What is the correct answer?
4
Which of the following statement(s) is/are correct regarding cockroaches ?
- The body of the cockroach is segmented and divisible into three distinct regions head, thorax and abdomen.
- Blood vascular system is of closed type.
- They are monoecious and both sexes have well developed reproductive organs.
- The development of P. americana is paurometabolus, meaning there is development through nymphal stage.