natural world C1 OIF

2. The sharp, curved nails on the feet of some animals, used for gripping, digging, or attacking.
5. To make a shallow cut or mark on a surface, often with sharp nails or claws.
6. To forcefully expel saliva or other substances from the mouth.
7. The flat appendages on the bodies of fish and some aquatic animals, used for swimming and balance.
8. The act of using teeth to cut into or grip something.
9. To strike something with the foot or hoof.
11. An organization or activity that aims to help those in need, often through donations or volunteer work.
13. The thick hair covering the bodies of some animals, providing warmth and protection.
15. The natural world, including the air, water, and land in which people, animals, and plants live.
16. The feet of an animal, particularly those with claws and pads, like cats or dogs.

1. The elongated rear part of an animal's body, used for balance, communication, or other functions.
3. A group of living organisms that can interbreed and produce fertile offspring.
4. The state of being kept in a confined space, often for animals in zoos or as pets.
5. A sharp, often painful sensation caused by an insect or plant that injects venom or irritants.
8. The hard, pointed part of a bird's mouth used for eating, pecking, and grooming.
10. Deliberate infliction of pain or suffering on others, often for personal gain or pleasure.
12. Hard, pointed growths on the heads of some animals, like goats or deer, used for defense or combat.
14. The flat structures on the bodies of birds, insects, and some animals that allow them to fly.