Which of the following is characteristic of most terrestrial biomes?

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#Question id: 24274

#Unit 2. Cellular Organization

Nucleosome DNA wraps around the histone protein 1.65 times, so create a writhe of –1.65 and so DLk should be -1.65. But when the change in linking number associated with each nucleosome was measured, the number was lower than this, approximately –1.2 for each nucleosome added. This discrepancy is referred to as the 

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#Question id: 15811

#Unit 5. Developmental Biology

In XX Drosophila, which gene is activated during the first 2 hours after fertilization?

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#Question id: 8841

#Unit 9. Diversity of Life Forms

Adaptive radiations can be a direct consequence of four of the following five factors. Select the exception.

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#Question id: 18221

#Unit 9. Diversity of Life Forms

In animal cells and in the meristem cells of land plants, the nuclear envelope disintegrates during mitosis. This disintegration does not occur in the cells of most protists and fungi. According to our current knowledge of plant evolution, which group of organisms should feature mitosis most similar to that of land plants? 

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#Question id: 7038

#Unit 5. Developmental Biology

During sea urchin development, micromeres retain their specification is to secrete an autocrine factor: