Question

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4.1 are the grass - hoppers antennae biramous? are any of its appendages biramous?
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4.2 how many major body regions do insects have?
4.3 how many pairs of walking appendages do insects have?
4.4 what other appendages are present for locomotion?
4.5 is your grasshopper male or female? how do you know?
4.6 why do the spiracles of the respiratory tract open to the outside of the body?
272 exploring zoology: a laboratory guide

Explanation:

4.1 Grasshopper antennae are uniramous. Some of their appendages like the maxillae are biramous.
4.2 Insects have 3 major body - head, thorax, and abdomen.
4.3 Insects have 3 pairs of walking appendages (legs).
4.4 Wings are other appendages for locomotion in insects.
4.5 Females have a larger, more prominent ovipositor for laying eggs. Males have claspers.
4.6 Spiracles open to the outside to allow for gas exchange (oxygen in, carbon - dioxide out) for respiration.

Answer:

4.1 No, some are.
4.2 3
4.3 3 pairs
4.4 Wings
4.5 Determine by presence of ovipositor (female) or claspers (male).
4.6 For gas exchange.