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Vladimir [108]
3 years ago
13

A swollen can of chicken soup is examined by public health laboratory and found to contain large numbers of gram negative h2s ba

cilli. which biochemical tests would you perform to identify the genus of the contaminant? justify your test choices.
Biology
1 answer:
astra-53 [7]3 years ago
8 0
Possible contaminate will be Proteus or Salmonella. To differentiate the two genera urease test can be accomplished. However, urease test, Proteus will produce a positive test result.

This test can be done to determine the ability of an organism to split urea. The principle of urease test is that urea is the product of decarboxylation of amino acid. Splitting of urea via hydrolysis will produce ammnonia and CO2. The CO2 produce allows the formation of bubbles.


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Photosynthesis requires a supply of CO2 as well as H2 O and sunlight. How do plants obtain these resources? (Hint: refer to plan
Triss [41]

Answer:

CO2 is supplied by mammals and other living animals exhaling, producing CO2 this is absorbed through their leaves, and stems

H2O is supplied by the water cycle, nearby rivers, oceans, creeks etc. This is soaked up through their roots. Excess sugars are also stored in the roots as food.

Sunlight is provided in the atmosphere and the chlorophyll absorbs this.

Explanation:

3 0
2 years ago
In your laboratory, you examine a vial of freshwater from a local pond. You notice several unfamiliar small (less than 1 millime
goblinko [34]

Answer:

First, we will see its body structure and collect more information about it. Second , we will see the mode of reproduction i. e. sexually or asexually.

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We will observe structure of the body and cell. If this organism is eukaryotic and no cell wall so we can say that it belongs to kingdom animalia. We also observed its mode of reproduction i. e. sexual reproduction or asexual reproduction such as fragmentation, binary fission etc.

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6 0
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1.) Compare the roles of oxygen and carbon dioxide in autotrophs and heterotrophs. Which organism is an oxygen consumer and carb
wariber [46]

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I hope I helped!

3 0
3 years ago
The Chihuahuan Desert of the United States and Mexico may be the most biologically diverse desert
Gemiola [76]

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Explanation:

The extensive grazing by the organisms in the Chihuahuan Desert which has made the ecosystem unstable has made the ecosystem incapable of sustaining the organisms that depend on it.

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4 0
2 years ago
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