Vertebrates such as ____ have both exo- and endoskeletons.
A) birds
B) humans
C) turtles
D) lobsters
E) fish
Correct Answer:
Verified
Q19: In skeletal muscle contraction, _ directly fuels
Q20: In skeletal muscle contraction, the neurotransmitter _
Q21: Exercising a muscle results in _.
A) the
Q22: The main role of myoglobin in muscle
Q23: Myoglobin content is high in _.
A) fast
Q25: The mechanism of muscle contraction was first
Q26: A defect in the transport of _
Q27: The frozen contraction of muscle cells called
Q28: Tube feet of sea stars, erectile tissue
Q29: The bodies of arthropods are supported mainly
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