ionic bonding.
Ionic bonding<span> is a type of </span>chemical bond<span> that involves the </span>electrostatic attraction<span> between oppositely charged </span>ions<span>, and is the primary interaction occurring in </span>ionic compounds<span>. The ions are atoms that have gained one or more </span>electrons<span> (known as </span>anions<span>, which are negatively charged) and atoms that have lost one or more electrons (known as </span>cations<span>, which are positively charged). This transfer of electrons is known as </span>electrovalence<span> in contrast to </span>covalence<span>. In the simplest case, the cation is a </span>metal<span> atom and the anion is a </span>nonmetal<span> atom, but these ions can be of a more complex nature, e.g. molecular ions like NH</span>4+<span> or SO</span>42−<span>. In simpler words, an ionic bond is the transfer of electrons from a </span>metal<span> to a </span>non-metal<span> in order to obtain a full valence shell for both atoms.</span>
The tiny hollow air sacs in the lungs where gas exchange takes place are the "a. alveoli". These are the "last stop" on the respiratory tree and are responsible for oxygen exchange.
Answer:
Lipids
Explanation:
Lipids are made of 3 fatty acids and 1 glycerol.
Proteins are made up of amino acids.
Nucleic acids are made up of nucleotides.
Carbohydrates are made up of glucose, galactose or sucrose.
Snapdragon Flowers and Roan Horses are some real life examples of heterozygous genotypes
<span>The cell membrane acts as a selective, partially permeable boundary which allows wanted substances to move into the cell and unwanted substances to be kept out. Moreover, cell membranes contain surface antigens, which allow the cells to be identified as "self" by the immune system. The cell membrane does not contain hereditary material.</span>
