The lineage ____ shared several derived traits with early tetrapods, such as the shapes and positions of
bones in their appendages, and apparently gave rise to the tetrapods.
a. acanthodians
b. conodonts
c. osteolepiforms
d. placoderms
e. ostracoderms
C
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Reconstructing evolutionary relationships helps in differentiating between primitive and derived characteristics
Indicate whether the statement is true or false.
The ____ has a digestive tract
a. coral b. earthworm c. flatworm d. hydra e. sea anemone
Laboratory simulations provide indirect evidence
that organic compounds such as __________ and __________ self-assemble spontaneously under conditions like those thought to have prevailed on the early Earth. Fill in the blank(s) with the appropriate word(s).
Both plants & animals need mitochondria to
a. produce ATP b. produce lipids c. breakdown protein d. produce glucose