What are the 7 main characteristics of insects pdf?
GENERAL CHARACTERISTICS OF CLASS INSECTA:- 1 Body divided in to head, thorax and abdomen 2. Possess three pairs of legs, hence the name Hexapoda 3. Presence of one or two pairs of wings 4. A pair of antennae 5. Insects (from Latin insectum) are hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs of jointed legs, compound eyes, and a pair of antennae.Insects are characterized by having three pairs of jointed legs from other arthropods; an abdomen that is divided into 11 segments and lacks any legs or wings; and a body split into three sections with one pair of antennae on the head (head, thorax, and abdomen). Sometimes, insects also have one or two wing pairs.
What 4 characteristics set insects apart from the other arthropods?
In addition to the original flight function of wings, insect wings have multiple physiological functions, including temperature regulation, physical protection, and visual signaling, and exhibit diverse sizes, shapes, color patterns, and other structural traits.
What are the six characteristics of an insect?
The class Insecta refers to organisms with three pairs of legs, external mouthparts, three body regions of head, thorax and abdomen, and one pair of antennae (Figure 1). Several other types of arthropods commonly confused with insects are spiders, ticks and mites. Six legs, three body parts (HEAD, THORAX, and ABDOMEN), a hard EXOSKELETON, and compound eyes characterize insects. Most insects have a pair of antennae and two pairs of wings. Insects grow by MOLTING, shedding their old exoskeleton, and growing a new, roomier one.Characteristics of Insects Insects have jointed appendages as arthropods (arthropod means jointed foot), an exoskeleton (hard, external cover), segmented body, ventral nervous system, digestive system, open circulatory system, and advanced sensory receptors.Insects have three main body segments: the head, thorax and abdomen. They have six legs, one or two pairs of wings and specialized mouth parts. Insects have nervous and digestive systems, as well as an exoskeleton, a hard skeleton on the outside of their body.In the adult stage, an insect has three pairs of legs (total = 6) and three distinct body parts. An insect also normally has a pair of antennae, two pairs of wings, and eyes and mouthparts adapted especially for its specific lifestyle.All arthropods share three key characteristics: segmented bodies, jointed appendages, and an exoskeleton. These features are crucial for their movement, protection, and overall biology.
What are the special characters of insects?
Six legs, three body parts (HEAD, THORAX, and ABDOMEN), a hard EXOSKELETON, and compound eyes characterize insects. Most insects have a pair of antennae and two pairs of wings. The wings may be membranous, parchment-like, heavily sclerotized, fringed with long hairs, or covered with scales. Most insects have two pairs of wings — one pair on the mesothorax and one pair on the metathorax (never on the prothorax).
What are the characteristics of an insect for kids?
Thinking Scientifically: To be a true insect, a creature must have a head, thorax, and abdomen, six legs, two antennae and an exoskeleton. Anything that does not have at least those characteristics is not an insect. Over one million species of insects have been discovered and described but it is estimated that there may be as many as 10 million species on earth. There are approximately 1. Earth. The total weight of all the insects is about 70 times more than all the people.