Most likely.
no, chemical energy is the energy released from chemical reactions
They need a source of energy.A Source of Energy
false
Yes, it is true.
This is true. Energy is required to begin all reactions.
No. An enzyme is a chemical that speeds up chemical reactions without adding any energy to them. Sugar is an energy source that makes some chemical reactions happen. They are different things and work on different principles.
The sun is the initial (primary) energy source for life. Ingestion and digestion of a food source is an animal's primary source of energy.
gravitational potential energy
Electrical discharge
the ultimate source of energy for all living organisms is the sun
The adeylate molecule ATP is the primary source of energy from respiration.
The sun is the source of all energy in a food web. The primary producers - plants - use the sun's energy to produce organic compounds. Some producers eg micro-organism use inorganic chemical reactions to produce energy