1. Topic: Reproduction Aim: Describe the structure of a seed and the requirements for a plant to germinate. Do Now: 1. Copy the topic, aim and HW. 2. Start the Metamorphosis ISA HW: Finish the Metamorphosis ISA Castle Learning – Reproduction due Tuesday, April 19 th Earth Day Poster Due Friday!!!

2. 1 2 3 4 5 A B C Fertilization Zygote Cleavage Blastula Gastrula

3. 1.What does the pollen stick to? 2.What structures brings pollen to the eggs? 3.What will the ovary and the ovules eventually develop into?

4. Seeds structure

5. Seed coat: protects embryo

6. Cotyledon: food for embryo

7. Germination Early growth stage of plant embryo

10. Factors affecting germination Temperature Water Oxygen https://www.youtube.com/watch?v=WIs1YYI9UDI

11. Identify each seed structure below. Embryo A A B B C C

12. Let’s summarize… 1.What happens when a seed germinates? It grows and develops into a seed. 2. Identify the three parts of a seed. Seed coat, embryo, cotyledon 3. Identify the source of food for the embryo. Cotyledon 4. Identify the factors necessary for germination to occur. Temperature, oxygen, water