Insects also have an open circulatory system and trachea that delivers oxygen straight to the muscles.
(Insects; have; an open circulatory system and trachea that delivers oxygen straight to the muscles) (an open circulatory system and trachea; delivers; oxygen; straight to the muscles)
Insects an open circulatory system and trachea
have delivers
an open circulatory system and trachea that delivers oxygen straight to the muscles
oxygen straight to the muscles