In the cells of many eukaryotic species, the nuclear envelope has to disappear to permit which of the following events in the cell cycle?

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#Question id: 11984

#10. Ecological Principles

The proximate causes of behavior are interactions with the environment, but behavior is ultimately shaped by

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#Question id: 6961

#5. Developmental Biology

Do HOX genes play a role in the development of C. elegans?

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#Question id: 10355

#6. System Physiology – Plant

The conversion of ammonium to amino acids requires two enzymes such as GS and GOGAT,

a) High levels of light and carbohydrate—conditions that stimulate plastid GS and Fd-GOGAT

b) Conditions of ample energy inhibit GS and GOGAT

c) The stimulation of GS and GOGAT, they favor nitrogen assimilation into glutamine and glutamate, compounds that are rich in carbon and participate in the synthesis of new plant materials

d) In energy-limited conditions inhibit GS and GOGAT

Which of the following statements about GS and GOGAT is correct?

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#Question id: 8856

#9. Diversity of Life Forms

Which of these can be observed in the mesohyl of various undisturbed sponges at one time or another?

1. amoebocytes

2. spicules

3. spongin

4. zygotes

5. choanocytes

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#Question id: 17285

#13. Methods in Biology

If the arithmetic mean of the data given below is 28, 

The median of the series is