Lesson 4

1. A small oval object with a thin shell produced by a female and containing a young bird, fish and insect.
3. the process of fertilizing a plant or egg.
9. Any animal with no backbone, for example a worm.
10. The process of spreading something over a wide area.
14. To give somebody or something a particular name.
16. The process of pollen entering or being put into a flower or plant so that it produces seeds.
18. To own, hold or possess something
19. To make sure that somebody or something is not harmed, injured, damaged, etc.
20. The long, thin part of a flower that carries the stigma.

2. When the seed of a plant starts to grow.
4. To make somebody or something part of something.
5. To grow or make something as part of a natural process
6. Air that moves quickly as a result of natural forces.
7. Any animal with a backbone, including all mammals, birds, fish, reptiles and amphibians.
8. Producing live babies from its body.
11. The part in the middle of a flower where pollen is received.
12. Producing eggs.
13. The structure of bones that supports the body of a person or an animal.
15. The small hard part produced by a plant, from which a new plant can grow.
17. The hard outer part of eggs, nuts, some seeds, and some animals.