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Ninth Grade (Grade 9) Biology Questions

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Grade 9 :: Evolution by JVance
Sperm whales have vestigial hip bones, and a small percentage of sperm whales also have vestigial hind limbs. Which of the following statements best explains the presence of these vestigial structures in sperm whales?
  1. Sperm whales evolved from ancestors that walked on land.
  2. Sperm whales are in the process of evolving into land mammals.
  3. These structures are acquired by each individual sperm whale during its lifetime.
  4. These structures resulted from sperm whales having a long period of embryonic development.
Grade 9 :: DNA, RNA, and Genetics by PMISIAS
The process by which RNA is made from DNA is called
  1. translation
  2. transcription
  3. replication
  4. respiration
Grade 9 :: Taxonomy by JVance
Until recently, the myrtle warbler and the Audubon’s warbler were thought to be separate species of birds because the males have very different appearances. Which of the following observations most likely led to the reclassification of these warblers as one species?
  1. The myrtle warbler and the Audubon’s warbler have the same diet.
  2. The myrtle warbler and the Audubon’s warbler lay the same number of eggs.
  3. The myrtle warbler and the Audubon’s warbler have overlapping geographical ranges.
  4. The myrtle warbler and the Audubon’s warbler interbreed and produce fertile offspring.
Grade 9 :: Taxonomy by JVance
Two groups of organisms are found living on opposite sides of an island. An active volcano prevents each group from traveling to the opposite side of the island. Scientists want to know if these two groups of organisms belong to the same species. Which question should scientists try to answer?
  1. Do the two groups eat the same kinds of food?
  2. Are the two groups active at the same times each day?
  3. Can the two groups interbreed to produce fertile offspring?
  4. Do the two groups use similar anatomical structures for the same purpose?
Grade 9 :: Taxonomy by JVance
Which of the following statements best explains why the chestnut-sided warbler, Dendroica pensylvanica, and the cerulean warbler, Dendroica cerulea, are classified as closely related species?
  1. They eat the same types of insects.
  2. They have similar DNA sequences.
  3. They show similarities in their nesting behaviors.
  4. They live in the same types of woodland habitats.
Grade 9 :: Taxonomy by JVance
Which of the following characteristics is most useful when classifying a eukaryote into a kingdom?
  1. How the organism feeds
  2. How the organism moves
  3. The organism's color and mass
  4. The organism's form and structure
Grade 9 :: Taxonomy by JVance
Which of the following statements is correct about the hierarchy of the taxonomic system currently used to classify organisms?
  1. All organisms of a given order belong to the same species.
  2. Many different classes of organisms belong to the same order.
  3. All organisms of a given phylum belong to the same kingdom.
  4. Many different families of organisms belong to the same genus.
Grade 9 :: Taxonomy by JVance
The 2 domains composed of only unicellular organisms are
  1. Fungi and Bacteria
  2. Archaea and Fungi
  3. Protists and Bacteria
  4. Archaea and Bacteria
Grade 9 :: Taxonomy by JVance
Which of the following organisms are most closely related?
  1. Asterias rubens and Asterias forbesi
  2. Bubulcus ibis and Xenicibis xympithecus
  3. Ophiderma salamandra and Salamandra algira
  4. Ceanothus americanus and Lethocerus americanus
Grade 9 :: Taxonomy by JVance
Grade 9 :: Taxonomy by JVance
Grade 9 :: Taxonomy by JVance
Which of the following is most important in classifying two groups of bears into the same genus?
  1. similar diets
  2. similar genes
  3. similar habitats
  4. similar body size
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