Some animals allow their body temperature to conform to the environment. What is the old term for these animals, and what is the newer preferred term?
A. heterotherms; homeotherms
B. homeotherms; endotherms
C. isotherms; poikilotherms
D. poikilotherms; ectotherms
E. endotherms; homeostats
D. poikilotherms; ectotherms
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Hydrolytic enzymes function in the
A) initial degradation of nutrients. B) transport of substrates within the cell. C) chemotactic response, particularly in gram-negative Bacteria. D) regeneration of the periplasm.
Which trait is an example of a qualitative trait in humans?
A) height B) skin color C) Huntington's disease D) intelligence
Genetically modified (GM) salmon have now been approved for sale in the United States. What environmental concern has been expressed about these salmon? What is being considered to reduce this risk?
What will be an ideal response?
Which of the following groups represents the basal lineage(s) of vertebrates?
a. Lancelets b. Tunicates c. Hagfish and lampreys d. Sharks and rays e. Coelacanths