Question

Compare and contrast insects and acarines. How are they similar? How are they different?

Answer 1

Insects

• Three body segments (head, thorax, abdomen)
• Six legs, three pairs
• Two compound eyes
• Two antennae
• One or two pair(s) of wings
• Possess mandibles
• Colorless blood
• Trachea respiration
• Feed on both plants and animals
• Complete metamorphosis

Arachnids

• Two body segments (cephalothorax, abdomen)
• Eight legs four pairs
• Eight simple eyes
• Sense through cuticles
• Pincers of fangs
• Wingless
• Have chelicerae
• Blue blood
• Trachea/Book lungs
• Mainly predators
• Incomplete metamorphosis

Answer 2

Step-by-step explanation:

Insects have three body segments — a head, a thorax and an abdomen — while arachnids have just two body parts — a cephalothorax and an abdomen, the National Park Service reports. And while insects have six legs arranged in three pairs, arachnids have eight legs arranged in four pairs.