The useful things derived from living things is regarded as

biomaterials.

The useful things derived from living things are regarded as natural resources. Natural resources are materials or substances that occur in nature and can be used by humans for various purposes. These resources can be obtained directly from living organisms, such as plants and animals, or from their byproducts. Some examples of natural resources derived from living things include:

1. Timber: Wood obtained from trees is used for construction, furniture, paper, and many other applications.
2. Medicinal plants: Many plants contain compounds that have medicinal properties and are used to make drugs or traditional medicines.
3. Food crops: Various agricultural products like fruits, vegetables, grains, and livestock provide us with essential nutrients and sustenance.
4. Animal products: Livestock such as cattle, poultry, and fish provide meat, eggs, milk, and other products for human consumption.
5. Silk and wool: Silk is produced by silkworms, and wool is obtained by shearing sheep. Both materials are used to make clothing and textiles.
6. Honey: Bees produce honey, which is used as food and has medicinal properties.
7. Essential oils: Many plants have aromatic compounds that can be extracted as essential oils for use in perfumes, cosmetics, and natural remedies.

These are just a few examples, but there are countless natural resources derived from living things that contribute to human well-being and the economy.