Observation is broken up into three parts. The first is the date. Then you have the activity and last you have a brief description of what is being observed.
Answer:
Both cardiac and smooth muscle are involuntary while skeletal muscle is voluntary.
Explanation:
I thinking A. or B. but im sure it one of them. that's a 50% chance.
It radiates light and heat, or solar energy, which makes it possible for life to exist on Earth. Plants need sunlight to grow. Animals, including humans, need plants for food and the oxygen they produce. Without heat from the sun, Earth would freeze.
