What type of organisms convert nitrates and nitrites into nitrogen gas?

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#Question id: 17220

#XL - T Zoology

Which of the following occurs when certain adaptive hormones are released and cause changes in the structure and chemical composition of the body?

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#Question id: 185

#XL - T Zoology

Match the amino acids with their correct functional group:

1. Indole	i. Histidine
2. Imidazole	ii. Tryptophan
3. Thiol	iii. Cysteine
4. Pyrrolidine	iv. Proline

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#Question id: 12159

#XL - R Botany

You are given the task of designing an aerobic, mixotrophic protist that can perform photosynthesis in fairly deep water (e.g., 250 m deep), and can also crawl about and engulf small particles. With which two of these structures would you provide your protist?

1. hydrogenosome

2. apicoplast

3. pseudopods

4. chloroplast from red alga

5. chloroplast from green alga

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#Question id: 3051

#XL - S Microbiology

You have 10^10 cell/L of bacterial stock solution. To prepare 1 liter of growth medium containing 1000 bacteria, the volume in microlitre of this stock solution that should be added is

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#Question id: 92

#XL - Q Biochemistry

Monosaccharide derivatives in which an amino group replaces one of the hydroxyl groups may have important roles in