Answer:
D
Explanation:
The simple answer is the electrons in the outermost energy level.
Hydrogen has 1 electron in the outermost energy level.
Magnesium has 2 so this tells you that magnesium has a charge of 2
Oxygen has 6 oxygen has a charge of - 2
Fluorine has 7
For most elements, the electrons in the most outer ring determine the valence of the element.
Notice that the non metals work differently than the metals. Mg may have a charge of 2 and that is the number of electrons in the valence right.
Oxygen is a non metal it has a charge of - 2. It gets 6 electrons by subtracting the number of its charge from 8.
Pretty sure he used female gametes
Answer:
pharynx as it has functions in both the respiratory system and the digestive system.
Explanation:
Answer:
You can determine something is living by classifying it if it has the seven characteristic of life
Autosomal recessive is one of several ways that a trait, disorder, or disease can be passed down through families.
An autosomal recessive disorder means two copies of an abnormal gene must be present in order for the disease or trait to develope.
Here's the website where I got this from if you want to know more, hope this helps! :)
Source: https://www.nlm.nih.gov/medlineplus/ency/article/002052.htm
