Which of the following characteristics do ostracoderms and lampreys share?

A. Both are extinct.
B. Both have fins.
C. Both are parasitic on other fish.
D. Both are jawless.
E. All the choices provided are correct.


D. Both are jawless.

Biology & Microbiology

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Slow-growing NTM whose colonies are pigmented when grown in the dark or the light are referred to as:

a. scotochromogens. b. photochromogens. c. nonphotochromogens. d. chromogenicums.

Biology & Microbiology

Most skeletal muscles attach to ____

a. other tissues b. bones c. the backbone d. a body opening e. other muscles

Biology & Microbiology

Which of the following taxonomic categories are normally included in the general classification of microorganisms? 

A. Domain Bacteria B. Kingdom Protista C. Domain Archaea D. All of the above are correct.

Biology & Microbiology

The increased levels of estrogen from the maturing follicle cause a decrease in GnRH levels

Indicate whether the statement is true or false

Biology & Microbiology