Light enters the eye through the cornea, the clear, curved layer in front of the iris and pupil. ... By changing its shape, the lens focuses light onto the retina. Through the action of small muscles (called the ciliary muscles), the lens becomes thicker to focus on nearby objects and thinner to focus on distant objects.
Answer:
Carbon is found in almost everything so I would assume a lot
Explanation:
Btw I dont know what the producers pool is
Reproductive isolation but more specifically I think it would be geographic isolation
Carbon compounds regulate the Earth's temperature, make up the food that sustains us, and provide energy that fuels our global economy. Most of Earth's carbon is stored in rocks and sediments. The rest is located in the ocean, atmosphere, and in living organisms. These are the reservoirs through which carbon cycles.