Which parts of the respiratory system divide into smaller and smaller tubes in a pattern that resembles the branches of a tree? A)pharynx
B)trachea
C)bronchi
D)epiglottis

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After getting the slide and microscope ready, stella is eager to see the microscopic pond water specimen! she crouches around her microscope and aligns her eye with the microscope’s eyepiece. but she's only able to see a bright white light. at this point, no specimens or cells are visible on stella's pond water slide. after taking a moment to collect her thoughts, stella realizes she can't see any lifeforms because .

This is a type pf behavior that animals are born with and them to survive