, as a fair value hedge of a foreign currency receivable, what is the net impact on its net income in 2020 resulting from a fluctuation in the value of the won pls help me pls cuz i need a good grade how people can protect ocean please write in 5 sentences, why do you think its the ultimate sacrifice to serve your country My cramps hurt sm and Im so emotional Does a large person always win each competition? Provide evidence to support your answer. Pleaseee helpppp me!!!!!!!!!!!!! Please I need help asap, 25 points and only answer if you know thanks!What element of the plot sets the scene for the rest of the play?climaxexpositionrising actionresolution Is that the right answe plzzz help me how many grams of C2H5OH would get if you started with 5.0 g Barbara wants to buy muffins. Which is the best deal? O a. 9 muffins for $7.92 O b. 4 muffins for $3.60 O c. 6 muffins for $5.34 O d. 8 muffins for $7.60 N Fill in the blank with a number to make a true statement. *0.25 / ? = -0.25 what is a modern-day monastery? Explain what a typical day is like.