Which identifies strucrures of the human body in order from least complex to most complex levels of organization?
A. Human heart-circulatory system-artery- blood vessel
B. Nerve cell-brain tissue-brain-nervous system
C. Blood vessel-circulatory system-artery-human heart
D.brain tissue-cell-brain-nervous system
My answer is A. Please help! If I’m wrong please say why and what the answer is. Thanks
Please help me! I am so confused
Anyone in here?
Help me someone pleasee!
To identify the structures of the human body in order from least complex to most complex levels of organization, we need to understand the hierarchy of organization in the human body.
The correct answer is B. Here's the breakdown of the structures in order from least complex to most complex levels of organization:
Nerve cell → Brain tissue → Brain → Nervous system
Let's explain why this is the correct answer:
A. Human heart → Circulatory system → Artery → Blood vessel
The circulatory system includes the human heart, arteries, and blood vessels. The circulatory system is more complex than its individual components. So, this answer is incorrect.
B. Nerve cell → Brain tissue → Brain → Nervous system
The nervous system consists of nerve cells (neurons) that make up various tissues in the brain, and the brain is the main organ of the nervous system. This answer is correct because it starts with the least complex unit, the nerve cell, and progresses to more complex structures, ultimately reaching the nervous system as a whole.
C. Blood vessel → Circulatory system → Artery → Human heart
Similar to option A, this answer starts with the least complex unit, the blood vessel, but then progresses in the wrong direction. The circulatory system encompasses the blood vessels, and the human heart is an organ within the circulatory system. Therefore, this answer is incorrect.
D. Brain tissue → Cell → Brain → Nervous system
This answer starts with brain tissue, which is a component of the brain. It then moves to a single cell before going back to the brain and nervous system. While it includes the correct structures, the order is incorrect, so this answer is also incorrect.
In summary, the correct answer is B: Nerve cell → Brain tissue → Brain → Nervous system, as it represents the order of structures from least complex to most complex in the hierarchy of organization in the human body.