Multiple Choice
Immunoglobulin ____ is found on the surface of B lymphocytes and is important in B cell activation.
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1. Introduction to Biology
Introduction to Biology
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Which of the following best explains how the cardiovascular system contributes to hormone distribution during exercise?
A
It breaks down hormones to provide energy for exercising muscles.
B
It transports hormones released by endocrine glands to target tissues via the bloodstream.
C
It stores hormones for later release during physical activity.
D
It produces hormones that regulate muscle contraction.
Verified step by step guidance1
Understand the role of the cardiovascular system: The cardiovascular system is responsible for transporting substances, including hormones, oxygen, and nutrients, throughout the body via the bloodstream.
Identify the role of hormones during exercise: Hormones released by endocrine glands regulate various physiological processes, such as energy metabolism, heart rate, and muscle function, to support physical activity.
Recognize the connection between the cardiovascular system and hormone distribution: Hormones are secreted by endocrine glands into the bloodstream, which is circulated by the cardiovascular system to deliver these hormones to their target tissues.
Eliminate incorrect options: The cardiovascular system does not break down hormones for energy, store hormones for later use, or produce hormones. Its primary function is transportation.
Conclude the correct explanation: The cardiovascular system contributes to hormone distribution during exercise by transporting hormones released by endocrine glands to their target tissues via the bloodstream.
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