2024年12月7日 · insect, (class Insecta or Hexapoda), any member of the largest class of the phylum Arthropoda, which is itself the largest of the animal phyla. Insects have segmented bodies, jointed legs, and external skeletons (exoskeletons).

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.

2019年12月10日 · As you may remember from elementary school, the most basic definition of an insect is an organism with three pairs of legs and three body regions: head, thorax, and abdomen. Entomologists, scientists who study insects, might also add that insects have a pair of antennae and external mouthparts.

2024年5月16日 · What is an insect with examples, classification, characteristics, & body parts. Do they have brains, hearts, lungs, or blood. What do they eat. How do they breathe.

The meaning of INSECT is any of a class (Insecta) of arthropods (such as bugs or bees) with well-defined head, thorax, and abdomen, only three pairs of legs, and typically one or two pairs of wings. How to use insect in a sentence.

Scientists study insects from all over the world, alive and extinct, to understand how insects have changed over time. They examine key features that we learned about today to learn more about these insects and their habitats, behaviors, what they …

2019年10月16日 · Discover the characteristics of insects, their life-cycles, the roles they play in their ecosystems, and why they are so important for life on Earth… What Is An Insect? How Do Insects Breathe? Why Are Insects Important? Click on the image above to download your free quiz sheet! How well do you know insects?