This is the biology Unit 3&4 flashcards.
| Front | Environmental selection pressures |
| Back | external agents which influence the ability of an individual to survive in their environment |
| Front | Immunoglobulin E (IgE) antibodies |
| Back | a type of antibody produced in response to exposure to a particular allergen; involved in allergic reactions |
| Front | Thylakoid |
| Back | flattened membranous sacs in chloroplasts that contain chlorophyll |