Answer:
Explanation:
The 10% Rule means that when energy is passed in an ecosystem from one trophic level to the next, only ten percent of the energy will be passed on.
Darwin’s ideas operate on the basis that organisms must change to survive in their environment. One of the key aspects of these changes is that they help the organisms utilize resources as effectively as possible. If there were unlimited resources there would not be a need for change. Malthus’s studies in limited resources shows how human populations changed to best use the resources available.
third world countries
Explanation:
are the results of countries with low exports and high imports
The hormone being referred to is Epinephrine.
This hormone is secreted mainly in the medulla of the adrenal glands and it functions primarily to increase cardiac output and to raise glucose levels in blood. Normally the hormone is produced during acute stress, and its stimulatory effects fortify and prepare individual for fight or flight.