I think it'd be option 4.Throughout all of it
The picture doesn't mention mating or nesting - there is not a single mention of those. Therefore we cannot use answers 2) and 4), since we know nothing about them.
The same actually holds for 3) - while there is a mention of the beaks and you can infer the beak size, there is no connection between the beak size and mating activity.
so the correct answer is 1) -the type of beak is matched with the food.
The hyngrim method from the old sience method
Answer:
Mountains are cooler than plains because with increase in height the temperature decreases. EXPLANATION: Mountains are located in high elevations and plains are located in low elevations. Their respective heights are measured by term called as their height above sea level.
Stem cells can give rise to specialized cells. When unspecialized stem cells give rise to specialized cells, the process is called differentiation. While differentiating, the cell usually goes through several stages, becoming more specialized at each step. Scientists are just beginning to understand the signals inside and outside cells that trigger each step of the differentiation process.
Hope I help you