A.
Active transport is the energy-requiring process of pumping molecules and ions across membranes "uphill" - against a concentration gradient.
Answer:
Symbiosis is where no organism is killed in the relationship.
Parasitism: The host is harmed but not killed.
Mutualism: Both organisms are benefitted
Commensalism: One organism is benefitted, the other is not effected
In predation, the prey is killed and eaten by the predator for energy.
Sometimes you may see that they consider predation a symbiotic relationship, but not always.
If you mean the scientific method it is
make an observation
form a question
form a hypothesis
conduct an experiment
make a conclusion
<span>Time, interface, &sequence; What ever the composition of the system, be it static (balanced) or dynamic (subject to change) it exists because of the dimensions that govern its composition. Time = a physical measurement of the expenditure of energy. Interface= each component reaching for dominance, verses all other components seeking to achieve the same result, thus achieving a compromise, or balance. Sequence= each event measured in milliseconds, or nanoseconds, or what ever increment of stability is achieved, until balance succeeds.</span>
Hair follicles, saliva, white blood cells, and sperm