How might a species' range be extended?
A) through increased migration rates
B) through increased immigration rates
C) through climate change
D) through decreased reproductive rates
C
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Which of the following statements is false?
1.We are in the midst of a slowly increasing trend towards species extinction. 2.Most of the causes of the current species extinction are natural causes. 3.Dodos most likely became extinct because of destruction by animals other than humans. 4.The origins of our current extinction event began tens of thousands of years ago.
The "BCM theory" hypothesizes that LTP is the result of presynaptic activation and (A)_________, whereas LTD is the result of presynaptic activation and (B)_______.
a. (A) weak postsynaptic activity, (B) strong postsynaptic activity b. (A) strong postsynaptic activity, (B) no postsynaptic activity c. (A) no postsynaptic activity, (B) weak postsynaptic activity d. (A) strong postsynaptic activity, (B) weak postsynaptic activity
where the fetus grows
What will be an ideal response?
Which of the following statement is TRUE about transcription?
a. Transcription in prokaryotes does not differ from transcription in eukaryotes. b. Prokaryotes carry out transcription in the cytosol, whereas eukaryotes carry out transcription in the nucleus. c. Eukaryotes use RNA polymerase and prokaryotes do not. d. Prokaryotes synthesize double stranded RNA and eukaryotes do not. e. Eukaryotes synthesize double stranded RNA and prokaryotes do not.