____ are sea stars that have greatly affected coral reefs in the past by their feeding habits
a. Crown of thorns
b. Purple sea urchin
c. Red sea urchin
d. Serpent stars
e. Sea lilies
A
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Which of the following are examples of macroevolution?
A. Mass extinctions that wipe 50% or more of living species B. The evolution of novel biological features C. The creation of new species D. All of the above are examples of macroevolution
__________ is a diagnostic tool that reveals missing or extra chromosomes and some structural
changes in an individual's chromosomes. Fill in the blank(s) with the appropriate word(s).
In a food chain, primary consumers occupy the first trophic level
____________________ Indicate whether the statement is true or false.
Influx of ________ ions initiates neurotransmitter release into the synaptic cleft by the process of ________
Fill in the blank with correct word.