1. Locust structure?The body of a locust is divided into three parts: head, thorax, and abdomen. Its legs and wings are its flying organs, and it breathes through its trachea. (1) Locusts have three pairs of legs on their chests: forelegs, middle legs, and hind legs. The legs are segmented, and the hind legs are well developed, which are suitable for jumping. In addition, locusts have two pairs of wings. The forewings are leathery, narrow, and have a protective function, while the hind wings are soft and wide, which are suitable for flying. Therefore, the power for locusts to jump and fly comes from the well-developed muscles in their chests. (2) There are two spiracles on the chest and abdomen of locusts, which are small holes arranged in a relatively neat pattern. They are the portals for gases to enter the locust's body and are connected to the trachea in the locust's body. Gas exchange takes place at the trachea. Therefore, the respiratory organ of the locust is the trachea. The locust's body structure is divided into three parts: head, thorax, and abdomen. The locust's head (the head is the locust's sensory and feeding center, with the main structures being antennae, eyes and mouthparts) has a pair of antennae, a pair of compound eyes and a mouthpart. The thorax (the thorax is the center of movement of the locust and is divided into the prothorax, mesothorax and metathorax) has 2 pairs of wings and 3 pairs of legs. The abdomen (the abdomen is the respiratory and reproductive center of the locust and is composed of 11 segments) is soft and can bend. 2. How many eyes does a locust have?Locusts are also known as grasshoppers. Locusts have compound eyes. Locusts have a pair of compound eyes and three simple eyes. The compound eyes of locusts are located on the upper part of the head, one on each side, which are relatively large and composed of many small eyes. The simple eyes of locusts only have the function of sensing light. There is one simple eye between the compound eyes and the antennae of the locusts, and another simple eye is located in the upper center of the front of the head, forming an inverted isosceles triangle with the other two simple eyes. The compound eyes of locusts are the main visual organs of locusts. They are located on the upper part of the head, one on each side, which are relatively large and composed of many small eyes. Yellow bugs have three eyes. There are many types of locusts, with hard mouthparts, narrow and tough forewings, broad and soft hind wings, good at flying, well-developed hind limbs, and good at jumping. They mainly harm grass plants and are pests. The body of a locust is composed of many segments, and the whole body can be divided into three parts: head, thorax, and abdomen. The thorax is divided into three parts: prothorax, mesothorax, and metathorax. The abdomen has a total of 11 segments. Thank you for your answer. 3. What is the difference between pointed-headed locusts and square-headed locusts?Pointed locusts have thin bodies, and the body is narrow at the top and wide at the bottom. They are grass green in color, and bark color is also available, but rarely. Generally speaking, they are pointed in the front and large in the middle and small in the back. The square-headed locust has a big head and body, with a relatively flat back and head. It is sturdy and plump, and looks much stronger than the pointed-headed locust. 4. Why do locusts have strong survival ability based on their morphological structure?Locusts have extremely strong vitality, strong reproductive capacity and strong environmental adaptability. For example, the desert locusts reported this time originated in Africa. They are large in size, up to 6 or 7 centimeters in length, and their food intake is astonishing. An adult locust can eat food equivalent to its own weight every day. According to relevant calculations, if there are 40 million locusts per square kilometer, a locust swarm per square kilometer can eat the food rations of 35,000 people in just one day, which shows how destructive and destructive they are to crops. In addition, locusts can grow in deserts, grasslands, temperate zones, tropical zones and other regions. It can be said that they can be found all over the world. The surface, plants, soil, locusts... an ecological chain. A female locust can lay 300 eggs, and the growth period only takes two months. As long as there is enough rain, locusts can hatch 3-5 generations every year. |
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