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Tenth Grade (Grade 10) Science Questions

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Grade 10 :: Evolution by Drv00d00
During a study session about evolution, one of your fellow students remarks, "The giraffe stretched
its neck while reaching for higher leaves; its offspring inherited longer necks as a result." Which
statement is most likely to be helpful in correcting this student's misconception?
  1. Characteristics acquired during an organism's life are generally not passed on through genes.
  2. Spontaneous mutations can result in the appearance of new traits.
  3. Only favorable adaptations have survival value
  4. Disuse of an organ may lead to its eventual disappearance.
  5. If the giraffes did not have to compete with each other, longer necks would not have been passed on to the next generation.
Grade 10 :: Evolution by MarcBeinder
The papaya mealybug is a pest that poses a threat to many tropical plants. Which fate of the mealybug would result from the inability of the species to reproduce?
HINT : EVOLUTION
  1. The species would mutate
  2. The species would increase
  3. The species would become extinct
  4. The species would continue to thrive
Grade 10 :: Evolution by MarcBeinder
A population of salamanders that live in a river require clear, fresh water to survive. A flood causes tons of sediment to be suspended in the river. Which of these MOST LIKELY will happen to the salamander population?
HINT : EVOLUTION
  1. the salamanders will adapt to life on land
  2. the salamanders will move to another river
  3. the salamanders will adapt to living in the muddy water
  4. the salamanders will decrease in number because of the water quality
Grade 10 :: Periodic Table and Elements by Qalam
Grade 10 :: Ecology by der1228
Grade 10 :: Bonds and Mixing by teachchemistry
Given the equation below:
HCl + energy [math]rarr[/math] H + Cl
How can this equation be described?
  1. This reaction is endothermic, and the heat is released
  2. This reaction is exothermic, and the heat is released
  3. This reaction is exothermic, and the heat is absorbed
  4. The reaction is endothermic, and the heat is absorbed
Grade 10 :: Properties of Matter by radiance
Grade 10 :: Zoology by HomeSchooler1001
Grade 10 :: Forces and Motion by medicaljedi
A kid drives 4 miles to the mall. If the speed limit is 45 miles/hr and the kid makes the trip in .03 hours. Is the kid breaking the speed limit?
  1. No, he is going 1 mile/hr.
  2. Yes, he is going 133 miles/hr.
  3. No, he is going 40 miles/hr.
  4. Yes, he is going 150 miles/hr.
Grade 10 :: Periodic Table and Elements by Qalam
Sodium, mercury, argon, and neon are used in the production of lamps. There are fewer
safety guidelines regarding the handling of neon and argon than for mercury and sodium.
Which of the following best describes the elements within the group of the periodic table that contains neon and argon gas?
  1. Gaseous at room temperature and highly reactive with metals
  2. Solid at room temperature and mildly reactive with strong acids
  3. Gaseous at room temperature and mostly unreactive with metals
  4. Solid at room temperature and mostly unreactive with strong acids
Grade 10 :: DNA, RNA, and Genetics by PMISIAS
Polygenic traits are
  1. controlled by two or more genes
  2. controlled by one gene
  3. controlled by polygons
  4. controlled by at least 3 genes
Grade 10 :: DNA, RNA, and Genetics by edukingdom
The molecule shown in the diagram shows what kind of structure?
DNA
  1. multi-strand
  2. ladder
  3. double helix
  4. double vertex
Grade 10 :: DNA, RNA, and Genetics by MarcBeinder
What is the role of hydrogen bonds in the structure if DNA?
  1. to code for proteins
  2. to synthesize proteins
  3. to separate the strands
  4. to connect the base pairs
Grade 10 :: Matter by Ms_VThomas
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