Covalent bond = a bond in which the electrons are shared by the partner atoms.
<span>Polar bond = simply a type of covalent bond in which the electrons are </span>
<span>shared but not equally. This happens when two different atoms come </span>
<span>together, such a C and O. Each atom has a different ability to draw </span>
<span>electrons to itself when it shares electrons (that drawing ability is </span>
<span>called Electronegativity). </span>
I think it's Photosynthesis because photosynthetic bacteria began producing excess oxygen, which added oxygen to the Earth's atmosphere.
Monomers are molecules whose linkage between them form polymers.
<h3>What are monomers?</h3>
Monomers are molecules that have a low molecular mass.
<h3>Characteristics of monomers</h3>
- When many monomers come together through chemical bonds they form a polymer, which is a macromolecule.
- Natural monomers allow the formation of biomolecules found in living beings.
- Carbohydrates, for example, are macromolecules that are created from the bond established by monosaccharides (monomers).
Therefore, we can conclude that polymers, in short, are chains of monomers -generally joined by covalent bonds-.
Learn more about monomers here: brainly.com/question/24573189
Immigration followed by competition
I hope this right, if its not, sorry =)
