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LAC = inducible repressor
TRP = repressive
Answer: C.
Explanation:
Out of all of the answer choices, answer C most properly describes the cell cycle.
Answer:
a. Produces antibodies in response to antigen exposure in the brain tissue
b. Found in the ventricles of the heart brain
c. Produces by te choriod plexus
d. Blocks blood toxins from brain tissue
e. Prevents concussions.
Explanation:
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The geologic features that help scientists to determine the relative ages of rocks by their positions include index fossils, intrusions, and cross-cutting relationships (Option d).
<h3>What does geological age mean?</h3>
The expression geological age refers to the relative age of a given rock and or fossil (i.e. a piece or trace of dead organism) in a geological time scale.
In conclusion, the geologic features that help scientists to determine the relative ages of rocks by their positions include index fossils, intrusions, and cross-cutting relationships (Option d).
Learn more about geological age here:
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