eQuizShow
OGT Practice
Knowledge and Inquiry
Question: What is the difference between a measurment of 185 grams and a measure of 185.00 grams?
A - 185 grams is a more precise measurement.
B - 185.00 grams is a more precise measurement.
C - 185.00 grams is a larger measurement.
D - There is no difference between these two measurements.
Answer: B - 185.00 grams is a more precise measurement.
Question: Complete the following analogy : Predator is to prey as :
A - turkey is to human
B - lion is to zebra
C - horse is to colt
D - rooster is to hen
Answer: B - lion is to zebra
Question: An aquatic ecologist collects data about the water quality of an Ohio lake throughout the year. In the summer, the ecologist shares data with a public health official from a nearby town. Which data would a public health official use to determine whether the water was safe for swimming?
A. the temperature of the surface water
B. the amount of dissolved oxygen in the deep water
C. the number of water lilies, N. odorata, growing in the lake
D. the concentration of E. coli bacteria near the surface of the lake
Answer: D. the concentration of E. coli bacteria near the surface of the lake
Question: If you were working for the Center for Disease Control and discovered a new, highly dangerous pathogen, what information should be presented to the public that may prevent a widespread epidemic of the disease?
A. the fatality rate caused by the pathogen
B. a report on how the pathogen is transmitted from one organism to another
C. pictures showing microscopic images of the pathogen so they will be familiar with it
D. a description of the surface receptors found on the pathogen and the immune response
Answer: B. a report on how the pathogen is transmitted from one organism to another
Question: An aquatic ecologist collects data about the water quality of an Ohio lake throughout the year. In the summer, the ecologist shares data with a public health official from a nearby town. Which data would a public health official use to determine whether the water was safe for swimming?
A. the temperature of the surface water
B. the amount of dissolved oxygen in the deep water
C. the number of water lilies, N. odorata, growing in the lake
D. the concentration of E. coli bacteria near the surface of the lake
Answer: D. the concentration of E. coli bacteria near the surface of the lake
Physical Science
Question: Which event is caused by friction?
A - A golf ball stops rolling on a putting green.
B - A rocket accelerates in space.
C - A car rolls down a hill.
D - A man slips on the ice.
Answer: A - A golf ball stops rolling on a putting green.
Question: Weight can be best described as :
A - an acceleration
B - identical to mass
C - an increase in gravitational force
D - gravitational force acting on a mass
Answer: D - gravitational force acting on a mass
Question: Which choice is a pair of isotopes?
A - carbon-12 and carbon-14
B - carbon-14 and nitrogen-14
C - carbon-12 and nirogen-12
D - nitrogen-14 and silicon-28
Answer: A - carbon-12 and carbon-14
Question: Acceleration is proportional to the net force acting on an object and inversely proportional to the mass of the object. Which equation expresses this statement?
A - a=F/m
B - a=F*m
C - F=a/m
D - a=m/F
Answer: A - a=F/m
Question: Speed and velocity are similar except that velocity has :
A - an acceleration component
B - a distance component
C - a time component
D - a directional component
Answer: D - a directional component
Life Science
Question: The fluid in which most life processes take place is called the :
A - cytoplasm
B - golgi
C - ectoplasm
D - vacuole
Answer: A - cytoplasm
Question: Of these nutrients, which one is the LEAST likely to be used as a source of energy?
A - sugar
B - starch
C - fat
D - protein
Answer: D - protein
Question: A gorilla's sperm cell contains 24 chromosomes. A gorilla's body cell contains :
A - 12 chromosomes
B - 12 pairs of chromosomes
C - 24 chromosomes
D - 24 pairs of chromosomes
Answer: D - 24 pairs of chromosomes
Question: Which is an example of a gamete?
A - sperm cell
B - muscle cell
C - nerve cell
D - blood cell
Answer: A - sperm cell
Question: Listed below are four of the steps in protein synthesis. Which step moves the process out of the nucleus and into the cytoplasm?
A - mRNA is made in nucleus
B - DNA strands seperate
C - mRNA goes to ribosome
D - tRNA brings amino acids
Answer: C - mRNA goes to ribosome
Earth and Space Science
Question: The greatest distance in space would be between :
A - two different galaxies
B - two stars in one galaxy
C - one star and its planet
D - a planet and its satellite
Answer: A - two different galaxies
Question: The sun rises in the east and sets in the west because Earth :
A - rotates from east to west
B - rotates from west to east
C - revolves around the sun
D - revolves around the moon
Answer: B - rotates from west to east
Question: If the gravitational force of the sun suddenly increased, how would the motion of Earth have to change to maintain its relatively constant orbital distance from the sun?
A - Earth's rotational speed would have to increase.
B - Earth's rotational speed would have to decrease.
C - Earth's orbital velocity would have to increase.
D - Earth's orbital velocity would have to decrease.
Answer: C - Earth's orbital velocity would have to increase.
Question: An erupting volcano commonly releases lava, cinders, and hot gases at Earth's surface. Volcanic activity represents an energy exchange between the :
A - lithosphere and the hydroshere
B - lithosphere and the atmosphere
C - hydrosphere and the atmosphere
D - hydrosphere and the lithosphere
Answer: B - lithosphere and the atmosphere
Question: Convection cells in Earth's mantle are caused by heat being released from the decay of radioactive materials deep in the ground. The slow-flowing movement of the mantle causes :
A - the continents to drift
B - rotation of the Earth
C - wind belts in the atmosphere
D - expansion of Earth's surface
Answer: A - the continents to drift
Technology
Question: Bacillus thuringiensis (Bt) is a bacterium that contains a gene that results in the production of a natural pesticide that kills insects. Genetic engineers have successfully inserted this Bt gene into the DNA of some corn varieties, allowing the corn to produce its own pesticide. What negative consequence could result from this technology?
A. Only corn that is resistant to the Bt gene will survive.
B. Individual insects that eat the genetically modified corn will develop resistance to Bt.
C. The genetically modified crops will insert this Bt gene into the DNA of humans that eat the corn.
D. Only Bt resistant insects will survive to reproduce, eventually producing a population of entirely resistant individuals.
Answer: D. Only Bt resistant insects will survive to reproduce, eventually producing a population of entirely resistant individuals.
Question: Using scientific knowledge about electricity and magnetism to build an electromagnet is best described as :
A - a new scientific investigation
B - an observation of natural events
C - a new technological development
D - a prediction of future discoveries
Answer: C - a new technological development
Question: The artificial heart, which has allowed many people to live longer lives, is an example of :
A - scientific inquiry affecting society
B - society affecting scientific inquiry
C - science and technology affecting society
D - society and technology affecting science
Answer: C - science and technology affecting society
Question: Some coal-burning power plants install “chemical scrubbers”. These scrubbers reduce the amount of sulfur dioxide (SO2) that is released when coal is burned. How does installation of these scrubbers benefit the environment?
A. reduce the amount of acid rain
B. reduce the amount of coal mined
C. increase the amount of atmospheric CO2
D. increase the amount of ground level ozone
Answer: A. reduce the amount of acid rain
Question: The pesticide DDT was at one time referred to as a “miracle” pesticide. Its widespread use in the United States peaked in 1959, but then usage steadily declined until its ban in late 1972. Reasons for declining usage included increased insect resistance and public concern over potentially harmful environmental effects. How did this concern affect the field of agricultural science?
A. It led to the development of equally harmful herbicides.
B. It encouraged farmers to violate the ban and increase the use of DDT.
C. It led to the development of more effective, alternative pesticides.
D. It encouraged farmers to reduce the number of crops grown in their fields.
Answer: C. It led to the development of more effective, alternative pesticides