C. When there is an equal number of molecules on each side
The tightness with which a chemical attaches to a binding site is termed its affinity for that site, while the effectiveness of the binding chemical is termed its efficacy.
Affinity quantifies how well a medication binds to a receptor (or how well it "fits the lock").
The ability of a drug-bound receptor to induce a response (or "turn the key") is referred to as efficacy.
While antagonists only have affinity for the receptors and no (zero) effectiveness, agonists have both affinities and efficacy for the receptor.
Effectiveness governs what transpires after the medication has been attached to the receptor through affinity.
The affinity (potency) and/or efficacy of different medicines that bind to the same receptor and elicit the same type of response will often vary from one another.
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As described in this case, firstly G.fuliginosa species of bird were live on Los hermanos island solely thus they didn't face any competition.
Darwin's finches are a group of birds that diversified after they migrated from South America to the Galapagos Islands. They each evolved on separate islands separated by large bodies of water. They are therefore an example of allopatric speciation. Repeated volcanic eruptions have helped shape the rugged mountainous landscape of the Galapagos Islands.
The Galapagos Islands are known for their diversity of flora and fauna. Many species are endemic and cannot be found anywhere else in the world. The Galapagos Islands lie on either side of the equator in both the northern and southern hemispheres. These islands are located at the confluence of her three currents in the Pacific Ocean creating an area where warm and cold waters converge.
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