Fish that retain their notochord

A) agnatha
B) osteichthyes
C) chondrichthyes
D) crazyrivermonsterman


Ans: A) agnatha

Biology & Microbiology

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The equation C6H12O6 + 6O2 6CO2 + 6H2O represents the process of ____

Fill in the blank with the appropriate word.

Biology & Microbiology

The E test is ________.

A. a rapid serological test used to detect the presence of eastern equine encephalitis virus in cerebrospinal fluid B. used to quantify levels of IgE antibody in serum samples C. a quantitative antibiotic sensitivity test that utilizes plastic strips impregnated with an antibiotic of interest D. used to measure esculine levels in pasteurized milk

Biology & Microbiology

In former times, surgeons used small doses of curare to relax the patient's abdominal and other muscles during operations. Why did this compound work? What additional precautions do you think the medical staff needs to put into place when a patient is

under anesthesia? What will be an ideal response?

Biology & Microbiology

Rotational and gravitational equilibrium both involve all of the following except

A. hair cells. B. a gelatinous substance within a chamber. C. the vestibular nerve. D. calcium carbonate granules. E. stereocilia.

Biology & Microbiology