Biology 1010 Exam 3
1. What is a universal common an- the most recent population of organisms from which all
cestor? organisms now living on Earth have a common descent
(all prokaryotes, archaea and eukaryotes are related)
2. How are species named through Genus, species
taxonomic information?
3. Did prokaryotes or eukaryotes prokaryotes
evolve first?
4. What are prokaryotes? Bacteria and Archaea (don't have a nucleus)
5. What are eukaryotes? plants, animals, fungi, protists (have a nucleus)
6. Define anaerobic without oxygen
, Biology 1010 Exam 3
7. Define aerobic with oxygen
8. Define Chemotroph microbes that gain energy from chemical compounds
9. Define phototroph organisms that obtain energy from light
10. The first living things used.... to sunlight
make energy
11. What are cynobacteria? bacteria that produce oxygen through photosynthesis
12. Why are cyanobacteria impor- They are oxygenic photosynthesizers who likely oxygenat-
tant? ed early Earth using carbon dioxide
13. What are viruses? non-cellular entities that are parasitize cells
14. Extremophiles are often archaea
15. What are protists? eukaryotes that could have several nuclei
16. Protists are important to the envi- True
ronment as they provide oxygen
1. What is a universal common an- the most recent population of organisms from which all
cestor? organisms now living on Earth have a common descent
(all prokaryotes, archaea and eukaryotes are related)
2. How are species named through Genus, species
taxonomic information?
3. Did prokaryotes or eukaryotes prokaryotes
evolve first?
4. What are prokaryotes? Bacteria and Archaea (don't have a nucleus)
5. What are eukaryotes? plants, animals, fungi, protists (have a nucleus)
6. Define anaerobic without oxygen
, Biology 1010 Exam 3
7. Define aerobic with oxygen
8. Define Chemotroph microbes that gain energy from chemical compounds
9. Define phototroph organisms that obtain energy from light
10. The first living things used.... to sunlight
make energy
11. What are cynobacteria? bacteria that produce oxygen through photosynthesis
12. Why are cyanobacteria impor- They are oxygenic photosynthesizers who likely oxygenat-
tant? ed early Earth using carbon dioxide
13. What are viruses? non-cellular entities that are parasitize cells
14. Extremophiles are often archaea
15. What are protists? eukaryotes that could have several nuclei
16. Protists are important to the envi- True
ronment as they provide oxygen
