The nurses are wrong because first of all brown is a dominant eye color while blur is the recessive one. So the blue-eyed baby has to belong with the couple who both have blue eyes, while the brown-eyed baby has to belong to the couple that one parent has blue eyes and the other has brown eyes.
Answer:
a
Explanation:
you got to think single cell organisms were not abundant however the Co2 and salt compounds were as well as the oxygen needed to help evolve them which led the moncellular creatures to evolve into algae and fungi and then those 2 formed a symbiotic relationship to form lichen
Atomic number of an atom equals to the number of nucleus in the nucleus of the atom. Therefore, the answer is 74.
The proton of an element is never changed. No matter if it's an atom or ion. It's like an ID number for an element. It defines the type of element. Don't mix up atomic number with mass number though, mass number is the total sum of of the number of protons and neutrons in an atom.
Theres one more subatomic particle in an atom, that is electrons. But since they're too light, they won't be counted in mass. Also, the number of electrons in an atom equals to the number of proton, also the atomic number. If the number of electrons is different, it's no longer an atom, but an ion.
Your answer is D
Biology is my best subject
The base on which an organism lives
