Which structure is common to both gymnosperms and angiosperms? 

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#Question id: 8911

#XL - R Botany

The larvae of some insects are merely small versions of the adult, whereas the larvae of other insects look completely different from adults, eat different foods, and may live in different habitats. Which of the following most directly favors the evolution of the latter, more radical, kind of metamorphosis?

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#Question id: 3030

#XL - S Microbiology

Which of the following features of prokaryotic biology involves metabolic cooperation among cells?

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#Question id: 2140

#XL - S Microbiology

According to the current model for HIV infection, which of the following is not involved in the process of membrane fusion?

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#Question id: 15451

#XL - S Microbiology

T-cell dependent, B-cell activation require many signals except___

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#Question id: 10279

#XL - Q Biochemistry

Phosphohexose isomerase is one of the enzyme of glycolysis which catalyzes Glucose 6-phosphate to Fructose 6-phosphate, enzyme bind with the hexose in their active site by opening the structure. The ring opening and closing reactions are catalyzed by an active-site present amino acid such as