Food is prevented from entering the trachea by the
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White blood cells fight infection by
White blood cells fight infection by
The small intestines receive
The small intestines receive
The four defining characteristics of chordates are
The four defining characteristics of chordates are
Which of the following features were required for the the ev…
Which of the following features were required for the the evolution of the amphibians?
Food is prevented from entering the trachea by the
Food is prevented from entering the trachea by the
Match the cavities with the correct letter in the diagram be…
Match the cavities with the correct letter in the diagram below.
Which feature is found in the bony fish but not in the carti…
Which feature is found in the bony fish but not in the cartilaginous fish?
The liver functions in digestion by
The liver functions in digestion by
The four defining characteristics of chordates are
The four defining characteristics of chordates are