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postnew [5]
3 years ago
14

1. A bacterium that can use NO3 - as a terminal electron acceptor is found to contain sulfur granules. This cell . . . A. reduce

s sulfur B. oxidizes NO3 - C. is a nitrifying bacterium D. is a chemotroph E. cannot produce a PMF directly
Chemistry
1 answer:
Colt1911 [192]3 years ago
5 0

Answer: Option D

Explanation:

Chemotrophs can be defined as the organism which has the ability to get energy by the oxidation of electron donors present in the nearby environments.

These molecules in the environment can be organic or inorganic.These bacteria are usually called as thiobacillus denitrificans.

These bacteria reduce the nitrate into nitrite and the energy source for these bacteria is thiosulfate(sulfur).

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Use the definition of molarity to calculate the concentration of 12.34 g of CaSO4 completely dissolved in water, with a solution
Ede4ka [16]

Answer:

[CaSO₄] = 36.26×10⁻² mol/L

Explanation:

Molarity (M) → mol/L → moles of solute in 1L of solution

Let's convert the volume from mL to L

250 mL . 1L/1000 mL = 0.250L

We need to determine the moles of solute. (mass / molar mass)

12.34 g / 136.13 g/mol = 0.0906 mol

M → 0.0906 mol / 0.250L = 36.26×10⁻² mol/L

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Answer:

The correct answer is - may not be typical, and participant burden.

Explanation:

The 24-hour recall is nothing but a retrospective method of diet assessment. In this method, an individual is interviewed about his or her diet consumption during the last 24 hours.

The disadvantages or limitations of this method include the inability of a single day's intake to describe the typical diet, multiple recalls to intake, cost and administration time; participant burden, have to recall to reliably estimate usual intake.

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3 years ago
What do the 14th Amendment and the Civil Rights Act of 1866 have in common?A. They were ways Congress sought to guarantee blacks
ehidna [41]
A. They were ways Congress sought to guarantee blacks the full rights of citizenship.
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What type of energy is a furnace and using a telephone? pls help
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Answer:

hope this helped

Explanation:

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5 0
2 years ago
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IgorLugansk [536]

Answer:

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Explanation:

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3 years ago
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