Generally the respiratory system in birds

A. is a one-way circulation of air so constant oxygen absorption can meet the high oxygen demand.
B. resembles the positive pressure system of a frog.
C. is identical to the human breathing system.
D. is merely accelerated by the flight muscles.


Answer: A

Biology & Microbiology

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CCK is a gut peptide thought to be a(n) _________ peptide,

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

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When we watch Olympic athletes perform, we are admiring the expert control of which systems working together?

A. skeletal, endocrine, and circulatory systems B. muscular, integumentary, and circulatory systems C. nervous, circulatory, and skeletal systems D. nervous, muscular, and skeletal systems

Biology & Microbiology

Label the image below to evaluate your understanding of the taxonomy hierarchy from most inclusive at the top to least inclusive at the bottom. Place your cursor on the labels for hints.

What will be an ideal response?

Biology & Microbiology