Friday, November 10, 2017

ALS A& E Science Practice Test/ Reviewer - 2

Science Reviewer

Select the letter of the best answer.

1. What did Robert Hooke use to view cells?
          a. cork
          b. fuzz
          c. saliva
          d. tree bark

2.  The three basic needs of living things are the following except:
          a. people
          b. air
          c. water
          d. warmth
3. Which of the following is not part of the cell theory?
a. All living organisms are composed of three or more cells.
b. The cell is the basic unit of structure and organization in organisms.
c. Cells arise from pre-existing cells.
d. Some living organisms have only one cell.

4. With the continual improvements made to _________, cell biology was made possible in the 17th century.

          a. microscope
          b. telescope
          c. stethoscope
          d. periscope

5. Cell theory was formulated in 1839. The following scientist did not contribute to the cell theory:

          a. Robert Hooke
          b. Matthias Schleiden
          c. Theodor Schwann
          d. Rudolf Virchow

6. The following are characteristics of living things except one:
          a. Living things need oxygen to keep alive.
          b. Living things use energy for maintenance and growth.
          c. Living things grow and reproduce other living things.
          d. Livings things response and adapt to their environment.
7. Which one of these is not considered a good attribute of a hypothesis?
          a. complexity
          b. consistency
          c. power of prediction
          d. closest to observable things

8. A group of cells that perform a common function is called a/an _______.

          a. tissue
          b. organ
          c. digestive system
          d. organism

9. All are characteristics of bacteria except:

          a. Bacteria have only one method of reproduction through binary fission.
          b. The cells of bacteria do not have nuclei.
          c. Bacteria are harmful and also beneficial to man.
          d. Bacteria are single cellular microscopic organisms.

10. Dry ice is frozen _________.

          a. carbon dioxide
          b. water
          c. oxygen
          d. hydrogen

11. Aling Naty put mothballs inside their closets.  After several months, she discovered that all of them were gone. This physical process is called___.

          a. sublimation
          b. condensation
          c. digestion
          d. evaporation

12. Which of these cannot be considered a step in scientific method?

          a. Using strategies in playing Dota.
          b. Gathering reference books on how typhoon is formed.
          c. Observing that a needle floats on water.
          d. Testing what happens when sugar and water are mixed together.

13. When a color-blind man marries a woman who have no trace of the condition, which of the following is correct.

          a. Their baby girl will be a carrier.
          b. Their baby girl will be color-blind.
          c. All their children will be color-blind.
          d. Their baby boy will be color blind.

14. A fertilized egg is called a/an _________.

          a. zygote
          b. gamete
          c. ovum
          d. ovulation

15. The chemical symbol of an ordinary salt is_____.

          a. NaCl
          b. H2O
          c. H2SO4
          d. CO2

16. Mang Delfin planted an albino corn seeds in an open field with good irrigation. After one week, the plants grew to about 1 foot but eventually died in the following days?

          a. The plants cannot produce their own foods.
          b. The pests killed the plants.
          c. Too much sunlight killed the plants.
          d. Mang Delfin did not put enough fertilizer on the soil.

17. The following events are due to condensation except one:

          a. The clothes dried in an open space.
          b. Having a cold soda on a hot day, the can “sweats.”
          c. The mirror in the bathroom during a shower becomes foggy.
          d. The clouds are formed.

18. New born baby has fewer bones than an adult.

          a. False
          b. True
          c. Sometimes
          d. It depends.

19. A monsoon wind that comes from the southwest.

          a. Habagat
          b. Tropical Easterlies
          c. Amihan
          d. Doldrum

20. The earth started revolving around the sun on 01 January 2017. When it reaches to its starting point, the date will be approximately______.

          a. 31 December 2017
          b. 02 January 2018
          c. 02 January 2017
          d. 31 January 2017

21. They are blood vessels that deliver oxygen-rich blood from the heart to the tissues of the body.

          a. Arteries
          b. Capillaries
          c. Veins
          d. Haemoglobin

22. What happens when the moon is between the earth and the sun?

          a. Solar eclipse
          b. Tidal waves
          c. Lunar eclipse
          d. Earthquake

23. The metal which is considered the best conductor of electricity.

          a. Silver
          b. Gold
          c. Aluminum
          d. Copper

24. Which of the following is not an inverse relationship?

          a. Pressure and Temperature of gas if Volume is constant
          b. Savings and Expenditure if Income is constant
          c, Resistance and Current if Voltage is constant
          d. Speed and Time if Distance is constant

25. It is the nearest star to the earth.

          a. Sun
          b. Leo
          c. Satellite
          d. Moon

26. A needle placed on a glass of water floats because of______.

          a. surface tension
          b. tensile strength
          c. flotation
          d. buoyancy

27. Evolution by natural selection of organisms is possible if all but one is present.

          a. supremacy
          b. variety
          c. differential reproduction
          d. heredity

28. If 4 balloons are filled with hydrogen, beryllium, helium, and lithium. The balloon which floats higher is filled with_____.

          a. Hydrogen
          b. Beryllium
          c. Helium
          d. Lithium

29. It is the most abundant gas in the atmosphere.

          a. Nitrogen
          b. Carbon dioxide
          c. Oxygen
          d. Argon

30. The longest and the strongest bone in the human body.

          a. femur
          b. skull
          c. humerus
          d. pelvis

31. Which of the following statement is true?

          a. Each person has two copies of each gene, one inherited from each parent.
          b. In humans, genes are of the same size.
          c. DNA is made up of genes.
          d. Each gene contains many chromosomes

32. One of the following statements is not correct. Which one?

          a. Genotypes are internal visible characters such as height, color of eyes and dimple.
          b. The transfer of characters from parents to offspring is called heredity,
          c. Traits were passed on independently of others from parents to offspring.
          d. There are dominant and recessive traits passed on randomly from parents to offspring.

33. Which of the following animals is not a mammal?

          a. shark
          b. whale
          c. dolphin
          d. seal

34. On a stormy day, you see the lightning first before you hear the thunder. This is explained by one of the following:

          a. Light travels faster than sound.
          b. You see the lightning first because it is very bright.
          c. Your eyes are sharper than your ears.
          d. The sound of the storm is louder than the sound of the thunder.

35. A glass full of water is placed inside a small bowl. A golf ball is submerged on the glass. What can you conclude about the displaced water?

          a. Its volume is equal to the volume of the golf ball.
          b. Its weight is equal to the volume of the golf ball.
          c. Its weight is equal to the weight of the golf ball.
          d. Its volume is equal to the weight of the golf ball.

36. “For every action, there is an equal and opposite reaction.” This law is attributed to which scientist below:

          a. Sir Isaac Newton
          b. Archimedes
          c. Gregor Mendel
          d. Albert Einstein

37. The speed of light which is approximately 186,300 miles per second or 300,000 kilometers per second, is first estimated by this Danish astronomer.

          a. Ole Roemer
          b. Galileo Galilei
          c. Nicholas Copernicus
          d. Johannes Kepler

38. The stapes, the smallest and stirrup-shaped bone, is located in which part of the human body?

          a. Ear
          b. Nose
          c. Groin
          d. Eye

39. What is not a greenhouse effect?

          a. It is the result of the lessening of greenhouse gases in the atmosphere due to deforestation and burning up of fossil fuel.
          b. it is the process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without its atmosphere.
          c. It increases the temperature of the earth by trapping heat in our atmosphere.
          d. It refers to circumstances where short wavelengths of visible light from the sun pass through a transparent medium and are absorbed, but the longer wavelengths of the infrared re-radiation from the heated objects are unable to pass through that medium.

40. When your tumor is benign, it means that it is_____.

          a. non-cancerous
          b. cancerous
          c. moving in other parts of the body
          d. reproducing rapidly

41. David has three kilos of gold on the moon while Ernest has three kilos of gold on earth. Who has more gold?

          a. David
          b. Ernest
          c. Both of then have the same amount of gold.
          d. It depends on how long David has been on the moon

42. Raha Moharrak, the first Saudi woman to climb Everest, is trying to boil water for rice at base camp. How should she alter her recipe at a high elevation? (Credit to Melissa Hirsch of Gill, Massachusetts)

a. She should simmer the rice for more time. Because air pressure is lower at high altitudes, water boils at a lower temperature.
b. She should simmer the rice for less time. Because air pressure is lower at high altitudes, water boils at a lower temperature.
c. She should cook the rice at a lower temperature. Because air pressure is lower at high altitudes, water boils at a lower temperature.
d. She should cook the rice at a higher temperature. Because air pressure is lower at high altitudes, water boils at a lower temperature.

43. Table salt is made from:  (Credit to Lisa Paschall of NY, NY).

          a. a highly reactive metal and a toxic gas
          b. two unreactive nonmetals
          c. two highly reactive metals
          d. two toxic gases
44. Which of the following conditions on Mars would be the first to kill a human who is unprotected and unassisted by life support? (Credit to Edmund Smith of Hartford, Connecticut)

a. Low air pressure.
b. Colder than Antarctic temperatures.
c. High CO2 atmosphere.
d. Excess solar radiation due to a missing magnetic field.

45. O+ blood can be transfused into people with which blood types?

          a. Any blood type that is RH+
          b. Any blood type
          c. Only other O+ blood type
          d. Any blood type that is RH-

46. When a helium nucleus is being ejected from the nucleus of an atom, ______ took place.

          a. alpha decay
          b. beta  decay
          c. gamma decay
          d. electromagnetic radiation

47. The 4 basic forces of nature that govern the interaction of matter and energy are:

          a. gravitational, electromagnetic, strong, weak
          b. electricity, gravity, magnetism, thermodynamics
          c. kinetic, potential, gravitational, inertia
          d. gravitational, volcanic, electrodynamics, radiation

48.  6.02 x 1023 represents which number?

          a. Avogadro’s number
          b. Euler’s function
          c. speed of sound
          d. Hardy-Ramanujan number

49.  The part of the brain that controls involuntary functions such as breathing and heart rhythms.

          a. Medulla oblongata
b. cerebellum
          c. frontal lobe
          d. occipital lobe

50. Natural selection is not the only process that effects the survival of certain alleles. What is the particular genetic effect that states certain alleles will be expressed by chance fluctations?

          a. genetic drift
          b. mutation
          c. evolution
          d. speciation

--o0o—GOOD LUCK—o0o--

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