immune and digestive systems digestive and endocrine systems reproductive and immune systems endocrine and reproductive systems
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: When specific hormones are present in the blood of a hen, an egg is released from an ovary. Which two systems are involved with the release of an egg?
Possibilities:
- immune and digestive systems
- digestive and endocrine systems
- reproductive and immune systems
- endocrine and reproductive systems

endocrine and reproductive systems