Question

1What are seashells? 2Where do molluske have their skeletohs? 3How do crabs use shells? 4What do people create from shells? 5What do people keep in shells? ​

Answer 1

Ответ:

1 Что такое ракушки? 2Где у моллюсков скелеты? 3 Как крабы используют раковины? 4 Что люди создают из ракушек? 5 Что хранят в ракушках? Взаимодействие с другими людьми

Answer 2

1. Seashells are the protective outer coverings or exoskeletons of certain marine animals, primarily mollusks. They are usually hard and composed mainly of calcium carbonate, though the exact composition can vary depending on the species.

2. Mollusks have their skeletons, or shells, on the outside of their bodies. The shell is secreted by a specialized tissue called the mantle, which is a thin layer of skin-like tissue that covers the mollusk's body. The mantle secretes calcium carbonate or other minerals, forming the shell as the mollusk grows.

3. Crabs, which are crustaceans and not mollusks, use shells primarily for protection. The majority of crabs have a soft abdomen, so they seek out empty seashells or other suitable objects on the ocean floor to use as a shelter. The crab will back itself into the shell, aligning its body with the shape of the shell and using its strong claws to hold onto the edges. This provides the crab with protection from predators and helps it blend into its surroundings.

4. People create various crafts and decorative items from seashells. Some common examples include shell jewelry, such as necklaces, bracelets, and earrings. Seashells can also be used in artwork, such as mosaics or sculptures. Additionally, shells are often collected for display or used in crafts like wind chimes, picture frames, or even as embellishments in home decor.

5. People keep a variety of items in shells, depending on their size, shape, and functionality. Small seashells can be used as containers for storing small objects like jewelry, keys, or even spices in the kitchen. Larger shells, such as conch shells, have been traditionally used as musical instruments. By blowing into the shell's opening, it produces a sound similar to a horn or trumpet. However, it's important to note that shells should be sourced responsibly, as some species are protected and harvesting them may be illegal or harmful to the environment.