Cats are carnivorous mammal of the family Felidae. They cannot chew their food, and their teeth are adapted to stab, anchor, and cut flesh. All cats except the cheetah have strong, sharp retractile claws. They are not adapted for long chases but prowl their prey of padded feet and try to overwhelm it in short dash or pounce. Big cats roam over a large area, usually alone but sometimes in family groups, for example, a pride of lions can contain as many as 37 individuals. Cats generally are nocturnal animals, the retina of their eyes made extra sensitive to light by a layer of guanine, which causes the eyes to shine in the dark. Tigers are largest of the cats. They are identified by their characteristic striped coat. They inhabit forests and grasslands in Asia where populations have suffered from hunting, deforestation, and demand for tiger parts in traditional medicine.

The synonym of 'prowl' is__________.

Choose the correct answer from the alternatives:

The phrase 'pick up' mentioned in the passage means-

According to the passage, viruses can ———.

Read the passage below and answer the questions that follow.

A virus is a very tiny type of germ that can make you extremely sick. Viruses only can survive in the living things. Viruses can cause many different types of infectious diseases including the common cold, flu and smallpox. Viruses take over living cells and make many copies of themselves. These new virus particles go on to infect other cells, When our body is being affected by a virus, our immune system kicks into action to stop or slow it down. At the end of 2019, the world came across a new type of virus called the Coronavirus (COVID-19). We have known about and studied coronaviruses for decades, but COVID-19 was a new strain to humans. COVID-19 is much more serious than the common cold or flu. It spread far and wide from March 2020, causing a pandemic, but timely invention of vaccines has stopped the outbreak of the pandemic.

According to the passage, which of the following is more contagious?

It is not only diet and lifestyle that make you obese. There is another factor that lies in your part of DNA called gene that may influence the shape of your body. A study has recently revealed that genes may play a role in regulating body shape. The effect of genes may be stronger for women than for men. Scientists have found gene variations linked to obesity and fat, which explain why some people are apple-shaped and some are pear-shaped. Previous studies found that when we store fat in our bodies it can affect our health. More fat around the waist is linked with an increased risk of type 2 diabetes and heart disease while having a fat posterior and thighs may offer some protection against diabetes and heart disease.

Experts have opined that in most cases obesity is caused by unhealthy diet and lifestyle and that tacking obesity is challenging. However, recent developments in genetics will enable more targeted approaches to obesity prevention and to the invention of new drugs.

A "study" refers to-