Please Help: Question 1: Why are plastics called polymers? Explain the nature of a polymer. Question 2: Why is carbon able to fo
rm so many molecules? Name two examples of molecules containing carbon. Question 3: Discuss the four macromolecules that occur in nature, including the building block units of each different macromolecule. ( Only answer if you know the answers to all 3 questions) Will Mark Brainliest.
Answer: 1. Plastics are polymers. A polymer is a substance made of many repeating units. The word polymer comes from two Greek words: poly, meaning many, and meros, meaning parts or units. A polymer can be thought of as a chain in which each link is the “mer,” or monomer (single unit). 2. Carbon is the only element that can form so many different compounds because each carbon atom can form four chemical bonds to other atoms, and because the carbon atom is just the right, small size to fit in comfortably as parts of very large molecules. ... They can even join "head-to-tail" to make rings of carbon atoms. An example of two molecules that contain carbon is compound methane ( 1 carbon bounded to four hydrogen. ) ... Carbon is able to form so many molecules/compounds because each carbon atom can form four chemical bonds to other atoms and, because of its size, it fits in nicely as part of large molecules. 3. Carbohydrates- Monosaccharides (simple sugars), Lipids- Fatty acids and glycerol, Proteins- Amino acids, Nucleic acids- Nucleotides. brainliest??
<u> Option-(B): </u> If biological species are defined in terms of reproductive compatibility, the formation of a new species hinges on <u>reproductive isolation.</u>
Explanation:
There is diversity among being and we see that millions of species roam the face of land, all this happens in the tenure of centuries. While the process of evolution or creation of new species happens when a certain specie is kept inside such an environment or a very unique environment that the species is tempted to cross with another form of organism belonging to a different specie, so, this process initiates the creation of new species or organisms having a very different set of characteristics as compared to there ancestors.
A hydrogen atom is an atom of the chemical element hydrogen. The electrically neutral atom contains a single positively charged proton and a single negatively charged electron bound to the nucleus by the Coulomb force.
