Options for the question have not been given. They are as follows:
A) parasitism
B) mutualism
C) inhibition
D) facilitation
E) commensalism
Answer:
D) facilitation
Explanation:
In ecology, facilitation is used to describe community interaction between two species in which at least one of the species is benefited. One species "facilitates" survival of another species and hence the term facilitation. They can provide facilitation by providing them refuge from predation, competition, physical stress etc.
Facilitation is broadly of two types, mutualism and commensalism. In mutualism, both the interacting organisms are benefited. In commensalism, one organism is benefited and another one is neither benefited nor harmed.
A gated channel is an example of facilitated diffusion. A gated channel protein is a transport protein that opens a "gate" allowing a molecule to pass through the membrane (usually molecules too big to enter the cell by passing through the membrane itself).<span> </span>Gated channels <span>have a binding site that is specific for a given molecule or ion. (meaning only certain molecules or ions can enter the channel).</span>
Natural selection a process that occurs over successive generations and is defined as the differential reproduction of genotypes. Natural selection requires heritable variations in a given trait
Physical fitness is a medical term describing the effect of exercise on body systems and disease prevention. The body’s ability to function efficiently and effectiveness' it should contain health-related physical fitness and skill-related physical fitness. Physical fitness includes metabolic fitness and bone integrity. It is associated with person’s ability to resist hypokinetic diseases.
Optimal physical fitness is not possible without regular exercise.
