Photosynthesis is the process where plants turn the sun's energy into food for the plant. It is like the human's process of cellular respiration.
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Answer:
Option 4, Organisms in level D are heterotrophic.
Explanation:
Generally in a energy level or trophic level system, organisms are arranged on a pyramid scale in such a way that organism lying at the level A or the base of the pyramid are producers. They obtain energy from the sun and produce food for other organisms. Organism in level B is a herbivore which feed upon the plants to gain food and energy. In level C organisms that feed upon herbivores i.e the carnivores lies. At level D lies the microorganisms that feed upon dead remains of high order animals and plants. Hence, organisms at level D are called heterotrophs.
Thus, option 4 is correct
Explanation:
The model only shows the sensory pathway of the reflex arc and does not show the motor pathway. The neuron loop / circuit is incomplete and therefore it does not show how Zoe would react to the nail in her leg.
When the sensory pathway carries the signal to the brain about the pain in the leg, the brain process the information and sends feedback to the muscles through motor neurons ‘telling’ the muscles how to react. The motors' neuron causes the muscle to contract in such a way that the leg moves away from the nail.
Mitochondria converts oxygen and the sugar fat and protein from foods to useable energy.
