In this question, there are no options given to choose from. So i would answer this question based on my knowledge. The most likely cause of the observed variation is adaptation and evolution. The birds of that island adapted to the food source and then they evolved as per the requirement of the place and food source.
This is possible if the mother does not carry that trait, or has a stronger trait for not carrying that melintin trait.
To increase the energy transferred to an ice cube, you can hold it to transfer heat energy from your hands to the ice cube. This is an example of conduction
Explanation:
A varicocele is when veins become enlarged inside your scrotum (the pouch of skin that holds your testicles). These veins are called the pampiniform plexus. Out of one hundred males, ten to fifteen have varicocele. It is like getting a varicose vein in your leg.
Varicoceles are when the pampiniform plexus veins in the scrotum become enlarged. These veins are like varicose veins (twisted, swollen veins, found in the leg.) Varicoceles form during puberty. They can grow larger and you may notice them more over time. Varicoceles are more common on the left side of the scrotum. This is because the male anatomy is not the same on both sides. Varicoceles can exist on both sides at the same time, but this is rare. About 10 to 15 boys out of 100 have a varicocele.
Answer:
The growth of the species population out paces the species ability to obtain water.
Explanation: