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IceJOKER [234]
2 years ago
8

 What can you do to verify its purity? 

Biology
1 answer:
Papessa [141]2 years ago
6 0

Answer:

To verify you have a pure sample use the sterile needle to isolate and grow on a new streak plate to make sure you see only one culture.

Explanation:

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The respiration of a suspension of yeast cells was measured by determining the decrease in pressure of the gas above the cell suspension. The apparatus was arranged so that the gas was confined to a constant volume, 16 cm3 and the entire pressure change was caused by the uptake of oxygen by the cells. The pressure was measured in a monometer, the fluid of which had a density of 1.034 g/cm3. The entire apparatus was immersed in a thermostat at 37. In a 30 minute observation period the fluid in the open side of the manometer dropped 37mm. Neglecting the solubility of oxygen in the yeast suspension, compute the rate oxygen consumption by the cells in mm3 of O2 (STP) per hour

Explanation:

did i get it

3 0
3 years ago
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7 0
3 years ago
Which scientists' ideas on geology influenced the theory of evolution during the 1800s?
never [62]

I am pretty sure it's A

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according to Brainly;"The xylem releases all its water, describes a phenomenon that occurs when we observe plants that wilt"

Explanation:

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