BIOL 1108 Lab Week 2: Evolution and Classification || Graded A+.
Evolution correct answers Changes in the genetic makeup of a population over time.
Macroevolution correct answers Evolutionary changes above species level.
Extinction correct answers A term that typically describes a species that no longer has any known
living individuals.
What are the best fossils? correct answers In sedimentary rock and most are marine organisms.
What organisms preserve best in fossils? correct answers Organisms with a durable aspect
(bones, shell, scales, leaves, etc)
Seven Lines of Evidence for Macroevolution correct answers Fossil, developmental similarity,
molecular sequence data, structural homology, vestigial structures, convergent evolution, and
patterns of distribution.
Structural Homology correct answers Example: Forelimbs of vertebrates
Homology correct answers The existence of shared ancestry between a pair of structures, or
genes, in different taxa
Developmental Similarity correct answers Example: No difference between embryo of
human/chicken
Molecular Sequence Data correct answers Example: Two organisms sharing genetic information.
, Vestigial Structure correct answers Example: Arrector pili muscle raising hair. It is useless in
humans but not in cats and dogs.
Vestige correct answers a part or organ of an organism that has become reduced or functionless
in the course of evolution.
Convergent Evolution correct answers The cactus and the euphorb respond to ecological
problems the same but not related.
Fossil Record correct answers It is sorta biased because a bony structure preserves better than
something else like a worm. Also biased because some places preserve better like the ocean or
Antartica than the rainforest.
How old is Earth? correct answers Earth is 4.6 billion years old.
Why do we start counting 3.8 billion years ago? correct answers The earliest fossil dates back to
3.8 billion years ago.
Eras in order from oldest to newest correct answers Hadean, Archaean, Proterozoic, Paleozoic,
Mesozoic, and Cenozoic.
Eras in order from newest to oldest correct answers Cenozoic, Mesozoic, Paleozoic, Proterozoic,
Archaean, and Hadean.
Fossil Preservation Types correct answers Amber, Petrification, Compression Fossil, and
Impression Fossil
Amber correct answers You can get DNA tissue from it. It is the preservation of fossils within
fossilized plant sap (amber). This is the popular name for fossilized resin of botanical origin. The
proper scientific terminology is fossil resin.
Evolution correct answers Changes in the genetic makeup of a population over time.
Macroevolution correct answers Evolutionary changes above species level.
Extinction correct answers A term that typically describes a species that no longer has any known
living individuals.
What are the best fossils? correct answers In sedimentary rock and most are marine organisms.
What organisms preserve best in fossils? correct answers Organisms with a durable aspect
(bones, shell, scales, leaves, etc)
Seven Lines of Evidence for Macroevolution correct answers Fossil, developmental similarity,
molecular sequence data, structural homology, vestigial structures, convergent evolution, and
patterns of distribution.
Structural Homology correct answers Example: Forelimbs of vertebrates
Homology correct answers The existence of shared ancestry between a pair of structures, or
genes, in different taxa
Developmental Similarity correct answers Example: No difference between embryo of
human/chicken
Molecular Sequence Data correct answers Example: Two organisms sharing genetic information.
, Vestigial Structure correct answers Example: Arrector pili muscle raising hair. It is useless in
humans but not in cats and dogs.
Vestige correct answers a part or organ of an organism that has become reduced or functionless
in the course of evolution.
Convergent Evolution correct answers The cactus and the euphorb respond to ecological
problems the same but not related.
Fossil Record correct answers It is sorta biased because a bony structure preserves better than
something else like a worm. Also biased because some places preserve better like the ocean or
Antartica than the rainforest.
How old is Earth? correct answers Earth is 4.6 billion years old.
Why do we start counting 3.8 billion years ago? correct answers The earliest fossil dates back to
3.8 billion years ago.
Eras in order from oldest to newest correct answers Hadean, Archaean, Proterozoic, Paleozoic,
Mesozoic, and Cenozoic.
Eras in order from newest to oldest correct answers Cenozoic, Mesozoic, Paleozoic, Proterozoic,
Archaean, and Hadean.
Fossil Preservation Types correct answers Amber, Petrification, Compression Fossil, and
Impression Fossil
Amber correct answers You can get DNA tissue from it. It is the preservation of fossils within
fossilized plant sap (amber). This is the popular name for fossilized resin of botanical origin. The
proper scientific terminology is fossil resin.
