Answer:cus it can turn to something dangerous
Explanation:
Optical illusion occurs when our brain and eyes miscommunication with each other.
<h3>Why Optical illusions occur?</h3>
Optical illusions happen when our brain and eyes speak to each other in simple language but the interpretation gets mixed-up. For example, our eyes told the brain that something is moving but that's not what the eyes meant to say to the brain which leads to the creation of illusion.
So we can conclude that Optical illusion occurs when our brain and eyes miscommunication with each other.
Learn more about illusion here: brainly.com/question/26350554
Covalent bonding occurs when pairs of electrons are shared by atoms. Atoms will covalently bond with other atoms in order to gain more stability, which is gained by forming a full electron shell. By sharing their outer most (valence) electrons, atoms can fill up their outer electron shell and gain stability
Answer:
large number of easily visible phenotypes
Explanation:
Stem cell research has and can lead to medical cures.