Question

objective: this activity has the purpose of helping students to define endocrine system (objective 1). student instructions: 1. this activity is a multiple choice. 2. you can realize this assessment two (2) time. 3. after starting, you will have 5 min to complete it. 4. this exercise is worth 1 point. 5. submit your answers in blackboard. 6. the deadline is indicated on “calendar”, which is located in “tools” in the blackboard platform. question 1 endocrine glands. a) secrete hormones that travel through a duct to the target organs. b) release neurotransmitters into the synaptic cleft. c) secrete chemical messengers that travel in the bloodstream. d) include sebaceous glands and sweat glands.

Explanation:

To determine the correct answer about endocrine glands, we analyze each option:

• Option A: Endocrine glands are ductless; they secrete hormones directly into the bloodstream, not through a duct. So A is incorrect.
• Option B: Neurons release neurotransmitters into the synaptic cleft, not endocrine glands. So B is incorrect.
• Option C: Endocrine glands secrete hormones (chemical messengers) that travel in the bloodstream to target organs. This matches the definition of endocrine glands.
• Option D: Sebaceous glands and sweat glands are exocrine glands (they have ducts), while endocrine glands are ductless. So D is incorrect.

Answer:

C. secrete chemical messengers that travel in the bloodstream