Answer:
Gymnosperms: naked seeds, they usually have no flowers or fruits, and Gymnosperms are sometimes configured as cones.
Angiosperms: there seeds are enclosed inside an ovary usually a fruit, they have few cells unlike a Gymnosperm, and have no flagella deposited at egg.
Chemical energy it is the energy stored in the chemical bonds of molecules
B.cell wall
Cellulose is an important structural component of the primary cell wall of green plants.
The circulatory and respiratory systems work together to circulate blood and oxygen throughout the body. Air moves in and out of the lungs through the trachea, bronchi, and bronchioles. Blood moves in and out of the lungs through the pulmonary arteries and veins that connect to the heart.
Chemistry as a subject has a significant importance in our daily lives and the society in general. Everything on the earth is made of chemicals. ... It also describes various chemical elements preset in the environment, their reactions, and effects on the environment.