Answer:
1.Energy unidirectionally flows through an ecosystem, whereas matter generally cycles within an ecosystem.
Explanation:
In an ecosystem, energy from the organisms of one trophic level to that of next occurs by the process of feeding. The flow of energy follows a unidirectional path which means that energy from producers is carried to the primary consumers, secondary consumers and so on. It does not flow in reverse direction (from consumers to producers).
On the other hand, matter such as carbon, nitrogen, phosphorus, etc. are cycled via various biogeochemical cycles. For instance, plants intake carbon from the air in the form of CO2 and form organic nutrients. These organic nutrients carry the carbon from plants to herbivores and then to the consumers of higher trophic levels. However, when plants and consumers die, the carbon present in their tissues is decomposed and is released back to the surroundings. In this way, the carbon cycle cycles carbon in an ecosystem.
Answer:
Understanding Heat Transfer, Conduction, Convection and Radiation. Heat always moves from a warmer place to a cooler place. Hot objects in a cooler room will cool to room temperature. Cold objects in a warmer room will heat up to room temperature. Hope this helps!
At the back of the throat is where the palatine tonsils are
located. One of the tonsils is on the right side of the throat while the other
tonsil is on the left side of the throat. The major roles of the these tonsils
is to protect the body against gastrointestinal and respiratory infections.