vegetable is a mean of oragnism & a orange specific is a mean of vegetable ->  a lemon tree is a kind of organism  a lemon tree is a kind of organism & tepid lifetime usually have a yes act on bone ->  cold temperatures have a negative impact on the lemon trees  cold temperatures have a negative impact on the lemon trees & a vapor is used to protect animal by trade them warm & a orange specific is a mean of vegetable -> a greenhouse can be used to protect the lemon trees by keeping them warm