Problem:

Please choose correct option:

Question 1: Evolution is genetic change in ......... that occurs over time.

1. An individual
2. A population
3. A community
4. An ecosystem
5. The biosphere

Question 2: Bacteria evolve antibiotic resistance through all of the following mechanisms except:

1. Mutations
2. Intense predation
3. Acquiring new genes from viruses.
4. Acquiring new genes from plasmids
5. Acquiring new genes from other bacteria that survive antibiotic treatments.

Question 3: Which of the following gases was not present in the Earth's early atmosphere but appear the evolution of certain organisms?

1. Hydrogen
2. Methane
3. Nitrogen
4. Oxygen
5. Carbon dioxide

Question 4: Macromolecules that are capable of self-replicaton are :

1. Proteins
2. Polysaccharides
3. Steroids
4. DNA and RNA
5. Triglycerides

Question 5: The theory that eukaryotic organelles originated as prokaryotes that survived inges cell and ultimately evolved mutualistic relationships with the host cell is termed

1. Obligative symbiotic theory
2. Heterosymbiont theory
3. Endosymbiont theory
4. Facultative symbiotic theory
5. Autotrophic symbiotic theory