The trigger for a fixed action pattern is called the ____
Fill in the blank with the appropriate word.
key stimulus
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What is the correct order of elements that comprise a functional protein encoding gene in a prokaryote?
A. Promoter, regulatory region, transcribed region, terminator B. Regulatory region, promoter, transcribed region, terminator C. Regulatory region, promoter, terminator, transcribed region D. Promoter, transcribed region, regulatory region, terminator
A transgenic crop is created by _____
a. artificial selection b. selective breeding c. transfer of a genetic trait from a different species into the plant's cells d. culturing adult stem cells e. cutting DNA with restriction enzymes and separating the DNA fragments by size
A scientist is studying the lysogenic cycle of the lambda 1 phage of Escherichia coli. This means that she is investigating
A. the integration and stabilizing of the lambda 1 phase into a host cell's genome. B. the integration of the bacteria's genome with the viral genome outside of the bacteria's cell wall. C. the integration of the viral genome into the ribosomes present in the bacteria to direct protein synthesis for the capsid formation. D. the integration and stabilizing of a virus into its capsid, which provides protection until conditions are better for reproduction.
Which of the following processes act to "tighten" the nutrient spiraling in streams?
A) faster flow B) shredder invertebrates C) collector invertebrates D) higher stream gradient