The optic chiasm is an X-shaped structure formed by the crossing of the optic nerves in the brain. The optic nerve connects the brain to the eye.
Eukaryote because its apparently living organism
The young tomato plant doesn't have enough energy to pull more leaves out after its already grown a stem, very hot temperatures will stunt the growth of the tomato plant because of this.
Hydroxyapatite is the major component of bone that contributes to its hardness.
It is Big Bang and cannot be proved. A hypotheses must be testable. Big Bang is not testable.
