It would be Agility
Explanation: a number of factors can affect bone health like the amount of calcium in your diet
Javier is correct, genes are contained inside a chromosome. In other words, a chromosome contains many genes and a gene is a segment of DNA which provides the code to construct a protein.
Their parents and their environment have a impact on how the child develops
The lumbar nerves exit the intervertebral foramen under the pedicle of the same numbered vertebral body.
lumbar sacral: intervertebral
coccygeal: vertebral
Open the cage, haha. On a serious note if the bird isn't trained you should block the exit with your hand so you can capture it and it doesn't fly away.