Answer:
a) Arthropoda
b) the exoskeleton of the head of cockroach made known as epicranium . It consists of sex chitinous plates or sclerites.
The addition of calcium carbonate to chitin makes it tough.
c) bilateral symmetry
Explanation:
hope it helps you
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Answers & Comments
Answer:
a) Arthropoda
b) the exoskeleton of the head of cockroach made known as epicranium . It consists of sex chitinous plates or sclerites.
The addition of calcium carbonate to chitin makes it tough.
c) bilateral symmetry
Explanation:
hope it helps you