The taxonomic group that contains the most species and seemingly most intelligent invertebrates is
A) Uniramia.
B) Aves.
C) Chordata.
D) Gastropoda.
E) Cephalopoda.
E
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What environmental factor might lead to year-round, rather than seasonal, reproductive activity?
A. a yearly rainy season B. stable food supplies C. changes in day length D. daily ocean tides E. frequent large temperature changes
Modern humans possess the same craving for ________ and ________ as our ancestors, despite the obesity these cravings can cause today
A) fat … sugar B) sugar … salt C) protein … vitamin C D) iron; iodine
It appears that the most important senses involved in human sexual attraction are
A. hearing and touch. B. sight and smell. C. taste and smell. D. touch and smell.
Your research project involves the characterization of a recently identified transcription factor. As part of your project, you want to determine if this transcription factor binds directly to any of the general transcription factors. Unfortunately, you are having trouble expressing the full-length protein. What approach may help achieve your research goal?
A. You must find a way to express the full-length protein, since transcription factor functions do not lie in separate domains. B. Express and purify only the DNA-binding domain, and test for binding. C. Express and purify only the activation domain, and test for binding. D. Identify the RNA that mediates the protein-protein binding.