ECAT Pre General Science English Online Test MCQs With Answers

Anxious

Choose correct word or phrase that is most opposite of the word given.Tempt

Khalid's score on the test is ______ in the class

Fleas are perfectly designed by nature to feast on anything containing blood. Like a shark in the water or a wolf in the woods, fleas are ideally equipped to do what they do, making them very difficult to defeat. The bodies of these tiny parasites are extremely hardy and well-suited for their job.

A flea has a very hard exoskeleton, which means the body is covered by a tough, tile-like plate called a sclerite. Because of these plates, fleas are almost impossible to squish. The exoskeletons of fleas are also waterproof of fleas are also waterproof and shock resistant, and therefore fleas are highly resistant to the sprays and chemicals used to kill them.

Little spines are attached to his plate. The spine the flea scurries through an animal’s fur in – search of grooming pet tries to pull a flea off through the hair coat, these spines will extend and stick to the fur like Velcro.

Fleas are some of the best jumpers in the natural world. A flea can jump seven inches, or 150 times its own length, either vertically or horizontally. An equivalent jump for a person would be 555 feet, the height of the Washington Monument. Fleas can jump 30,000 times in a row without stopping, and they are able to accelerate through the air at an incredibly high rate – a rate which is over ten times what humans can withstand in an airplane.

Fleas have very long rear legs with huge thigh muscles and multiple joints. When they get ready to jump. They fold their long legs up and crouch like a runner on a staring block. Several of their joints contain a protein called resilin, which helps catapult fleas into the air as they jump, similar to the way a rubber band provides momentum to a slingshot. Outward facing claws on the bottom of their legs grip anything they touch when they land.

The adult female flea mates after her first blood meal and begins producing eggs in just 1 to 2 days. One flea can lay up to 50 eggs in one day and over 2,000 in her lifetime. Flea eggs can be seen with the naked eye, but they are about the size of a grain of salt. Shortly after being laid, the eggs begin to transform into cocoons. In the cocoon state, fleas are fully developed adults, and will hatch immediately if conditions are favorable. Fleas can detect warmth, movement, and carbon dioxide in exhaled breath, and these three factors stimulate them to emerge as new adults. If the flea does not detect appropriate conditions, it can remain dormant in the cocoon state for extended periods. Under ideal conditions, the entire life cycle may only take 3 weeks, so in no time at all, pets and homes can become infested.

Because of these characteristics, fleas are intimidating opponents. The best way to control fleas, therefore, is to take steps to prevent an infestation from ever occurring.

Based on information in the passage, the reader can understand that

Cindy liked parks. She liked the trees and grass and nature. She liked the birds and squirrels she say in parks. She also liked walking down wooded trails or riding bikes along gravel paths. Parks were a lot more fun to exercise in than just walking down the street. because there was so much to see.She had been to many kinds of parks. Some were in mountains, with rivers and hiking. Some were open areas with broad stretches of green grass to play on. Others were in the forest, with paths running beneath towering trees with sweeping branches overhead. Cindy's favorite parks were near lakes.There was a lake park not far form her house. It had a boardwalk trail that was set on pilings across a shallow lake.That was the best part. She loved to walk along the brown wood path and stop along the way, looking in the water for frogs and turtles. There were a few pavilions to stop and sit under in the shade. The water was deeper near them, so she could see fish sometimes. Occasionally, she would even see long-legged water birds, like cranes. The fall was the best time to visit the lake parks. With the leaves changing color, it was very beautiful. The sun would be out in the cloudy sky, and then cool breezes would blow through the reeds and water grasses.Spring was nice, too, because all the butterflies were out. The flowers and blossoming trees along the wooded paths were fragrant and beautiful. The lake grasses were tall and green, rustling in the wind. Cattails bobbed among the reeds. It was a good time to visit. Summer was okay. It was still pretty, but too hot. At least in winter things were pretty, if in a stark and cold way. The white dusting of snow that covered everything gave the park a clean look. It was fun to follow other people's footprints in the snow, or to go out on the boardwalk and look at the frozen top of the lake.If Cindy had her way, she would visit the park every day. Come to think of it, she did it was also a great place to do homework or read.

Acquit

Choose correct word or phrase that is most similar to the word givenCATHARSIS

Yaqub says, "I am ill."

He was absorbed ______ studies.

Choose correct word or phrase that is most similar to the word givenDOCILE