How do endocrine glands differ from other body glands, such as sweat glands?
A: Endocrine glands can only affect nearby structures
B: Endocrine glands release chemicals into the bloodstream
C: Endocrine glands release chemicals into tiny tubes
D: Endocrine glands have a system of ducts
B: Endocrine glands release chemicals into the bloodstream
Endocrine glands differ from other body glands, such as sweat glands, because they release hormones directly into the bloodstream to regulate various bodily functions, while other glands may release substances through ducts to specific locations in the body.