Answer:
Function Seeds serve several functions for the plants
Explanation:
Functions. Seeds serve several functions for the plants that produce them. Key among these functions are nourishment of the embryo, dispersal to a new location, and dormancy during unfavorable conditions.
The brain and the spinal cord are the organs of the central nervous system.
Answer:

aka Ethenone
Explanation:
Ethenone is an organic compound made out of the elements Carbon, Hydrogen, and Oxygen. It is an example of a covalent molecule. The Hydrogens are single bonded to the carbon and then the carbons and oxygen are double-bonded to each other. Additionally, because there are 2 Hydrogens and 1 Oxygen the ratio is 2:1, as stated in the question.
Answer:
Measuring heart rate and noting blood pressure is the answer.
Explanation: