which primary producers can be found in winogradsky columns? briefly explain their habitats and niches in the winogradsky column? (how are they primary producers, what role in biogeochemical recycling do they play, and where are they found in the column?

answer

watching

469

views

For unlimited access to Homework Help, a Homework+ subscription is required.

You have 0 free answers left.
Get unlimited access to 3.8 million step-by-step answers.

Get unlimited access

Already have an account? Log in

Jamar FerryLv2

14 Apr 2019

Unlock all answers

Get 1 free homework help answer.

Already have an account? Log in

Related questions

1. Whereas Thiospirillum would ___________, Pelodictyon would__________.
a. be found in region c of the Winogradsky column, be found inregion b of the
Winogradsky column
b. be found in Volume 2 of Bergeyâs Manual of SystematicBacteriology, be found
in Volume 1 of Bergeyâs Manual of Systematic Bacteriology
c. contain internal sulfur storage granules, form sulfur storagegranules outside the
cell.
d. All of the above
e. A and C

2-The purple nonsulfur bacterium Rhodospeudomonas generallylives
photoheterotrophically in the Winogradsky column. Trent isinterested in the resilience of this bacterium and so he take theâtime shareâ Winogradsky column home, agitates it thoroughly andleaves it for several weeks in a dark room. What happens toRhodospeudomonas?
a. The cells die because they lack an energy source.
b. The cells become colorless and livechemoheterotrophically.
c. The cells form endospores.
d. The cells begin to employ anaerobic respiration.

3-Just then, Nikki and Jeslyn spy some tourists who have arrived atlower geyser basin in a snow coach. Some of the tourists havejumped out and begun drawing in the microbial matt with sticks.Nikkie and Jeslyn decide to educate these tourists about themicrobial composition of the area. All of the following are thingsthat they might tell the tourists EXCEPT
a. Certain microoroganisms in this area produce enzymes that enableamplification
of DNA.
b. Some of the bacteria in this area are capable of converting N2gas to ammonia.
c. Some of the bacteria in this area may form resting structuresthat are resistant to
desiccation.
d. Many of the bacteria in this area are oxygenic phototrophs andthus they provide
the O2 that we need in order to breath.
e. The bacteria that comprise this matt are in the genusNitrosomonas and they are
nitrite oxidizers.

4. While Nikki and Jeslyn are talking with the tourists, Kyle andAaron seize the moment to take a small sample of the microbial mattfrom the stick the tourists were using. They know they will be ableto isolate the enzyme nitrogenase from this sample.Nitrogenase
a. would be most active in oxygenic phototrophs when photosystem IIis being used.
b. would be more active in Nostoc heterocysts than in other cellsof a trichome.
c. would be more active in cells in the upper 1/8th inch of themicrobial mat in
Yellowstoneâs upper and lower geyser basin.
d. synthesizes starch in akinetes.

5. Rather than traveling to snowy Yellowstone, Kristina, Courtneyand Sarah N. have
decided to travel to the Utah Canyonlands to observe thecryptobiotic crust. In Arches
National Monument, they see some tourists âbusting the crustâ. Theystop the tourists and explain that all of the following areimportant functions of the crust EXCEPT
a. âThe anoxygenic phototrophs within this cryptobiotic crustconsume toxic gases
(such as H2S) from our atmosphere thus reducing environmentalpollution.â
b. âWhen it rains, the cyanobacteria in that crust swell and takeon water which
benefits everything in the soil.â
c. âThe cryptobiotic crust (that you just stepped on) preventserosion.â
d. âThe cyanobacteria within this crust âfixâ nitrogen thus formingforms of nitrogen
upon which all life depends.â

11. As energy flows through the food web in an ecosystem, the amount of energy that is transferred from one trophic level to the next trophic level increases. stays the same. decreases. may increase or decrease, depending upon the system.

12. Autotrophs are organisms that obtain energy by breaking down tissues of organisms that have died. harness external energy sources to produce complex chemical compounds. depend directly on primary producers for their energy and nutrients. eat other autotrophs to obtain energy.

13. Which of the following gives the correct order for energy flow through an ecosystem? primary producers â secondary producers â tertiary producers primary consumers â primary producers â secondary producers secondary consumers â primary consumers â primary producers primary producers â primary consumers â secondary consumers

14. Which one of the following aspects of plant biology is not directly involved in maintaining an adequate supply of water for the entire plant? phloem roots xylem transpiration pull

15. Which structure(s) do most plants use to acquire the energy that they need for cellular processes? the roots the leaves the stem

1. Which of the four major biogeochemical cycles aresignificantly affected by human activities?

Water only
None of them
Nitrogen and phosphorus only
carbon only
All of them (water, carbon, nitrogen, and phosphorus)

2. Physical processes like evaporation and condensation are themain driving forces behind the _________ cycle.

phosphorus
water
carbon
nitrogen

3. What is the source of energy that supports the growth of mostproducers?

Calories in food (organic matter)
Carbohydrates and lipids
Heat
Sunlight

4. Which of the following are involved in biogeochemicalcycles?

Living producers
Living consumers
Decomposers and detritivores
Land, air, and water
All of the above

5. Turkey vultures soar high in the sky until they detect deadanimals with their supremely sensitive noses. They then swoop downand eat the dead flesh. Which of the following terms accuratelydescribe turkey vultures? Select all that apply.