1. a vibration of an electric charge. 2.transmits energy from the sun to earth 3. a wave which has both an electric and a magnetic component 4. the speed of this wave decreases as the medium becomes denser. what type of wave is being described by the statements above?

a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.

if you know your abc's you should be able to get your answer or just use google

1. amino acid refers to the fundamental building block of proteins, comprising of an amino group and a carboxyl group.

2. catalyst refers to any substance, which increases the rate of chemical reaction without being used up in the reaction.

3. a complex molecule containing he genetic code is dna or deoxyribonucleic acid.

4. an enzyme refers to a molecule of protein, which is unique in accelerating up a particular chemical reaction in the biological systems.

5. nucleic acid refers to an sequence of sugars, phosphates, and nitrogenous bases, for example, dna and rna.

6. a protein refers to a large, composite organic molecule comprising of a huge number of amino acids associated together with the of peptide bonds.

7. rna refers to a nucleic acid that takes part in the production of proteins.

8. substrate refers to a compound, which takes part in a chemical reaction, and is chemically modified by the reaction.