Michigan High School Science Meap Test

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Michigan High School Science Meap Test

• Biology Review

STUDY of LIFE
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LE. Biology EvolutionBenchmark 1
Describe what biologists consider to be evidence
for human evolutionary relationships to selected
animal groups.
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(No Transcript)
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Key Concepts
Common types of evidence used hominid
fossils vestigial structures DNA protein
structure
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Real-world contexts
Skeletal comparisons, such as modern human to
hominid fossils Anatomical/biochemical
similarities humans to other higher primates,
such as blood proteins Similarity of early
human embryo stages to those of other
vertebrates Vestigial structures, such as
appendix tail bone
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• The human embryo and the embryos of other animals
  
• with backbones have gill slits. According to
  modern
• evolutionary theory, this best supports the ideas
  that
• fish are our closest relatives
• all embryos breathe through gills
• C. all animals with backbones are related by
  common ancestry
• D. all organisms have gill slits at an early
  stage in their development

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A. fish are our closest relatives Incorrect
the question says animals with backbones. This
would include many animals, not just fish. Our
closest relatives are other primates, such as
chimpanzees.
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B. all embryos breathe through gills Incorrect
at an embryo stage humans get their oxygen from
the mother via the placenta and umbilical cord.
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You Pass with Flying Colors
C. all animals with backbones are related by
common ancestry Correct organisms who share
embryonic traits also share a common ancestor.
Common ancestry is one of the key ideas in
evolutionary theory.
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D. all organisms have gill slits at an early
stage in their development Incorrect the
question says animals with backbones, not all
organisms. (all organisms would include bacteria,
fungi, plants)
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Look at the data table above. It shows the
number of differences in the amino acids that
make up the hemoglobin molecule found in several
species when compared with human hemoglobin.
Using the data table above which species is
most closely related to humans? A. Frog B.
Pig C. Gorilla D. Horse
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You Pass with Flying Colors
The correct answer is C gorilla. The more
closely related two organisms are, the less
differences they will have in their DNA and
therefore their proteins. Since Gorillas have
only one difference and the frog, pig, and horse
have more than that, the human and gorilla are
the closest.
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