Answer: d
The respiratory and circulatory systems bring oxygen and nutrients to the cells. The respiratory and circulatory systems work together to maintain homeostasis. The respiratory system moves gases into and out of the blood. The lungs contain the bronchi, bronchioles, and alveoli.
Explanation:
Answer:
Based on what this article says about neuron function, why wouldn't they be helpful for plants or microorganisms? Neurons enable thought, perception, and movement. Plants do not move, so they do not need this type of tissue. Microorganisms are too small to have a nervous system.
Explanation:
haha plant life go brrrrr
Neck and head, I believe. The vertebral column is your spine
Radium, it sits at 55% of our exposure.
