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Tenth Grade (Grade 10) Biology 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
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?
  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 :: 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?
  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 :: Biology by styspeck
The metamorphosis of a caterpillar to a butterfly is an example of which life characteristic?
  1. Reproduction
  2. Development
  3. Response
  4. Control
  5. Evolution
  6. Organization
Grade 10 :: Biology by styspeck
Reproduction is an important life characteristic because all living things
  1. replace themselves as a species
  2. show structure
  3. grow
  4. adjust to surroundings
Grade 10 :: Ecology by der1228
Grade 10 :: Zoology by HomeSchooler1001
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?
  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 :: Cell Structure and Function by DSnamor
What type of cell undergoes binary fission as its type of cell division?
  1. a prokaryotic cell
  2. a plant cell
  3. an animal cell
  4. an eukaryotic cell
Grade 10 :: Evolution by PMISIAS
How can temporal isolation lead to speciation?
  1. If two populations do not like each other, this may lead to the formation of a separate species
  2. If two populations reproduce in different ways, this may lead them to become separate species
  3. If two populations are separated by a geographic barrier, this will cause them to reproduce with other members of their own species which may them to become separate species
  4. If two populations reproduce at different times, they are unlikely to reproduce with each other which may cause them to become separate species
Grade 10 :: Cell Structure and Function by sackjd
Which organelle is the site of protein synthesis?
  1. the nucleus
  2. the nucleolus
  3. the ribosomes
  4. the endoplasmic reticulum
Grade 10 :: Cell Structure and Function by sackjd
Which organelle is considered the "brain" of the cell?
  1. the nucleus
  2. the ribosomes
  3. the Golgi bodies
  4. the lysosomes
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