helpppppp plsssssssss

Helpppppp Plsssssssss

Answers

Answer 1

Answer:

the net force would be 45n

Explanation:

20n+25n=45


Related Questions

Which of the following would be a good example of an index fossil? *

A plant species that lived only in the Amazon Rainforest for 30 million years
A species of lizard found in the Sonoran Desert that lived for 3 million years
A species of dinosaur that lived across all of Pangaea for 50 million years
A species of fish that lived at the bottom of the Pacific Ocean for 150 million years

Answers

Answer:

The last one is correct

Explanation:

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PLEASE HELP!!!
In the space below, discuss some of the advantages and disadvantages of asexual and sexual reproduction. Compare and contrast individuals that are sexually and asexually reproduced. Use complete, meaningful sentences to explain the information you give as your answer.

Answers

Answer:

The advantages of sexual reproduction:

produces genetic variation in the offspring

the species can adapt to new environments due to variation, which gives them a survival advantage

a disease is less likely to affect all the individuals in a population

In asexual reproduction there is only one parent. The offspring are clones of the parent and each other.

The advantages of asexual reproduction include:

the population can increase rapidly when the conditions are favourable

only one parent is needed

it is more time and energy efficient as you don't need a mate

it is faster than sexual reproduction

The disadvantages of sexual reproduction:

time and energy are needed to find a mate

it is not possible for an isolated individual to reproduce

The disadvantages of asexual reproduction include:

it does not lead to genetic variation in a population

the species may only be suited to one habitat

disease may affect all the individuals in a population

Explanation:

Okay so basically then that’s how you yeah

Definition: This is is a medical procedure used in prenatal diagnosis of chromosomal abnormalities in
which a small amount of amniotic fluid is extracted amniotic sac surrounding a developing fetus and the
fetal DNA is examined.

Answers

Answer:

Amniocentesis

Explanation:

It involves inserting a long needle to extract fetal cells from the fetus's surrounding fluid for these diagnostic purposes. It is a risky procedure that has since been widely replaced by cell-free DNA testing.

PLS ANSWER How is sunlight important in your life? Describe some of the positive and negative effects of sunlight.

Answers

Answer:

Sunlight is important in my life because you need it if you have a plant and you want to take care of the plant.Postive effects of sunlight is Sun water and needing health

Answer:

I know one reason is that plants need sunlight, and without plants we would all die. This is because plants need sun, and if we didn't have plants, we would be robbed of that resource, and then animals who eat the plants would die, so meat would be taken from us as well and we would all DIE.

Question 3 (2 points)
A student observes a cell using an electron microscope. She sees a nucleus, a cell wall, DNA, and cytoplasm. She classifies the cell as
prokaryotic. What is one problem with this classification?
Prokaryotic cells never have DNA
Prokaryotic cells do not have a nucleus
Prokaryotic cells never have a cell wall
Prokaryotic cells do not have cytoplasm,
с

Answers

Answer:

a

Explanation:

a

when the carbon dioxide increases, the_______ increases ​

Answers

Answer: global warming increase

Which of these contains chlorophyll and is where photosynthesis takes place. Found in plant cells only.

Answers

Answer:chloroplasts

Explanation:That would be the chloroplasts and it is also only found in plants

would transition metals be in Metal, Nonmetal, or Metalloid?

Answers

Answer:

They would be in metals :)

What do you call a change in the environment that causes a response or reaction?

Question 2 options:

photosynthesis


style


stigma


stimulus

Answers

Answer:

stimulus

Explanation:

Si se cruza un perro de pelo duro con una perra de pelo suave ¿Cuál será el resultado de la F1 y f2, siendo el pelo duro dominante sobre el suave? Por favor ayuden me

Answers

Explanation:

un marrano xx abababajabababdbdbfbx xjxbxbxbzxbxjxjsjss

13.
Which is the most accurate statement?

Answers

There is no photo :/

Choose one of the statements below that is true

Answers

The 3 one hope this helps xx

Write an essay about the dangers of Child Labour. ( 250 - 300 words).

Answers

Explanation:

Child labour is the working of children of ages under 18 years old for number of hours that contrast their body growth and affects their health badly. This research is studying the affects of child labour on development of countries and trying to prove that the child labour is cause of delaying of some countries due to its effects on education. To prove that an interviews with labour children’s and their families have been made. More over a lot of statistics have been gathered by me of child labour in several countries from uniceff and international labour organization in addition to world health organization .the results which have been indicated is that most of the child labour found around the world is in the developing countries because children leave schools to work so in the future they become untrained adult can work.

i-Introduction

Child labour is the working of young children under the age of 18 years old for large number of hours and in unsuitable jobs .It was noted that The Child labour it is the work of children in un suitable ages for unsuitable work hours or under unhealthy conditions and under certain circumstances that contrast with their body growth and their education and also their ability for creations (February 2, 1992, The Child Labour Situation) . also it was conducted that child labour is breaking of human rights which obstacle there psychological life and their physical activities (international labour organization ). Further more the child labour is mainly found in the developing countries and in Africa and Asia . some statistics The high percentage of child labor occurs mainly in mali with percentage of 54.5 Burkina Fasowith 51 percent, Niger and Uganda with 45 percent and Kenya with 4L3 percent, the report said.Bangladesh had 30.1 percent, Nigeria 25.8 Haiti 25, Turkey 24, Ivory Coast 20.5, Pakistan 17.7 percent, Brazil 16.1 , India 14.4. China U.6, and Egypt 11.2 percent. (INTERNATIONAL JOURNAL OF HUMANITIES AND PEACE. 1997). After all of that the aim of my study is to show the bad effects of child labour .moreover if the child labour has effects on developing countries in delay in development.

ii-Literature review

a-The meaning of child labour

It was noted that The Child labour is the work of children at unsuitable ages for unsuitable work hours or under unhealthy conditions and under certain circumstances that contrast with their body growth and their education .also their ability for creations (February 2, 1992, The Child Labour Situation) . moreover it was conducted that child labour is the breaking of human rights which obstacle there psychological life and their physical activities (international labour organization ).in addition to that there is a positive meaning of child labour i.e. the children can work with their parents in home ,help in family work or get their pocket money from working in the weekends and in the summer vacations (international labour organization ).

b-Causes of child labour :

there are many causes of child labour the main cause for it is poverty of the families . The international labour organization noted that the poverty of the families is the main cause of child labour because the children have tow work to get money which help in keeping their life and the life of their families . in addition to that the families are not capable to pays funds of the schools . also the children who are living in slums and villages which don’t have any educational facilities so they work .more over the work market are demanding more children to worm because they take low salaries and they are less trouble maker than adults for the employer . furthermore it was noted that The children works due to the poverty of their families so they need income to overcome the challenges of the life as a result they need to send their children to the work to get them money. In the other hand they cant send them to the working fields that give high wages as exportation because of restricting laws so they must send them to works of low wages as agriculture or servings fields. They have to work more hours to increase their income even if some of their brothers or sisters in school their parents get them out and send them to work field( number cruncher Putting children to work,By Stephen Nickell,september 2009 · prospect · 15). In the other hand not all the causes are economic causes some of the are from family where children work with their families in farms , shops and different hand made industries said international labour organization .

Answer: Right now roughly 152 million children are victims of child labour, in over 179 countries across the world. Though many governments have laws in place to protect their youth, much of the world is still suffering from a lack of healthy jurisdiction.

Child labour is defined as work that deprives a person of their childhood. Generally, the legal age at which you are allowed to begin working is 15 - 18. Bolivia has the world's lowest legal minimum age requirement, at just 10 years old. However, the majoroty child labour victims are as young as 5 - 11 years of age.

Child labour has be proven detrimental to the physical health, mental health, and development in youth. Often accompanied with depression, drug dependency, premature aging, malnutrition, etc. We have only just brushed the surface of the true depth and impact this issue has on the individual affected. Time is also a limited resource, and it is estimated $176 billion is lost in potential future wages when children engage in labour instead of completing their education. This goes without mentioning the percentage of deaths among child workers.

Most jobs associated with child labour are extremely harmful. Hazardous conditions occur more frequently, and the risk of being exposed to forced labour, debt bondage, serfdom, and illicit activities such as prostXXXitution, porXXography, or drXXug trafficking greaten significantly. It is estimated that over 1 million children involved in child labour are trafficked globally per year.

Overall, Child labour is a pressing issue affecting hundreds of thousands of lives daily across the world. With the extreme conditions, psychological and physical damage, and other risks associated with child labour, it is hard to deny that it is a violation of human rights.

Luckily there are things you can do to help combat this pressing issue. Organizations like The Bureau of International Labour Affairs (ILAB) and World Vision are working hard and fast to reduce the number of children affected, and to strengthen national policies to protect them. There is still work to do, and it's up to American citizens like us to push for more support by contacting our members of congress and raising our voice on behalf of the millions of children suffering worldwide.

Explanation:

Some of the words are labeled innapropriate by this website, remove the X's from them

explain why different enzymes are required for digestion?

Answers

Answer:

Enzymes are essential for healthy digestion and a healthy body. They work with other chemicals in the body, such as stomach acid and bile, to help break down food into molecules for a wide range of bodily functions.

please help me with this homework problem!!

Answers

Answer:

the last one. Tt and tt

Explanation:

the answer is Tt and tt because

Climax community- most stable community that takes hundreds of years to develop. The types of organisms change due to __?__.


competition


random chance


being the luckiest

Answers

Answer:

competition

Explanation:

An ecological community is a naturally occurring group of native plants, animals and other organisms that are interacting in a unique habitat. Its structure, composition and distribution are determined by environmental factors such as soil type, position in the landscape, altitude, climate and water availability(Department of Agriculture).

A climax community refers to the last stage of ecological succession in which the community remains relatively unchanged unless it is destroyed by events such as fire or human interference.

Competition between species in the same habitat is an important biotic factor in discussing ecological succession and the emergence of climax communities. Competition leads to a drop in the diversity of species in a given ecosystem because the dominant species live on and reproduce while the other species die off.

Discuss the mechanisms of speciation

Answers

Answer:

There are four major variants of speciation: allopatric, peripatric, parapatric, and sympatric. Speciation is how a new kind of plant or animal species is created. Speciation occurs when a group within a species separates from other members of its species and develops its own unique characteristics.

The key to one species diverging into two or more different species is establishing a barrier to gene flow. ... In this way, geographic isolation may lead to reproductive isolation and the formation of new species. Allopatric speciation is thought to be the main mechanism of speciation among most groups of organisms.

Veins transport ____ blood.

fill in the blank please

Answers

Answer:

Veins transport Deoxygenated blood

During mitosis _____ diploid cell divides to produce ____ new daughter cells. Each of the new cells is also _____
and is _____
to the original cell.

Answers

Answer:

gamete, brand , diploid, copy

give two reasons why humans need a balanced ecosystem

Answers

Answer:

us humans need a balanced ecosystem because its what keeps us alive. when having a balanced ecosystem we have cleaned water, purified air, maintained soil, regulates our climate, recycles nutrients, and provides us with food.

The two reason why human required the balanced ecosystem should that it keep alive also it have the cleaned water.

What is balanced ecosystem?

A balanced ecosystem refers to the habit which can be substainable. It comprise of the plants, animals, microorganism that should be based on each other and also with the surroundings. It should exhibited the resourceful energy and the material cycling.

Therefore, The two reason why human required the balanced ecosystem should that it keep alive also it have the cleaned water.

Learn more about ecosystem here; https://brainly.com/question/18167856

Different surfaces absorb the Sun’s energy in different ways. These differences have an influence on weather. As the surface of Earth heats up, the air above the surface heats up as well. In certain parts of the Earth, air will heat up more quickly than others.

In which of the following areas will the air above the surface heat the fastest?

A.
the surface of a large lake

B.
the top of a mountain

C.
a puddle of water in your backyard

D.
a paved road on a sunny day

Answers

D. A paved road on a sunny day

Name a herbivore in this food web.

Answers

Caterpillar is one of the herbivores.

rabbit, they have a plant based diet

10. Wei saw a special type of plastic that would melt and become a liquid when it was placed in the sun, but it would not melt when placed under a desk lamp. Why does light from the sun melt the plastic when light from the desk lamp does not? Because the plastic can take in energy from the light from the sun but not from the light from the lamp. b Because light from the sun carries heat molecules, and light from the desk lamp does not. Because light from the sun pulls energy out of the plastic, and light from the desk lamp does not. Because the sun gives off a type of light that carries erlergy, and light from the desk lamp does not.​

Answers

The answer is A option 1 because just read it it makes sense

3. Cardiac muscle cells make up which type of muscles?
(5 Points)
O A. Voluntary
B. Smooth Muscle Cells
C. Skeletal Muscle Cells
O D. Involuntary

Answers

Explanation:

voluntary muscles are ones that work without you having to think about it..example heart, lungs. part of the APT system...Autonomic ...

What happen to the brain and the brain cavity?

Answers

Answer: OK so The ventricles of the brain are a communicating network of cavities filled with cerebrospinal fluid (CSF) and located within the brain parenchyma. The ventricular system is composed of 2 lateral ventricles, the third ventricle, the cerebral aqueduct, and the fourth ventricle (see the images below).Survival in untreated hydrocephalus is poor. Approximately, 50% of the affected patients die before three years of age and approximately 80% die before reaching adulthood. Treatment markedly improves the outcome for hydrocephalus not associated with tumors, with 89% and 95% survival in two case studies

hope this helps have a awesome night/day❤️✨

Explanation:

Answer:

cranial cavity
The cranial cavity, also known as intracranial space, is the space within the skull that accommodates the brain. The skull minus the mandible is called the cranium. The cavity is formed by eight cranial bones known as the neurocranium that in humans includes the skull cap and forms the protective case around the brain.

Explanation:

how dose wind cause surface currents

Answers

Answer:

Suface currents are mostly caused by the wind because it creates friction as it moves over the water. This friction then forces the water to move in a spiral pattern, creating gyres. In the northern hemisphere, gyres move clockwise; while in the southern hemisphere, they spin counterclockwise.

Humoral immunity is a type of adaptive immunity that results in the circulation of which of the following throughout the blood?


A. antigens


B. macrophages


C. natural killers


D. antibodies

Answers

Answer:

Humoral immunity refers to the component of the adaptive immune response that is caused by B cells, antibodies, and type 2 helper T cells (Th2), as well as circulating mast cells and eosinophils to a lesser extent.

Antibodies is circulated throughout the blood in Humoral immunity.

B cells changed into plasma B cells that is responsible for the production of antibodies against a specific microbe such as bacteria and virus etc. The humoral immune system attacks and controls the antigens that are present outside the infected cells. Humoral immunity is also known as antibody-mediated immunity so it is concluded that antibodies provides immunity in humoral immunity system.

https://brainly.com/question/21865035

a_fault is from the hanging wall drops down

Answers

Answer:

If the hanging wall moves down relative to the footwall, the fault is a normal fault. Normal faults are caused by tensional stress, or stress that pulls rocks apart

Explanation:

Lung cells obtain sodium ions, and chlorine ions from the adjacent blood vessels by which process?

Answers

Answer:

Not sure about the sodium but you might be referring to the Chloride Shift in the lungs.

Explanation:

most cells underego apoptosis if their dna is damaged. How can this be beneficial to an organism? someone pls help

Answers

Answer:

It prevents the cell from passing on those defects to other cells through DNA replication in cell division. By self destructing before it gets the chance to divide, whatever problem the cell had ends right there and doesn't propagate in the organism.

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Bridget knit a total of 15 centimeters of scarf over 3 nights. How many nights will Bridget have to spend knitting in order to knit a total of 40 centimeters of scarf? Solve using unit rates.Please explain Question 16If n = 6, what is the value of 9n 4?.11B.50 52D54 What do organisms need in order to reproduce? This is Science Btw Find the range. please help can someone please help me Correct forms of verb:I ____working. (be)My mother____(cook) my food.They are____(play) in the field.He_____(have) a cricket bat.My father_____(be) a teacher.Suresh,____(do) his homework.He does not____(read) attentivelyThe door_____opened. (be)Usually, Amit_____his work well. (do) What happens when the houses of Congress have approved different versions of the same bill?Both chambers of Congress vote on which version is written most effectively.The president decides which version he or she is willing to sign into law.A conference committee creates one version that both houses vote on.The bill dies unless the members of the originating chamber agree to compromise. biggest transition between school and post school A sugar farm near the coast of Florida applies a nitrogen based fertilizer to their soil three times a year. When rain falls on these fields after it has been fertilized some of the fertilizer runs off into the ocean causing the nitrogen levels in the water to increase. The increase levels of nitrogen can lead to many ecological effects beginning with the rapid growth of algae. This process is known as eutrophication.How can eutrophication affect other organisms in the water?Group of answer choicesThe algae provide food for fishes and other organisms, leading to decreased algae populations.The oxygen in the water is used up as algae is decomposed, reducing the amount available to other organisms.The water becomes better able to support aerobic organisms.The extra nitrogen provides additional food for the other organisms, increasing their population. Question 3:Solve the inequality 3x 8 > 16 Part 1: A Comedy of Manners: The Importance of Being EarnestInstruction-Identifying a Feature of a Comedy of Manners-Jack: I am in love with Gwendolen. I have come up to town expressly to propose to her.Algernon: I thought you had come up for pleasure? . . . I call that business.Jack: How utterly unromantic you are!Algernon: I really dont see anything romantic in proposing. It is very romantic to be in love. But there is nothing romantic about a definite proposal. Why, one may be accepted. One usually is, I believe. Then the excitement is all over. The very essence of romance is uncertainty. If ever I get married, Ill certainly try to forget the fact.The Importance of Being Earnest, Oscar Wilde--What feature of a comedy of manners is present in the passage?the differences between country and city lifean illustration of class differencesa commentary on marriage One of Lincoln's greatest achievements was (A) Building more factories in the North(B) Selling cotton to Europe, and thus bringing money to the south.(C) Starting the Social Security system.(D) Preserving the United States of America The random variable X has the following probability density function: fX(x) = ( xex , if x > 0 0, otherwise. (a) Find the moment generating function of X. (b) Using the moment generating function of X, find E[Xn] for all positive integers n. Your final answer should be an expression that depends only on n. A line passes through (-3, -1) and is parallel to the graph of y = 3x-4 has a slope Please help To understand the relationships between the parameters that characterize a wave. It is of fundamental importance in many areas of physics to be able to deal with waves. This problem will lead you to understand the relationship of variables related to wave propagation: frequency, wavelength, velocity of propagation, and related variables. Note that these are kinematic variables that relate to the wave's propagation and do not depend on its amplitude.1. Traveling waves propagate with a fixed speed usually denoted as v (but sometimes c). The waves are called __________ if their waveform repeats every time interval T.a. transverseb. longitudinalc. periodicd. sinusoidal2. If the velocity of the wave remains constant, then as the frequency of the wave is increased, the wavelength __________.a. decreasesb. increasesc. stays constant In one or two paragraphs, describe two economic challenges facing Russia. How do you think Russia would work towards making its economic future more stable? How many square inches are in 60 square feet?5 square inches72 square inches720 square inches8,640 square inches A journalist is interviewing a high school student who has just survived a school shooting. Imagine the dialogue (150 words) Please help!! Im being timed SEE BELOW!! Which relation is a function?A. (1, 0), (3.0), (1.1), (3, 1) (1.3)B. (1, 1), (2, 2), (3, 3), (4, 4). (5, 8). C. ( 2, 7), (6,5), (4.4), (3, 3), (2, 1)D. (9. -3), (19, 3) (4, -2), (4, 2), (0, 0)