Biology - HOT Science Lab

Teacher
changes as phyletic speciation.)
e. Define the following terms:
1. morphology (the form and structure of an organism considered as a
whole.)
2. fossil (A remnant or trace of an organism of a past geologic age, such
as a skeleton or leaf imprint, embedded and preserved in the earth's
crust)
3. phylogenetic tree (diagram that depicts the lines of evolutionary
descent of different species, organisms, or genes from a common
ancestor)
f. Examine the fossil that was unearthed in a museum, apparently the labels
and other information were lost. Using your fossil record, determine the
time period this fossil is likely from.
(Middle Montanian)
g. Of the two major species that arose from the parent species, which was
more successful How do you know (The species with more body
segments because there were more occurrences of this body plan in the
fossil record)
h. For each of the "blanks" on your fossil record make a sketch of what the
animal would look like. Draw these on your fossil record. (Answers will
vary)
Biology HSL Page 68
Curriculum and Instruction