Answer:
1. light-sensitive structure : Eyespot
2. groove in the outer covering of dinoflagellates : Brown algae sulcom
3. Phytophthera infestans : Late blight
4. multinucleated feeding phase plasmodial : Plasmodium
5. rapid growth of : Light algal bloom
6. giant brown algae : Kelp
7. gelatin-like derivative of : Algin
8. result of reproduction inside a Volvox colony : Colonies
9. structure of an alga phototaxis : Thallus
10. response to : Phototaxis
11. Foraminifera daughter : Radiolarians
12. Myxomycota red : Slime mold
13. Bacillariophyta: Algae diatoms