| REPRODUCTIVE | The reproductive system contains both male and female ___ organs. Two earthworms are needed for fertilization. They cannot fertilize themselves. |
| MATE | In most wolf packs, only the alpha male and female ___ |
| SENSORY | Human beings have five ____ organs, two in pairs |
| COPULATION | ___ between two earthworms happens at night on the soil surface. Sperm is deposited from each earthworm into the other. |
| CYLINDRICAL | Earthworms are ___ and segmented. |
| MOISTURE | Earthworms are mostly active when there is enough ___ present in the soil, preferring soils that have a chemical property ranging from neutral to slightly acidic. |
| TONSIL | An organ two Poles come in to work |
| FEARSOME | Loud organ: two notes terrifying |
| OVULE | Part of the reproductive system of a seed plant that develops into a seed when fertilised, made up of the embryo sac, the surrounding nucellus and one or two protective integuments (5) |
| BIOXETHICS | Course on the moral choices faced by a bovine that's attracted to both male and female bovines? |
| ANDROGYNY | Having both male and female characteristics, Andrew draws in Roger and unknown last woman (9) |
| FLOOR | One of only two events both male and female gymnasts compete in (5) |
| NESTS | Both males and female Tasmanian devils make simple ___ of bark, grass, and leaves, which they inhabit throughout the day |
| COED | For both male and female college students |
| HERMAPHRODITE | Has both male and female reproductive parts |
| KABUKI | Drama in which male actors play both male and female parts |
| PERFECT | A flower with both male and female reproductive parts, say (7) |
| UNISEX | Suitable for both male and female (6) |
| BLOOD | Both male and female mosquitoes feed off nectar from plants but only females need ___ |
| HERMAPHRODITES | Creatures that produce both male and female gametes, such as snails (14) |