What is considered to be the primary method of succession in the marine intertidal zone?
A. facilitation.
B. submission.
C. logistic growth.
D. facilitated growth.
E. inhibition.
E. inhibition.
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A scientist using systematics relies on which of the following?
Which of the following general transcription factor phosphorylates the C-terminal domain of RNA Pol II?
A. TFIID B. TFIIA C. TFIIH D. TFIIF
When the direct method of measuring mutation rates is used, estimates are made for a specific ____________________ over a number of ____________________
Fill in the blank(s) with correct word
Tube feet of sea stars, erectile tissue of the penis in vertebrates, and the bodies of cnidarians are all supported by ____
a. an exoskeleton b. cardiac muscle c. a hydrostatic skeleton d. an endoskeleton e. joined exo- and endoskeletons