SCI 115 Quiz
QUESTION 1
The female part of a flower is known as the ____.
| a. | stamen | |
| b. | anther | |
| c. | carpel | |
| d. | megaspore | |
| e. | endosperm |
1 points
QUESTION 2
According to scientific evidence, the first organisms on Earth must have been ____.
| a. | aerobic | |
| b. | pathogenic | |
| c. | anaerobic | |
| d. | heterotrophs | |
| e. | multicellular |
1 points
QUESTION 3
Most fungi provide an important ecological service by being ____.
| a. | primary producers | |
| b. | pollination vectors | |
| c. | colonizers | |
| d. | secondary consumers | |
| e. | decomposers |
1 points
QUESTION 4
Evidence supporting the lack of oxygen on early Earth includes _____.
| a. | the presence of early photosynthesizers | |
| b. | the immediate breakdown of organic molecules | |
| c. | the lack of iron oxidation on ancient rocks | |
| d. | the presence of iron oxidation on ancient rocks | |
| e. | the accumulation of ozone |
1 points
QUESTION 5
____ allow bacteria to join together to transfer genes.
| a. | Flagella | |
| b. | Spores | |
| c. | Capsules | |
| d. | Pili |
- points
QUESTION 6
A composite organism consisting of a fungus and a single-celled photosynthetic species is called a ____.
| a. | mycorrhiza | |
| b. | rust | |
| c. | lichen | |
| d. | mycelium | |
| e. | chytrid |
1 points
QUESTION 7
____ are believed to have once existed as independent prokaryotes.
| a. | Bacteriophages | |
| b. | Chloroplasts | |
| c. | Slime molds | |
| d. | Protists | |
| e. | Nuclei |
1 points
QUESTION 8
Which are low-growing, nonvascular plants that have flagellated sperm and disperse by producing spores?
| a. | mosses | |
| b. | ferns | |
| c. | liverworts | |
| d. | hornworts | |
| e. | lichen |
1 points
QUESTION 9
Prokaryotic cells are ____.
| a. | found only in extreme habitats | |
| b. | the least common organisms on Earth | |
| c. | easily seen with the naked eye | |
| d. | stationary organisms | |
| e. | widespread on the planet |
1 points
QUESTION 10
A pine tree is a ____.
| a. | flowering plant | |
| b. | seedless plant | |
| c. | sporophyte | |
| d. | bryophyte | |
| e. | gametophyte |
1 points
QUESTION 11
It is thought that viruses may have originated from cells because ____.
| a. | of their small size | |
| b. | they are pathogens | |
| c. | they can only replicate within a host cell | |
| d. | they do not have organelles | |
| e. | of their genetic material |
1 points
QUESTION 12
After fertilization occurs in a flowering plant, the ovary becomes a(n) ____.
| a. | gametophyte | |
| b. | ovule | |
| c. | seed | |
| d. | fruit | |
| e. | endosperm |