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25 Cards in this Set
- Front
- Back
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Which of the following is not a vertebrate?
A. Fish B. Eagles C. Snails D. Frogs |
C. Snails are invertebrates because they have no backbone.
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Insects have
A. 2 body regions and 8 legs B. 3 body regions and 8 legs C. 2 body regions and 6 legs D. 3 body region and 6 legs |
D. Insects have 3 body regions and 6 legs. Arachnids have 2 body regions and 8 legs. Answers A, B, and C do not characterize any living creature.
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Gymnosperms produce
A. fruit B. spores C. seed cones D. protective seed coverings |
C. Gymnosperms produce seeds without protective seed coverings. The seeds are found in seed cones, not fruits.
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The gland that produces insulin is the
A. parathyroid B. thyroid C. pituitary D. pancreas |
D. The pancreas produces insulin and glucagon. The other choices are also endocrine glands that produce other hormones.
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Breads and cereals are important sources of
A. protein B. energy C. vitamins D. minerals |
B. Breads and cereals are principal sources of starches, which provide energy.
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Two brown-eyed parents have a child with blue eyes. Blue eye color is a recessive trait. In terms of eye color, the parents must be genetically
A. both homozygous B. both heterozygous C. mother homozygous, father heterozygous D. mother heterozygous, father homozygous |
B. The trait for brown eyes is dominant. Therefore, a brown-eyed parent may e genetically BB (homozygous) or Bb (heterozygous). A blue-eyed child must be bb, because blue eyes are recessive. Two brown-eyed parents could produce a blue-eyed child only if both parents were Bb (heterozygous)
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Omnivores consume
A. everything B. plants only C. animals only D. both plants and animals |
D. Herbivores eat plants. Carnivores eat animals. Omnivores eat plants and animals.
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Some cells take materials into their structure by engulfing them. This process is called
A. diffusion B. phagocytosis C. respiration D. osmosis |
B. Phagocytosis is the process of engulfing particles to incorporate them in a cell. Engulfing occurs when the cell membrane flows around an object, causing a bubble, or vacuole, or occur in the cytoplasm. The bubble contains the object engulfed.
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One meter equals 100
A. millimeters B. decimeters C. centimeters D. kilometers |
C. 1 meter = 100 cm = 1000 mm = 10 dm = 1/1000 km
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The heat transfer caused when heated liquids or gases rise is called
A. conduction B. convection C. insulation D. radiation |
B. Convection is the correct answer because it is the definition of heat transfer when dealing with heated liquids or gases.
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Consumption of electricity is measured in
A. volts B. amperes C. watts D. ohms |
C. All the answers represent electrical units that are used to measure various aspects of electrical current. Watts measure electrical consumption.
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Magnetic force between two objects decreases as the amount of ______ the objects increases.
A. distance between B. pressure on C. electric charge on D. insulation between |
A. Increasing distance between two objects decreases magnetic force between them. Increasing electrical charge between two objects increases electrostatic force. Answers B and D do not affect magnetic force.
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Light waves have a longer wavelength than
A. microwaves B. radio waves C. radar D. x- rays |
D. All the choices represent electromagnetic waves. X-rays have a shorter wavelength than that of light, while the rest have longer wavelengths.
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Sound waves of a loud sound have a greater ______ than those of quiet sounds.
A. speed B. frequency C. amplitude D. intensity |
C. Differences in sound volume are related to amplitude differences. Sound intensity is related to amplitude and frequency of sound waves. Speed = wavelength x frequency.
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Organic compounds are compounds containing.
A. oxygen B. hydrogen C. carbon D. water |
C. Organic compounds must contain carbon. They may include any other element, including those listed as the other answers.
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A material with definite volume but no definite shape is called a
A. plasma B. gas C. liquid D. solid |
C. All choices represent states of matter. Liquids have a definite volume but no definite shape. Gases and plasmas have no definite volume. Solids have a definite shape.
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An acidic solution will have a pH of
A. 20 B. 10 C. 7 D. 5 |
D. The relative acidity or basicity of a solution is measured by pH. Neutral is indicated by a pH of 7. Acid is shown by a pH less than 7. Base is shown by a pH greater than 7.
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The equation C + O2 --------> CO2 is what type of reaction?
A. Synthesis B. Decomposition C. Displacement D. Double replacement |
A. All the answers represent types of reactions. In a synthesis reaction, new chemicals (e.g. CO2) are synthesized, or made from other smaller chemicals.
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The intensity of an earthquake is measured by a(n)
A. thermograph B. seismograph C. telegraph D. oscilloscope |
B. All the answer choices are machines. The seismograph measures the intensity of an earthqake by measuring and graphing the size of vibrations in the ground.
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Air pressure is measured with a
A. thermometer B. barometer C. hygrometer D. anemometer |
B. All the answer choices are machines used to measure weather: therometer/temperature, barometer/air pressure, hygrometer/humidity, anemometer/wind speed.
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The planet closest to the sun is
A. Earth B. Jupiter C. Mars D. Mercury |
D. The planets that are nearest from the sun to farthest are: Mercury, Venus, Earth, Mars, Jupitar, Saturn, Uranus, Neptune, Pluto, once considered the farthest planet from the sun, was reclassified as a dwarf planet in 2006.
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In a balanced equation for forming water, 2H2 + O2 ------> __________
A. H2O2 B. 2H2O C. 2H2O2 D. H2O |
B. The formula for water is H2O. Since the left side of the equation has 4 hydrogens, 2 water molecules must be placed on the right side of the equation to provide 4 hydrogens there.
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The phylum Chordata includes
A. mammals B. earthworms C. mushrooms D. trees |
A. The phylum chordata includes all animals with backbones. Mammals are one of five classes of Chordates.
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Otters eat fish. Otter are
A. predators B. prey C. herbivores D. decomposers |
A. Predators are animals that eat other living things. Prey are living things that are eaten. Decomposers are organisms that eat dead plants and animals. Herbivores eat plants.
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Decibels are used to measure
A. sound B. frequency C. distance D. speed |
A. Decibels measure the intensity of sound. Sound intensity is related to amplitude and frequency of sound waves.
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