A male cricket creates sounds that we call "chirps" by rubbing one wing against the other. When is this considered an act of communication?
A. Every time the cricket produces a chirp
regardless of whether the signal is received
by an organism.
B. Every time a member of its own species
hears a chirp regardless of its response to the
signal.
C. Every time a female member of its species
hears a chirp and changes her behavior in
response to the signal.
D. Every time the chirp is heard by some
other organism that changes its behavior in
response to the signal.
D
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Thought question
What will be an ideal response?
Each amino acid has a different side chain, called a(n) ____
a. amino strand b. carboxyl group c. R group d. glucose pentose configuration e. ribosomal attachment
Human height is a trait affected by both genes and the environment. How is this so?
What will be an ideal response?
Which of the following correctly describes the locations of transcription and translation within a eukaryotic cell?
a. Both transcription and translation occur in the cytosol. b. DNA is transcribed in the nucleus, then the mRNA transcript is transported to the nucleosomes to be translated into protein. c. Both transcription and translation occur in the nucleus. d. DNA is transcribed in the cytosol, then the mRNA transcript is transported into the nucleus to be translated into protein. e. DNA is transcribed in the nucleus, then the mRNA transcript is transported to the cytosol to be translated into protein.