Answer:
the muscle tissues of arteries are thicker than the muscle tissues of veins.
Explanation:
the muscle tissues of arteries are thicker than those of veins because they carry oxygenated bloody to all the body parts(except the pulmonary artery)
Answer:
Option (e).
Explanation:
Nervous system is one of the most important systems of the organism that helps them to respond them towards the environment. The nervous system includes the brain, spinal cord and all the neurons.
Nervous system is present in highly complex organism and increases in complexity in case of higher animals. Lower animals do not have nervous system but still they respond to their environment with the help of chemical and receptor. Hence, all the animals have the ability to respond towards the environment.
Thus, the answer is option (e).
Answer:Smooth muscle is called involuntary muscle because you can not control this type of muscle movement. These muscles line internal organs, blood vessels, and organs such found in the digestive and reproductive systems.
Explanation:
I would say A. The three other choices could lead to its start.
