Spider simple drawing picture
spider (arthropod name) The general name for all species in the phylum Arthropoda, the class Arachnida, the order Araneida or Araneae. Distributed throughout the world except Antarctica. Distributed from sea level to 5,000 meters above sea level, they are all terrestrial. The body length is 1 to 90 mm. The body is divided into two parts: the cephalothorax (anterior body) and the abdomen (posterior body). The cephalothorax is covered with carapace and chest plate. There are two pairs of appendages in the cephalothorax. The first pair is the chelicerae, which has chelicerae and venom gland openings at the tips of the chelicerae. The chelicerae of the Stratopalatine suborder move forward and backward, and the chelicerae of the Stratopalatine suborder move laterally and toward each other; the second pair It is a pedipalp, which is in the shape of a walking foot in female spiders and immature male spiders, used to hold food and serve as sensory organs; but in male adult spiders, the distal segment of the pedipalp is enlarged and becomes a handover device for transmitting sperm. Spiders mostly feed on insects, other spiders, and myriapods, and some spiders also feed on small animals. Jumping spiders have excellent eyesight and can stalk prey within 30 centimeters.
