imbalance in ecosystems predator-prey relationships dominant and recessive traits male and female genetic differences
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: What biological concept was Mendel studying when he crossed pea plants many times over many generations?
Possibilities:
- imbalance in ecosystems
- predator-prey relationships
- dominant and recessive traits
- male and female genetic differences

dominant and recessive traits