External respiration (correct answer) involves the exchange of oxygen and carbon dioxide within the environment.
The exchange of wastes through the skin is just called excretion by sweating.
There is no exchange of nutrients that occur in the lungs but rather absorption of nutrients is the function of the gastrointestinal tract.
The exchange of oxygen and carbon dioxide within the cell is called cellular respiration and involves carrying oxygen from the blood to the cell then the cell uses it as the final electron acceptor in the electron transport chain. The metabolic wastes of the cell, primarily carbon dioxide, goes now to the bloodstream to be exchanged for oxygen in the lungs.
The correct answer is that Plants that are fertilized with fish meal will grow taller than plants that receive artificial fertilizer.
The hypothesis that Fish meal is better than artificial fertilizer. The revised statement to this hypothesis could explain the effect of fish meal which affects the plant in a better way when compared to artificial fertilizers. The plants fed with fish meal will grow taller than plants that are fed with artificial fertilizer.
Consists of cranial and spinal nerves carrying impulses to and from the brain and spinal cord
Static Electricity - the word static means 'at rest' - this kind of electricity exists when objects separated by an insulator has a build up of opposite charges. Because the attraction between these charges is so strong, they can flow even through great insulators. Ex: lightning, friction
Current Electricity - it makes electronic devices possible. There is a constant flow of charges in this type of electricity. In contrast to static electricity, current electricity is changing, dynamic and always on the move. Ex: starting a car, watching TV, using an electric stove.
