can you please answer the following questions in a short and easy way to remembe

Question

can you please answer the following questions in a short and easy way to remember. thanks. this is for introduction to biology. please check your grammar and typos. thank you.

1. life exhibits unity and diversity. explain what this means

2. using a diagram, illustrate how living things are currently classified into groups or units

3. life can be studied at many levels, from the molecular to the global. explain what this means.

4. living things can be studied at various levels. from the ecosystem to the chemical level, arrange the nine levels in sequence starting with the most general/comprehensive.

5. contrast elements and compounds; cite two examples of each.

6. write the chemical symbols of selected elements, given their names, and vice versa.

7. briefly describe the structure of an atom (bohr model)

8. compare and contrast protons, neutrons, and electrons on the basis of mass, electrical charge, and location within the atom.

9. define the following: atom, atomic number, mass number (=atomic mass), electron shell/energy level, molecule, ion.

10.diagram selected atoms of elements, given the atomic number and the mass number

11.explain what factors help to determine the chemical activity of an atom.

12. compare and contrast ionic, covalent, and hydrogen bonds.

13. compare and contrast polar and nonpolar covalent bonds.

14. explain what is meant by single, double, and triple covalent bonds.

15. define: solution, solute, solvent, acid, base, buffer, salt.

Explanation / Answer

1. Life exhibits unity and diversity. explain what this means

Life exhibits unity: All life forms on Earth will have a common system.

E.g.: All life’s use the common 20 aminoacids for the protein synthesis; All life’s use proteins and lipids to build their cell membranes

Life exhibits Variability: Means there are different species on earth such as Humans, Lions, Bacteria etc. It is also called as “Biodiversity”.

Note: As per the guidelines we can answer only first question. So, I did not answer the remaining questions. Hope you can understand.

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