Lampreys are fish that possess both lungs and gills.
a. true
b. false
Answer: b. false
You might also like to view...
House finches were found only in western North America until 1939, when a few individuals were released in New York City. These individuals established a breeding population and gradually expanded their range
The western population also expanded its range somewhat eastward, and the two populations have recently come in contact. If the two forms were unable to interbreed when their expanding ranges met, it would be an example of _____. A) prezygotic isolation B) reinforcement C) autopolyploidy D) allopatric speciation E) sympatric speciation
Cyanobacteria are ____
a. chemoautotrophs only b. chemoheterotrophs c. photoautotrophs d. photoheterotrophs only e. chemoautotrophs and photoheterotrophs
A toothed, biting structure found in the mouths of sea urchins that is used for rasping algae is called:
a. a tube foot. b. Aristotle's lantern. c. a pedicellaria. d. an ambulacral groove. e. a dermal denticle.
Enzymes that are always present, regardless of the amount of substrate, are ________.
A. regulated enzymes B. endoenzymes C. exoenzymes D. constitutive enzymes E. apoenzymes