| 1. | Each brood chamber is stocked with one to six honeybees.
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| 2. | The eggs stay in the ovarian lumen until being transported to the brood chamber for fertilization.
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| 3. | Gonozooids act as brood chambers for fertilized eggs.
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| 4. | The embryos develop in brood chambers until they reach a certain size, then disperse as parenchymella larvae.
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| 5. | Up to 34 lateral tunnels each ending in a brood chamber branch off from the main tunnel.
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| 6. | In most species these are used for locomotion and are of much the same size, brood chamber for the eggs.
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| 7. | Fertilization is external in most species, but platyctenids use internal fertilization and keep the eggs in brood chambers until they hatch.
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| 8. | All stingless bees of the tribe Meliponini build cells in a brood chamber within the nest; unlike bees of other tribes.
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| 9. | In the spring, they clean out and enlarge the old tunnels used during the Winter or make new ones as brood chambers.
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| 10. | This brood chamber is surrounded by layers of cerumen, called the involucrum, which helps maintain a constant climate in the brood chamber.
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