Which of the following is NOT a characteristic of animals?
A. They have cell walls.
B. They have a developmental stage called a blastula.
C. They are multi-cellular eukaryotes.
D. They are heterotrophs.
E. They secrete and bind to an extracellular matrix.
Ans: A. They have cell walls.
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Answer the following statement true (T) or false (F)
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A) the United States B) England C) China D) Russia
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