A ________ group does not contain the most recent common ancestor.

Fill in the blank(s) with the appropriate word(s).


polyphyletic

Biology & Microbiology

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Living members of the lineage ____ are the ray-finned fishes, with fins supported by thin and flexible bony rays. This lineage includes over 95 percent of the living species of fishes.

a. Petromyzontoidea b. Chondrichthyes c. Actinopterygii d. Myxinoidea e. Sarcopterygii

Biology & Microbiology

The small air sacs of the lungs are the

A. alveoli. B. bronchioles. C. arterioles. D. spiracles. E. uvula.

Biology & Microbiology

Root-associated microbes

What will be an ideal response?

Biology & Microbiology

All mammals rely on intestinal bacteria to synthesize

A. bile. B. vitamin D. C. some amino acids. D. vitamin K. E. calcium.

Biology & Microbiology