How ants lay eggs

BioTOP 2, textbook

English Corner Ants live in a large group called a colony. A colony can be found in the ground or in wood. Ants are quite strong for their size: They can carry up to 50 times their own weight. Translate! ants: colony: ground: B 6 Stock ants trick the "homecomers". B 7 Eggs, larvae and pupae of the ants Dolls eggs larvae queen (wings stiffened) Male worker B 5 The ant colony 69 arthropods Summary Ants are insects. They are colonizing hymenoptera. They build large anthills in the woods, in which they survive the winter in a frozen state. An ant colony includes several queens, many workers and winged, short-lived males. Ants go through a complete transformation. Workers are sterile females. Up to 2 million workers can live in one building. They do not have wings and do all the work. Workers can carry loads that are up to 50 times heavier than themselves. They also look after their descendants and protect the building. Ants produce a food pulp that is passed on from ant to ant and given to hungry "stick ants". These stick ants take care of the brood and the protection of the burrow in the ant burrow. With their feelers they tease the returnees and ask for food ( B 6). Larger females, the queens, also live in the burrow. The queens lay the eggs and wear wings at the time of the wedding flight. Winged males can also be seen in summer. During the wedding flight, the queens are mated by the males. After that, the males die and the queens shed their wings. How do ants multiply? In the case of ants, only the queens lay eggs. After the wedding flight, the queens return home to their den or found their own ant colony. The sperm ingested during the wedding flight are stored in the queen's body. Each queen only goes on a wedding flight once in her life, so the sperm supply must be sufficient for the rest of her life to fertilize eggs. In the burrow the queens shed their wings and start laying eggs. Workers keep the eggs clean and prevent them from drying out by moving them to other chambers ( B 7). The workers develop from the fertilized eggs that are laid in summer. The queens develop from fertilized eggs laid in spring. The males develop from eggs which are also laid in spring but are not fertilized. Ants go through a complete transformation. After about two weeks, white, legless and headless larvae hatch from the eggs. The larvae grow very quickly and after several moults they pupate. These cocoons are wrongly called "ant eggs". In the case of the red wood ant, pupal rest takes about two weeks. The young ants then hatch as fully grown animals. They no longer shed their skin. For the time being, they will be looked after by the workers, as their exoskeleton made of chitin is still soft. For S S testing purposes only e e - Property of S S Verlag öbv

Made with FlippingBook

RkJQdWJsaXNoZXIy ODE3MDE =