A is the answer. It’s like addition.
The Fossil Record. Fossils provide evidence that organisms from the past are not the same as those found today, and demonstrate a progression of evolution. Scientists date and categorize fossils to determine when the organisms lived relative to each other.
Brainliest please
The spinal cord and the brain make up the central nervous system, and spinal cord nerves carry most messages between the brain and the rest of the body.
The vagus nerve carries the signal from the brain to the heart.
Distance - an amount of space between two things
Displacement - something that is moved from original place or the area between a object when place in water (volume)
Slope - rise over run or an angle of a line
Sl unit for speed and velocity - meter per second
Sl unit for acceleration - meter per second squared
Acetylcholine..
hope it helps