Question

types of glands
how do endocrine glands differ from exocrine glands?
endocrine glands are all interconnected, whereas exocrine glands act completely independently.
endocrine glands release hormones, whereas exocrine glands release waste.
endocrine glands are formed by epithelial tissue, but exocrine glands are primarily connective tissue.
endocrine glands are ductless, and exocrine glands release secretions at the bodys surface or into ducts.

Explanation:

Endocrine glands are ductless and secrete hormones directly into the bloodstream. Exocrine glands have ducts and secrete substances (like sweat, digestive enzymes) either onto the body's surface or into ducts.

• First option: Endocrine glands aren't all interconnected in that sense, and exocrine glands don't act completely independently (e.g., salivary glands work in coordination with digestive processes).
• Second option: Exocrine glands don't just release waste. For example, sweat glands release sweat which has a role in thermoregulation and also excretes some waste, but digestive exocrine glands (e.g., pancreas releasing digestive enzymes) are about digestion, not waste.
• Third option: Both endocrine and exocrine glands are formed from epithelial tissue.

Answer:

Endocrine glands are ductless, and exocrine glands release secretions at the body’s surface or into ducts.