The ciliary muscles behind the iris shape the lens by pulling the choroid up and relaxing the suspensory ligaments. The ciliary muscle changes the shape of the lens within the eye, not the size of the pupil which is carried out by the spincter pipillae muscle and dilator pupillae. When the ciliary muscle is relaxed, the choroid acts like a spring pulling on the lens via the zonule fibers causing the lens to flatten, and when the muscle contracts, it stretches the choroid, releasing the tension on the lens and thus they become thicker.
Answer:
what are the choices for the adaptation
Answer:
Regulates Checkpoints - growth factor and damage to DNA
Speeds up or slows down - External regulators
Stops cell cycle - When cells are growing and dividing
Make sure chromosomes have replicated - Internal regulators
Explanation:
Cell cycle is the process by which cell development happens. The body functions has the ability to control the growth of cells. When the body looses the ability to control and regulate the cell growth cycle the body is in a state of disease called cancer.
Answer:
that's cool you can do that
Explanation:
Answer: A: by breaking ans reforming chemical bonds in the molecules
Explanation: There is energy stored in chemical bonds between food molecules (this is referred to as ATP, or Adenosine TriPhosphate, which is the type of energy your body uses). When chemical bonds are created, some energy is stored in those bonds (personally, I like to think that it's because the bonds need energy to stay bonded, but there is no science to prove this). When one of these bonds are broken, the energy that was stored is released, and can then be used by your body. Your body then uses a different type of energy (called ADP, or Adenosine DiPhosphate) to reform the bonds, which then go on to become waste products.