Levels Tought:
Elementary,Middle School,High School,College,University,PHD
Teaching Since: | Apr 2017 |
Last Sign in: | 4 Weeks Ago, 3 Days Ago |
Questions Answered: | 7559 |
Tutorials Posted: | 7341 |
BS,MBA, PHD
Adelphi University/Devry
Apr-2000 - Mar-2005
HOD ,Professor
Adelphi University
Sep-2007 - Apr-2017
QUESTION 1
1.     ​What is the function of bacterial flagella?
|
a. |
​assisting in protein synthesis |
|
b. |
​cell membrane construction |
|
c. |
​organization of the nuclear material |
|
d. |
​energy production |
|
e. |
​locomotion |
4 points  Â
QUESTION 2
1.     ​____ allow bacteria to join together to transfer genes.
|
a. |
​Cilia |
|
b. |
​Pili |
|
c. |
​Spores |
|
d. |
​Capsules |
|
e. |
​Flagella |
4 points  Â
QUESTION 3
1.     ​____ may have been the ancestors of cellular life.
|
a. |
​Lipid globules |
|
b. |
​Pseudocells |
|
c. |
​Protocells |
|
d. |
​Prokaryotic cells |
|
e. |
​Circular RNA |
4 points  Â
QUESTION 4
1.     ​The ____ form of Plasmodium is transferred to humans through the bite of an infected mosquito.
|
a. |
​spore |
|
b. |
​cyst |
|
c. |
​merozoite |
|
d. |
​gametocyte |
|
e. |
​sporozoite |
4 points  Â
QUESTION 5
1.     ​Protists that are part of a(n) _____ are integrated with other cells, but remain self-sufficient.
|
a. |
​pathogenic life cycle |
|
b. |
​colonial organism |
|
c. |
​multicellular organism |
|
d. |
​contractile vacuole |
|
e. |
​algal bloom |
4 points  Â
QUESTION 6
1.     Lichens are an important component in many ecosystems because they ____.​
|
a. |
​are food for primary producers |
|
b. |
​form a mutualistic relationship with the roots of most plants |
|
c. |
​are primary producers |
|
d. |
​trap small predators with their hyphae |
|
e. |
​help form soil by breaking down rocks |
4 points  Â
QUESTION 7
1.     The structure that consists of an embryo sporophyte and food to support it enclosed within a protective coat is referred to as a ____.​
|
a. |
​zygote |
|
b. |
​spore |
|
c. |
​seed |
|
d. |
​fruit |
|
e. |
​gamete |
4 points  Â
QUESTION 8
1.     Many tropical ferns live on other plants without withdrawing nutrients from them. These ferns are said to be ____.​
|
a. |
​epiphytes |
|
b. |
​saprophytes |
|
c. |
​pathogens |
|
d. |
​bryophytes |
|
e. |
​parasites |
4 points  Â
QUESTION 9
1.     The female part of a flower is known as the ____.​
|
a. |
​anther |
|
b. |
​stamen |
|
c. |
​endosperm |
|
d. |
carpel​ |
|
e. |
​megaspore |
4 points  Â
QUESTION 10
1.     If fertilization occurs in seed plants, a seed will develop from the ____.​
|
a. |
​ovule |
|
b. |
​zygote |
|
c. |
​pollen grain |
|
d. |
​gametophyte |
|
e. |
​ovary |
QUESTION 1
1.     ​Anaerobic methanogens produce ____.
|
a. |
​hydrogen sulfide |
|
b. |
​carbon monoxide |
|
c. |
​ammonia sulfide |
|
d. |
​methane |
|
e. |
​carbon dioxide |
4 points  Â
QUESTION 2
1.     ​Flagellated protozoans possess a ____, layer of elastic proteins just beneath the plasma membrane.
Â
Flagellated protozoans possess a ____, layer of elastic proteins just beneath the plasma membrane.
|
a. |
​capsule |
|
b. |
​cilium |
|
c. |
​pillus |
|
d. |
​flagellum |
|
e. |
​pellicle |
4 points  Â
QUESTION 3
1.     ​Both mitochondria and chloroplasts are thought to have evolved by the process of ____.
|
a. |
​nitrogen fixation |
|
b. |
​decomposition |
|
c. |
​endosymbiosis |
|
d. |
​transformation |
|
e. |
​viral reassortment |
4 points  Â
QUESTION 4
1.     ​____ bacteria are found inside the roots of legumes, where they receive _____ from the host plant.
|
a. |
​Nitrogen-fixing; carbohydrates |
|
b. |
​Thermophilic; water |
|
c. |
​Methane-producing; minerals |
|
d. |
​Cyanobacteria; minerals |
|
e. |
​Halophilic; carbohydrates |
4 points  Â
QUESTION 5
1.     ​The appearance of _____ on Earth due to the action of photosynthetic bacteria occurred about 2.7 billion years ago.
|
a. |
​oxygen |
|
b. |
​carbon dioxide |
|
c. |
​ATP |
|
d. |
​water |
|
e. |
​iron |
4 points  Â
QUESTION 6
1.     Fungal cell walls consist primarily of ____.​
|
a. |
​cellulose |
|
b. |
​lignin |
|
c. |
​chitin |
|
d. |
​protein |
|
e. |
​pectin |
4 points  Â
QUESTION 7
1.     The most common mode of pollination in angiosperms occurs by _____.​
|
a. |
​insects |
|
b. |
​water |
|
c. |
​wind |
|
d. |
​humans |
|
e. |
​birds |
4 points  Â
QUESTION 8
1.     In flowering plants, pollen grains form in the flower's male parts called ____.​
|
a. |
​carpels |
|
b. |
​endosperms |
|
c. |
​stamens |
|
d. |
​megaspores |
|
e. |
​anthers |
4 points  Â
QUESTION 9
1.     ​After fertilization occurs in a flowering plant, the ovary becomes a(n) ____.
|
a. |
​endosperm |
|
b. |
​fruit |
|
c. |
​gametophyte |
|
d. |
​ovule |
|
e. |
​seed |
4 points  Â
QUESTION 10
1.     Gymnosperms are seed plants that produce seeds ____.​
|
a. |
​on the surface of ovules |
|
b. |
​on their waxy needles |
|
c. |
​inside ovules |
|
d. |
​inside fruits |
|
e. |
​from a microspore |
QUESTION 1
1.     ​____ allow bacteria to join together to transfer genes.
|
a. |
​Cilia |
|
b. |
​Flagella |
|
c. |
​Pili |
|
d. |
​Spores |
|
e. |
​Capsules |
4 points  Â
QUESTION 2
1.     ​Foraminifera are predatory protists with a ____ shell, which is the ultimate source of _____.
|
a. |
​chitin; ozone |
|
b. |
​calcium carbonate; chalk and limestone |
|
c. |
​carbon; carbon dioxide |
|
d. |
​bicarbonate; chalk and limestone |
|
e. |
​silicon; oxygen |
4 points  Â
QUESTION 3
1.     ​The ____ form of Plasmodium is transferred to humans through the bite of an infected mosquito.
|
a. |
​merozoite |
|
b. |
​spore |
|
c. |
​sporozoite |
|
d. |
​gametocyte |
|
e. |
​cyst |
4 points  Â
QUESTION 4
1.     ​It is thought that viruses may have originated from cells because ____.
|
a. |
​of their genetic material |
|
b. |
​they are pathogens |
|
c. |
​of their small size |
|
d. |
​they can only replicate within a host cell |
|
e. |
​they do not have organelles |
4 points  Â
QUESTION 5
1.     ​Protists that are part of a(n) _____ are integrated with other cells, but remain self-sufficient.
|
a. |
​algal bloom |
|
b. |
​colonial organism |
|
c. |
​multicellular organism |
|
d. |
​pathogenic life cycle |
|
e. |
​contractile vacuole |
4 points  Â
QUESTION 6
1.     In seed plants, which develops into a female gametophyte?​
|
a. |
​sporophyte |
|
b. |
​microspore |
|
c. |
megasporangium ​ |
|
d. |
​microsporangium |
|
e. |
​megaspore |
4 points  Â
QUESTION 7
1.     Gymnosperms are seed plants that produce seeds ____.​
|
a. |
​inside ovules |
|
b. |
​on their waxy needles |
|
c. |
​from a microspore |
|
d. |
​on the surface of ovules |
|
e. |
​inside fruits |
4 points  Â
QUESTION 8
1.     Lichens are an important component in many ecosystems because they ____.​
|
a. |
​trap small predators with their hyphae |
|
b. |
​are primary producers |
|
c. |
​form a mutualistic relationship with the roots of most plants |
|
d. |
​are food for primary producers |
|
e. |
​help form soil by breaking down rocks |
4 points  Â
QUESTION 9
1.     The structure that consists of an embryo sporophyte and food to support it enclosed within a protective coat is referred to as a ____.​
|
a. |
​spore |
|
b. |
​seed |
|
c. |
​fruit |
|
d. |
​gamete |
|
e. |
​zygote |
4 points  Â
QUESTION 10
1.     All fungi are _____.​
|
a. |
​multi-cellular |
|
b. |
​photosynthetic |
|
c. |
​heterotrophic |
|
d. |
​unicellular |
|
e. |
​autotrophic |
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