A fish with a cartilaginous skeleton and paired fins would be:
a. an Actinopterygian.
b. a Crinoid.
c. a Cephalochordate.
d. a Urochordate.
e. a Chondrichthyean
E
You might also like to view...
Local and state authorities can set standards for recreational water that are above or below the guidelines set by the United States government
Indicate whether the statement is true or false.
Organisms that obtain heat primarily from internal physiological sources are called
a. endotherms. b. isotherms. c. exotherms. d. ectotherms. e. allotherms.
The secondary stage of syphilis
A. is a time when the pathogen enters and multiplies in the blood. B. is when gummas develop in tissues. C. is when the patient is no longer infectious to others. D. occurs within 10 days of the primary stage. E. has no symptoms.
The Montreal Protocol:a
has not yet resulted in measurable decreases in the quantity of global warming chemicals. b. has not yet been ratified by the U.S. Senate. c. banned global use of CFCs by 1998. d. was signed by all 50 states. e. stipulated a 50% reduction in CFCs.