Among Nature’s most intriguing phenomena are the partnerships formed by any different species. The name used for these relationships, Symbiosis, comes from Greek meaning "living together". Not all symbiotic relationships are the same. There are some called commensal relationships, in which one partner gains a benefit while the other gains little or none but is not harmed. One example is the relationship between two types of fish remoras and sharks. The remora, which is long and often striped, attaches itself to a shark (sometimes to another type of fish or a whale), using a sucker on its head. When the shark makes a kill, the hitchhiker briefly detaches itself to feed on the scraps. Another type of symbiotic relationship is parasitism, in which one partner benefits at the expense of others. Ticks and tapeworms are among familiar parasites. 

The third type of symbiotic relationship, called mutualism, is a true partnership in which both partners benefit. The relationship may be limited as when zebras and wild best graze together on the vast African grasslands. Each species can survive on its own, but together their chances of detecting predators are improved because each contributes a specially keen sense. (Zebras have the better eyesight;  wild beast, hearing and sense of smell). In a few cases partners are so interdependent that one cannot survive without the other. Most mutualistic relationships probably lie some where in between

Remora attaches itself to the shark or whale 

Read the passage carefully and give the answer of following questions.

Poverty can be defined as a social phenomenon in which a section of the society is unable to fulfil even its basic necessities of life. When a substantial segment of the society is deprived of the minimum level of living and continues at a bare subsistence level, that society is said to be plagued with mass poverty. The countries of the third world exhibit invariably the existence of mass poverty, although pockets of poverty exist even in the developed countries of Europe and America.

Attempts have been made in all societies to define poverty, but all of them are conditioned by the vision of minimum or good life obtaining in society. For instance, the concept of the poverty in the U.S.A. would be significantly different from that in India because the average man is able to afford a much higher level of living in the United States. There is an effort in all definitions of poverty to approach the average level of living in a society and as such these definitions reflect the coexistence of inequalities in a society and the extent to which different societies are prepared to tolerate them. For instance, inn India, the generally accepted definition of poverty emphasizes minimum level of living rather than a reasonable level of living. This attitude is borne out of a realization that it would not be possible to provide even a minimum quantum of basic needs for some decades and therefore, to talk about a reasonable level of living or good life may appear to be wishful thinking at the present stage. Thus, political considerations enter the definitions of poverty because programmes of alleviating poverty may become prohibitive as the vision of a good life widens.

Societies in the third world can be characterised as plagued by mass poverty, because

Direction: In these question, you have brief passages with five questions following the passage. Read the passage carefully and choose the best answer to each question out of the four alternatives.

From flying all the way from London to Mumbai's Aurora theatre to giving free auto rides to those who want to watch Kabali on its release day - Rajinikanth's fans are yet again out to prove why the superstar fandom is beyond comprehension. As the release of his Kabali nears, the buzz around the film is palpable. The sixty-five-year-old actor's hardcore fans, from different walks of life, are stoked about the first day first show (FDFS) experience.

"Some people might think we are crazy, but they won't understand our love for Thalaivar. If you're not watching the first show of a Rajinikanth starrer on release day, you're breaking a tradition," says twenty-five years old auto driver Vinek Pandey.

On July 22, when Kabali will hit the screens, the auto driver with his family will be watching the earliest show of the film in the city.

Bengaluru-based twenty-three years old techie turned-film critic much popular on social media AshKay Shahrukh will be watching Kabali with random strangers he invited via a Facebook post. "The only common factor between all of us is our love for Rajinikanth. In an open post on Facebook, I've invited genuine Thalaivar fans whom I've never met to join me to watch the film FDFS," said Shahrukh, who will also be reuniting with his schoolmates to watch the film.

"In 2007, a large group of us from school watched Sivaji. Seven of us from that group will be reuniting to watch Kabali. I've applied for leave from work and my boss is upset that I've motivated a few others to take leave too," he added.

"His films come once in two years, so it's totally worth it," said Syed Iftequar, a sixty-two years old enthusiast, who works in a managerial position. "I've already blocked tickets for the FDFS in Chennai. My friends from Mumbai and Hyderabad are flying down to watch the film. It's good to be watching 'Kabali' at a place where it's celebrated the way it's supposed to be," he said. Kabali also stars Radhika Apte as Rajinikanth's love interest.

The best suitable place to watch 'Kabali' according to an admirer in the passage is

Directions : You have a passage with 10 questions. Read the passage carefully and choose the best answer to each question out of the four alternatives.

Long ago men spent most of their time looking for food. They ate anything they could find. Some lived mostly on plants. They ate the fruit, stems, and leaves of some plants and the roots of others. When food was scarce, they ate the bark of trees. If they were lucky, they would find a bird’s nest with eggs. People who lived near the water ate fish or anything that washed ashore, even rotten whales. Some people also ate insects and small animals like lizards that were easy to kill.

Later, men learned to make weapons. With weapons, they could kill larger animals for meat. These early people had big appetites. If they killed an animal, they would drink the blood, eat the meat, and chew the bones. When they finished the meal, there was nothing left.

At first men wandered from place to place to find their food. But when they began to grow plants, they stayed in one place and ate what they could grow. They tamed animals, trained them to work, and killed them for meat. Life was a little better then, but there was still not much variety in their meals. Day after day people ate the same food.

Gradually men began to travel greater distances. The explorers who sailed unknown seas found new lands. And in these lands they found new food and spices and took them back home.

The Portuguese who sailed around the stormy Cape of Good Hope to reach China took back “Chinese apples”, the fruit we call oranges today. Later, Portuguese colonists carried orange seeds to Brazil. From Brazil oranges were brought to California, the first place to grow oranges in the United States. Peaches and melons also came from China. So did a new drink, tea.

At first men wandered from place to place to find their food. Then some of them began to stay in one place. Why?

In the following passage there are blanks each of which has been numbered. These numbers are printed below the passage and against each four words have been suggested, one of which fits the blanks appropriately. Find out the appropriate word in each case.

The empty ‘Chyawanprash’ containers near the makeshift kitchen at the elephant camp say it all – that the elephants have been having a healthy, nutritious diet as (1) by the veterinary doctors.  The camp managers say that the elephants get to have the nutritious (2) twice a day – morning before bath and early evening, walk eight to 1 km on the walking track twice a day and have loads of green fodder. A few of these elephants also undergo special medication, if necessary. ‘Valli’, a female elephant from the Koodal Azhagar Perumal Koil, Madurai, and ‘Vedanayagi’ another female elephant from Bhavani, Erode, are two such elephants. Based on the veterinarians’ prescription, the managers are treating the two for foot rot disease.
 The elephants get to (3) their legs in a decoction of seven chemicals, a traditional formula, to get over the problem. The foot rot sets in when the elephants are obese, or stand on hard surface or bitumen-topped roads for long with very little movement.
 Likewise, two other elephants are also undergoing eye treatment to overcome the ‘watery eye’ problem. This occurs when the elephants’ living (4) is hot. The managers say that the ingredients of the food and the quantity given to the elephants (5) from one to another and are dependent on the age and gender.
 Based on the two, a body-mass-index of sorts is derived and that determines the food and the quantity. Right at the start of the camp, the managers have noted down the weight of each elephant.
 This will be compared to the (6) that they will record when the elephants exit the camp around the second week of January. The managers say that one important factor in the camp is giving green fodder, which the elephants (7) in plenty in the camp. For the weak elephants, the camp managers give twigs of ‘aal’, ‘arasu’ ‘athi’ trees and also ‘koondapanai’. They add that the managers are also (8) the mahouts and those accompanying the elephants on the ways to keep the animal healthy. This is (9) the mahouts are with the elephants 24x7. And also because the animal should continue to live in a (10) environment.

Choose the correct option for (7). 

Read the passage carefully and choose the best answer to each question out of the four alternatives.

Doing an internship at the University of Lille in France, I almost always found myself stuck whenever I had to speak to non-Indians about India or on anything 'Indian'. This was more because of the subtle differences in the way the French understood India in comparison to what I thought was 'Indian'. For instance, when I, or any Indian for that matter, say 'Hindi' is an Indian language, what it means is that it is one of the languages widely spoken in India. This need not be similar to the understanding that the French would have when they hear of 'Hindi' as an Indian language. Because for them Hindi then becomes the only language spoken in India. This is a natural inference that the French, Germans, Italians and many other European nationals would tend to make, because that is generally how it is in their own respective countries. The risk of such inappropriate generalisations made about 'Indian' is not restricted to language alone but also for India's landscape, cuisine, movies, music, climate, economic development and even political ideologies. The magnitude of diversity of one European country can be easily compared to that of one of the Indian State, isn't it? Can they imagine that India is one country whose diversity can be equated to that of the entire European continent? The onus is upon us to go ahead and clarify the nuances in 'Indianness' while we converse. But why should one do so? How does it even matter to clarify?

The writer compares diversity of one European country to the diversity of ____________.

A passage is given with 5 Questions following it. Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.

The public distribution system, which provides food at low prices, is a subject of vital concern. There is a growing realization that though India has enough food to feed its masses two square meals a day, the monster of starvation and food insecurity continues to haunt the poor in our country. Increasing the purchasing power of the poor through providing productive employment leading to rising income, and thus good standard of living, is the ultimate objective of public policy. However, till then, there is a need to provide assured supply of food through a restructured, more efficient and decentralized public distribution system (PDS). Although the PDS is extensive world – it hasn't reached the rural poor and the remote places. It remains an urban phenomenon, with the majority of the rural poor still out of its reach due to lack of economic and physical access. The poorest in the cities and the migrants are left out, for they generally do not possess ration cards. The allocation of PDS supplies in big cities is larger than in rural areas. In view of such deficiencies in the system, the PDS urgently needs to be streamlined. Also, considering the large it is one of the largest such systems in the food grains production combined with food subsidy on one hand and the continuing slow starvation and dismal poverty of rural population on the other, there is a strong case for making PDS target group oriented. By making PDS target group oriented, not only the poorest and the neediest would be reached without additional cost but we can also reduce the overall costs incurred. 

What should be an appropriate step to make the PDS effective? 

Directions :Read the given passage carefully and answer the following questions. Certain parts have been highlighted to help answer the questions.
  Every year, around one million people die of mosquitoborne diseases according to the World Health Organization (WHO). This is why mosquitoes are considered one of the deadliest living creatures on the planet — not because they are lethal themselves, but because many of the viruses and parasites they transmit are
 In the absence of an effective vaccine for dengue fever, Zika fever, chikungunya and other mosquito-borne diseases, researchers have developed genetic strategies to reduce mosquito populations. One such strategy involves the release into the wild of genetically modified (GM) mosquitoes that express a lethal gene — a strategy believed to have little impact on the overall DNA of wild populations of mosquitoes
 The transfer of new genes from GM organisms to wild or domesticated non-GM populations is a key criticism of GM crops like soybean and corn. There are concerns that the introduction of GM genes into non-target species could have negative consequences for both human and environmental health.
 Oxitec, a company that spun out of research at Oxford University in the early 2000s, developed and trademarked GM Friendly™ mosquitoes (also known as strain OX513A of Aedes aegypti). These male GM mosquitoes have what the company describes as a “self-limiting” gene, which means that when these so-called friendly mosquitoes’ mate, their offspring inherit the self-limiting gene which is supposed to prevent them surviving into adulthood.
 In theory, when these mosquitoes are released in high numbers, a dramatic reduction in the mosquito population should follow. According to research published by Oxitec researchers in 2015, field trials involving recurring releases of Friendly™ mosquitoes demonstrated a reduction of nearly 95 per cent of target populations in Brazil. In these field trials, experiments were not performed to assess whether GM mosquitoes might persist in the wild.
 A recent study from the Powell lab at Yale University has since confirmed that some of the offspring of the GM mosquitoes didn’t succumb to the self-limiting lethal gene and survived to adulthood. They were able to breed with native mosquitoes and thereby introduce some of their genes into the wild population
 Meanwhile, the impact of mosquitoes carrying these new genes remains largely unknown. One significant worry is that a new breed of mosquito might emerge that is more difficult to control. These new genes could also potentially alter evolutionary pressures on viruses carried by mosquitoes, like dengue fever, in unpredictable ways. This includes potentially increasing their virulence or changing their host-insect interactions. These are hypothetical risks that have been raised by scientists, and reflect the need for further study.

What is one of the methods being developed to control population of mosquitoes?