Which of the following statements is true? Friction works in the direction opposite of motion. Lubrication can be used to increase friction. Only large masses exert gravitational force. Air resistance is greatest for objects with small surface areas.

Answers

Answer 1
probably A :) hope this helps
Answer 2
A. Friction works in the direction opposite of motion.

I just did this lesson :)

Related Questions

How many crickets will a lizard need to consume if: There are 150 dietary calories in 100 grams of cricket. Crickets weigh 1.0 grams each. It takes 0.5 dietary calories for the lizard to do one pushup. The lizard spends 60 minutes a day doing pushups The lizard does these pushups every day for 30 days during the breeding season The lizard does push-ups at a rate of 10 push ups/ 30 seconds.
4500
6750
9000
12000

Answers

The answer to your question is 12000

According to the dichotomous key, the organism pictured would be a member of the kingdom

Answers

we're are the pictures.

Answer:

It's a Gibbon or orangutan

Explanation:

I just assume because I  answered a question like this if it's wrong I'm sorry...

The stage in which an ecosystem rapidly gains biomass through the introduction of plants with woody stems is called?

Answers

The answer is "aggradation."

The answer is Aggregation.

During plant succession new community gets established at an area which had been uninhabited. The community which gets established at the site is called climax community. The aggregation is the stage during which there is increase in population of the species which has become established in the area. The shrubs replace the small herbs. This adds up biomass by introduction of more plants with woody stem. This also proves as a source of food for future inhabitants.


Which component of Earth's atmosphere is responsible for absorbing ultraviolet radiation? A. OZone B. Nitrogen C. Water vapor D. Oxygen

Answers

a) the ozone layer, it is the one that takes the uv light from the sun
A)Ozone
The ozone layer contains a high concentration of ozone. Ozone absorbs most of the ultraviolet radiation reaching the Earth. 

A eukaryotic cell that is involved in synthesizing large amounts of protein might be expected to have

Answers

A eukaryotic cell that is involved in synthesizing large amounts of protein might be expected to have a lot of ribosomes. Ribosomes are dot like structure that are located around the rough endoplasmic reticulum. They are where proteins are made. There are also a few that are located in the cytoplasm. These ribosomes are the ones that give the endoplasmic reticulum a rough edge.

A eukaryotic cell that synthesizes large amounts of protein is expected to have a significant number of ribosomes and a well-developed endoplasmic reticulum and Golgi apparatus, as well as numerous mitochondria for energy.

A eukaryotic cell that is involved in synthesizing large amounts of protein might be expected to have numerous ribosomes, a well-developed endoplasmic reticulum (ER), particularly the rough ER where ribosomes are attached for protein synthesis, and a sizeable Golgi apparatus for modifying, sorting, and packaging the proteins.

Proteins are critical to a cell's functions, and ribosomes are the macromolecular machines that synthesize proteins. The rough ER is involved in the production of proteins destined for insertion into the cell membrane, secretion, or use in lysosomes. The smooth ER is associated with lipid synthesis and detoxification processes. After synthesis, proteins are transferred to the Golgi apparatus, which further modifies them and directs them to their final destinations.

In addition to ER and Golgi, you would expect such a cell to have significant numbers of mitochondria for providing the necessary energy (ATP) required for the protein synthesis process.

Vertebrates that are warm blooded, give live birth to live young, and nourish their young with milk would be classified as

Answers

Vertebrates that are warm blooded, give live birth to live young, and nourish their young with milk would be classified as mammals. Mammals are the category of everything described above.

Your answer is: Mammals 

Have an amazing day mate!

Your answer is: Mammals

The recent acts of activists intent on destruction of research plots included plants altered by molecular as well as classical genetic techniques. is it possible to distinguish between plants altered by classical genetics and those altered by modern techniques? if it is possible how is it done?

Answers

Some GMO plants have been engineered to be have characteristics not related to appearance, such as drought resistance for example. Therefore, one would not be able to detect between these GMOs and non-GMOs except by examining their DNA. However, other GMOs have been engineered to have physical characteristics that are appealing to consumers, such as exceptionally colourful or large fruit. These GMOs would be easier to distinguish from non GMOs.
Final answer:

Yes, it is possible to distinguish between plants altered by classical genetics and those altered by modern techniques by analyzing specific markers and using DNA analysis.

Explanation:

Yes, it is possible to distinguish between plants altered by classical genetics and those altered by modern techniques. One way to do this is by analyzing the presence of specific markers that are associated with each method. For example, classical genetic techniques often result in random insertions or deletions in the genome, which can be identified through DNA sequencing. On the other hand, modern techniques such as genetic engineering involve the precise insertion of specific genes into the plant's genome, which can also be detected through DNA analysis. Scientists can use various molecular biology techniques to analyze the DNA of plants and determine whether they have been altered using classical or modern methods.

Learn more about Genetic modification of plants here:

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Which term describes materials that have large and connected pores, such as sand and gravel

Answers

The answer is Permeable.\
The answer to your question is Permeable

The third body, the apollo spacecraft, is assumed to have

Answers

It is assumed to have a negligible mass compare with the two bodies. Its position is an undetermined function of time. The spacecraft position requires system of differential equations that was derived from the Newton's laws of motion and the inverse square law of gravitation. This is a three body system where a small mass orbits the two other bodies with much larger masses.

Why does a desert have a dramatic change in temperature during the day and at night? Because

Answers

c. significally lower

i had the same question its the RIGHT ONE

A liver biopsy of a four-year-old boy indicated that the fructose-1,6-bisphosphatase enzyme activity was 20% of normal. the patient's blood glucose levels were normal at the beginning of a fast but then decreased suddenly. pyruvate and alanine concentrations were also elevated. explain the reason for this symptom.

Answers

Fructose-1,6-bisphosphatase is a key enzyme in glycolysis and gluconeogenesis; but in this case, the function of this enzyme in gluconeogenesis is more significant. Gluconeogenesis is reversal of glycolysis by bypassing irreversible reactions of glycolysis and making use of reversible reactions of glycolysis. In turn, compounds such as pyruvate, alanine, and glycerol will eventually be converted back to glucose. In the liver, this glucose can be released in the bloodstream in response to hypoglycemic states (i.e. fasting states). 

In the deficiency of fructose-1,6-bisphosphatase, gluconeogenesis will be impaired. Therefore there will be an abnormal decrease in blood glucose levels during fasting. Substrates for gluconeogenesis (i.e. pyruvate and alanine) will then accumulate in the body causing its levels to increase.
Final answer:

The low fructose-1,6-bisphosphatase enzyme activity in the liver biopsy of the four-year-old boy leads to a decrease in glucose production during fasting. This deficiency impairs the conversion of fructose-1,6-bisphosphate to fructose-6-phosphate, causing a sudden decrease in blood glucose levels. The elevated pyruvate and alanine concentrations indicate the impairment of glycolysis.

Explanation:

The fructose-1,6-bisphosphatase enzyme plays a crucial role in the breakdown of glucose during fasting. It converts fructose-1,6-bisphosphate into fructose-6-phosphate, an important step in glycolysis. In this case, the liver biopsy showed that the enzyme activity was only 20% of normal, leading to a decrease in glucose production.

Normally, during fasting, glucose is released from glycogen stores in the liver to maintain blood glucose levels. However, with reduced fructose-1,6-bisphosphatase activity, the body's ability to produce glucose is impaired, causing a sudden decrease in blood glucose levels.

This deficiency also leads to the accumulation of pyruvate and alanine because the conversion of fructose-1,6-bisphosphate to fructose-6-phosphate is compromised. These elevated concentrations further indicate the impairment of glycolysis.

Learn more about fructose-1,6-bisphosphatase enzyme activity and its effects on glucose metabolism during fasting here:

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In mantle convection currents, hotter rock moves _______, while cooler rock moves _______.

Answers

Hey there!

In mantle convection currents, hotter rock moves upward, while cooler rock moves downward. You can think of it as a hot rock moves up, while a cold rock moves down.

Hope this helps you.
Have a great day!

Answer:In mantle convection currents, hotter rocks move ___upward___, while cooler rocks move ____downward____

Explanation:

Frogs lay thousands of eggs because many eggs die. This is a behavior is an example of

Answers

Overproduction. I'm typing random stuff cause brainly makes me xD
Overproduction it must act on structure trail

Which characteristic sets hominins apart from other primates?

Answers

Bipedalism is the characteristic that hominins have and sets them apart from other primates. Bipedalism refers to locomoting. It is walking primarily upright on two feet, movement on two feet.
Walking upright distinguishes humans from other primates. Walking, running, or hopping are types of bipedal movement.

The site where the earliest known monkeylike haplorrhine fossils were found is called the __________ depression.

Answers

The answer is the Fayum Depression in Egypt. This region has yielded fossils for at least 17 genera of fossil primates over the last 90 years. These fossils are between 28 to 37 million years in age, and the record indicates that there was a diverse range of anthropoid primates that lived in this area during this time.

A J-shaped curve is called a(n) _______.

Answers

Answer:

Exponential curve

Explanation:

The growth of population is represented with the help of population growth curves.An exponential growth curve is a J- shaped curve that shows the growth of the population in areas where there are unlimited resources present. In the presence of unlimited resources, there is a very fast growth of population however this growth decreases as the resources become limited.The pattern formed from such an increasing population size in the presence of unlimited resources results in a J-shaped exponential growth curve.Example- bacterial growth 

What is the first step for managing innovation during discontinuous change?

Answers

The design iteration.

The first step in managing innovation during discontinuous change is to:  1. Recognize the signals of change and emerging trends. 2. Analyze and interpret these signals to understand their implications. 3. Develop strategies to adapt to or leverage the discontinuous change through innovation.

The first step for managing innovation during discontinuous change is to recognize the signals of change and understand the emerging trends.

 To effectively manage innovation in the face of discontinuous change, it is crucial to be vigilant and sensitive to early indicators of shifts in the business environment. These signals could come from various sources, such as changes in customer preferences, technological advancements, new regulatory requirements, or emerging competitive threats. By recognizing these signals early on, organizations can begin to assess the potential impact of these changes on their current operations and strategic direction.

Once signals are recognized, the next step is to analyze and interpret these trends to gain a deeper understanding of their implications. This involves gathering data, conducting market research, and engaging in strategic conversations with stakeholders, including customers, suppliers, and industry experts. The goal is to develop a comprehensive view of the changing landscape and to identify both the challenges and opportunities that it presents.

After a thorough analysis, organizations can then start to envision potential future scenarios and develop strategies to adapt to or capitalize on the discontinuous change. This may involve pivoting business models, investing in new technologies, re-skilling workforces, or exploring new markets. Innovation management in this context is not just about reacting to change but proactively shaping the organization's future by leveraging innovation to stay ahead of the curve.

When energy is used, ATP molecules convert to ADP molecules. This process is called _____. dephosphorylation phosphorylation oxidation diffusion

Answers

Hey there!

 This process is called phosphorylation. When energy is used, ATP molecules convert to ADP molecules.

Your answer is the 2nd option.

Hope this helps you.
Have a great day!

Answer:

B. Phosphorylation

Hope this helps!

A medical researcher is studying the spread of a virus in a population of 1000 laboratory mice. during any week, there is a 70% probability that an infected mouse will overcome the virus, and during the same week there is a 40% probability that a noninfected mouse will become infected. two hundred mice are currently infected with the virus. how many will be infected next week and in 3 weeks? (round your answers to the nearest whole number.)

Answers

A medical researcher is studying the spread of a virus in a population of 1000 laboratory mice. during any week, there is a 70% probability that an infected mouse will overcome the virus, and during the same week there is a 40% probability that a noninfected mouse will become infected. two hundred mice are currently infected with the virus. how many will be infected next week and in 3 weeks? (round your answers to the nearest whole number.)

At the start of the experiment, 200 mice are infected. The population is 1000 mice. At the end of week one, 30% of the infected mice will still be infected i.e. 60 mice. 40% of the original 800 uninfected mice will now also be infected, i.e., 240 mice. That leaves 300 infected mice and 700 uninfected mice.

Using the same calculations, by week two the infected mice are 90 + 280 = 370

By week three the infected mice are 111 + 252 = 363

Calculate the number of mice infected with the virus next week and in 3 weeks based on given probabilities and the initial infected count.

The number of infected mice next week:

Initially infected mice = 200

Number of mice overcoming the virus = 0.7 * 200 = 140

Number of mice getting infected = 0.4 * (1000 - 200) = 320

Number of infected mice next week = 140 + 320 = 460

The number of infected mice in 3 weeks:

Number of mice next week = 460

Number of mice overcoming the virus = 0.7 * 460 = 322

Number of mice getting infected = 0.4 * (1000 - 460) = 216

Number of infected mice in 3 weeks = 322 + 216 = 538

Even if you live in the middle of North America, the quality of your watershed can affect the quality of the ocean. How can this be?

Evaporation carries materials from your watershed to the ocean.
Materials in your watershed are eventually transported to an ocean.
The amount of water in your watershed will affect ocean evaporation.
Materials in your watershed are not transported to an ocean.

Answers

The answer is B) Materials in your watershed are eventually transported to an ocean.

The answer is B) Materials in your watershed are eventually transported to an ocean.


The _______ system is the primary system that prevents the risk of various infections.

Answers

Hi,

The answer you're looking for is immune system.

Hope this helps!

When a plant is using transpiration to cool off during the day, its stomates are _______ and its water potential is _______ that of the soil. at night, the plant's water potential will be _______ that of the soil (assuming that the soil is receiving sufficient moisture)?

Answers

When a plant is using transpiration to cool off during the day, its stomates are __*open*__ and its water potential is __*higher*__ that of the soil. At night, the plant's water potential will be __*lower*__ that of the soil.
*__* are the answers

Hope it helped!

Ocean currents are caused by all of the following except:

underwater landslides
surface winds
tidal fluctuations
density contrasts in seawater

Answers

The answer is A: 'underwater landslides '. Underwater landslides would cause a wave, rather than a current. Ocean waves are caused by energy passing through water. An ocean current on the other hand is a mass of water moving in a definite direction through another mass of water. This movement is driven by forces that could be derived from surface winds, tidal fluctuations and seawater density contrasts. 

A young man presents reporting diarrhea, fecal urgency, and weight loss. his stool is light-coloured and malodorous, and it tends to float and be difficult to flush. he has also noted tender, red bumps on his shins and reports pain and stiffness in his elbows and knees. sigmoidoscopy reveals discontinuous, granulomatous lesions; no blood is detected in his stool. which diagnosis would his care team first suspect?

Answers

Based on the salient features and the laboratories of this patient, this is a case of Crohn's disease. Crohn's disease is type of chronic inflammatory bowel disease or IBD along with ulcerative colitis. Crohn's disease usually presents with diarrhea, abdominal pain, and significant weight loss. Pathologically, it is characterized by "skip-lesions" or discontinuous granulomatous that occurs on all layers of the bowel (transmural); with the involvement of the whole gastrointestinal tract. Patients with Crohn's disease have a significant risk in developing colorectal cancer.

Which part of a tree always grows down because of gravity?

Answers

The roots always grow down into the ground.
the roots of the tree

What is the function of the Compact Bone?

Answers

Inside each osteon is a space called a central canal, which houses blood vessels and nerves within the bone. These vessels supply blood to the interior spongy bone as well as the living cells housed within the compact bone. ... Osteocytes are cells that deposit bone.

Final answer:

Compact bone is the dense external layer of bones that provides protection and strength. It consists of units called osteons, which are aligned parallel to the long axis of the bone. The osteons contain a mineral matrix, living osteocytes, and canaliculi that transport blood.

Explanation:

Compact bone, also known as cortical bone, is the hard external layer of bones and surrounds the bone marrow. Its main function is to provide protection and strength to bones. Compact bone tissue is made up of units called osteons, which are cylindrical structures that contain a mineral matrix and living osteocytes connected by canaliculi. These canaliculi transport blood and the osteons are aligned parallel to the long axis of the bone. Each osteon consists of layers of compact matrix called lamellae that surround a central canal called the Haversian canal, which contains the bone's blood vessels and nerve fibers. Compact bone tissue is located in areas of bone where stresses are applied in only a few directions, helping the bone resist bending or fracturing.

Andra is having a hard time remembering all the parts of a microscope. To help her label a microscope diagram on her test, she could use: A. keywording B. repetition C. categorization D. visualization

Answers

the answer is D. visualization 

Answer:

D. visualization

Explanation:

A visualization techniques is used to remember things through image perception. It helps to realize the things on ground and correlate with its guided imagery. Through the minds’s eye an individual focuses on actual images. Here,  if  instead of teaching  microscope through diagrams in book, Andra is shown the real microscope and all its parts better explained, then she would be able to remember the tings for a very long period of time.

Several fish species became extinct millions of years ago. The graphs provided below show the distribution of fossils of these fishes as they occur in several undisturbed layers of sedimentary rock observable in a cliff face. Respond to ALL 4 PARTS below: Explain why the distribution of the fossils in figure 1 support the hypothesis that the extinction of these species was a result of a sudden environmental change. Describe an environmental change that could have produced this kind of fossil distribution. Explain why the distribution of the fossils in figure 2 supports the hypothesis that the extinction of these species was a result of a gradual environmental change. Describe an environmental change that could produce this kind of fossil distribution.

Answers

1. Explain why the distribution of fossils in Figure 1 supports the hypothesis that the extinction of these species was the result of a sudden environmental change.
This hypothesis can be supported because all the fossils accumulate almost at the same age of the rock layer. That is, all the fossils died almost at the same time.

2. Describe an environmental change that could have produced this type of fossil distribution.
Good examples of sudden environmental changes are volcanoes. When a rash occurs, the whole environment suddenly changes for different reasons such as ash or lava, and all living things can die immediately or in a few years by the change in the ecosystem.

3. Explain why the distribution of fossils in Figure 2 supports the hypothesis that the extinction of these species was the result of a gradual environmental change.
This is because the fossils accumulate at different ages of the rock layer, that means, the species dying over time. The gradual descent of the fossils is observed.

4. Describe an environmental change that could produce this type of fossil distribution.
For example, if a climate change occurs - the temperature increases or decreases - it can cause the trees or plants to die and all the animals in the ecosystem also die when they have no food. But this process is sequential, so the change can take years, centuries or even millions of years.

I hope this can help you.

Assume that a drop in parasite abundance reflects an effective immune response by the host. explain the pattern you described in question 2.

Answers

This question is unfortunately incomplete. This question relates to the advantage derived by some parasites by maintaining a low level of infection in the host. These parasites achieve this by a gene for its surface glycoproteins that is duplicated thousands of times, with each gene coding for a slightly different glycoprotein structure. By constantly shifting between glycoproteins of different structures, the parasite can fool the host into temporarily reversing the immune response. The question includes a table showing the change in parasite blood concentration with time, with the table showing distinct waves of increases in parasite concentration followed by decreases. Using the hypothesis about changing glycoprotein structure, it makes sense that the host begins an immune response, leading to a decrease in parasite numbers, at which point the parasite changes the structure of its surface glycoproteins, thereby allowing the parasite to overcome the immune response, and the concentrations of parasites increase once again. 

A nurse is preparing a 24-hour-old baby boy for circumcision. the hospital policy guidelines for circumcision support pain medication at least 1 hour prior to the start of the procedure. the provider did not order the pain medication. the provider arrives, and the nurse refuses to bring the baby for the circumcision stating that the pain medication was not ordered. which is the rationale for refusing to bring the baby for the procedure?

Answers

The correct answer is "a nurse has a right to refuse orders that they believe will be harmful to the client".

In this case, there was no standing order for administering pain medications. Since it was not ordered, pain medication was not given to the baby. Even if the physician insists of circumcising the baby, the nurse can refuse as (1) this breaks the hospital policy, and (2) this can be harmful to the baby.

The nurse refused to bring the baby for the circumcision due to the lack of ordered pain medication, which the hospital policy states should be administered an hour beforehand to manage the newborn's high pain sensitivity.

The nurse's rationale for refusing to bring the baby for the circumcision procedure is based on the hospital's policy guidelines, which support administering pain medication at least 1 hour prior to the procedure to manage the infant's sensitivity to pain.

Immediately after birth, newborns are highly sensitive to touch and temperature, and they react strongly to pain with increased blood pressure, heart rate, and stress hormones. Without proper pain management, such as local anesthetics, the infant could experience significant distress and potential long-term effects.
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The name of the commonly used hardness scale is: specific gravity organic Mohs inorganic political cartoon from 1986, president reagan (U.S.) and premier mikhail gorbachev (U.S.S.R.) are engaged in an intense arm wrestling match. various symbols are used to explain what is happening. discuss three symbols AND what message the artist was trying to convey by including three symbols in the cartoon. a rigid tank of air is cooled (temperature decreased) the volume has to remain constant because it is a rigid tank the air pressure in the rigid tank ___A. IncreasesB. DecreasesC. Stays the same20 points please help right away Which of the following are heterogeneous mixtures (not homogeneous mixtures)?Check all that apply. A.Blood B.A smoothie C.Milk that is sold at the store D.A cake mix The main purpose of this visual is to ?A. Persuade the reader to buy great gruelB. Inform the reader why great gruel is on sale C. Describe the Presidents' Day sale on cereal D. Entertain the reader with a pretty picture In fruit flies, the gene for red eyes (R) is dominant and the gene for sepia eyes (r) is recessive. If two red-eyed heterozygous flies (Rr) mate together, what are the possible genotypes of their offspring? (Hint: You many want to complete a Punnett square.) RR and Rr Rr only RR and rr RR, Rr, and rr Who articulated the doctrine of nullification before the civil war? pete spends 3/5 of his monthy pay on rent, 1/8 on bills and then spends half of what is left on food. if his monthly pay is $820, how much does he have left at the end of the month? How did France and Britain respond to fascist aggression during the 1930s? Electromagnetic waves can carry more data at higher frequencies. Why would a scientist opt to transmit data at a lower frequency instead?What are the limitations of sending information using electromagnetic waves?What are the differences between analog and digital signals?What are the advantages of using digital signals over analog signals?Using reliable internet sources, identify three ways we use analog and digital signals in our everyday lives. Tapeworms attach themselves inside the intestines of a pig. the worms then eat the pig's partially digested food. the pig is deprived of nutrients. which type of relationship does this represent? a. commensalism b. mutualism c. competition d. parasitism Triangle ABC has vertices A(1,4), B(2,4) , and C(1,1) . A dilation with a scale factor of 0.25 and center at the origin is applied to the triangle.What are the coordinates of B' in the dilated image?Enter your answer in the boxes.B' has a coordinate pair of (,) Whats the difference between an inscribed and circumscribed circle A photographer enlarges a photo by using a scale of 5. The length of the original photo is 7 in. What is the length of the enlarged photo? Enter your answer in the box. Which layer of the sun is responsible for producing the light shown in the picture above?(A) Radiative zone (B)Convective zone (C)Photosphere (D)Chromosphere Han asks you, "do people become happier with age?" according to the text, the most reasonable answer is What is the effect of Minos accusing Aegeus of killing his son What are the parts of speech Problem Safety standards require a pool to add 3 chlorine tablets to every 2,000 gallons of water. Today, the lifeguards at Park Pool added 8 chlorine tablets to their pool's 10,000 gallons of water. How does Park Pool's chlorine compare to the safety standards? A medical testing laboratory saves money by combining blood samples for tests, so that only one test is conducted for several people. the combined sample tests positive if at least one person is infected. if the combined sample tests positive, then individual blood tests are performed. in a test for gonorrhea, blood samples from 30 randomly selected people are combined. find the probability that the combined sample tests positive with at least one of the 30 people infected. based on data from the centers for disease control, the probability of a randomly selected person having gonorrhea is 0.00114. round your answer to four decimal places.