Which structure is composed of phospholipids and regulates the movement of substances in and out of cells?

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#Question id: 21257

#Unit 12. Applied Biology

Lysine is a member of the_______________of amino acids.

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#Question id: 11068

#Unit 7. System Physiology – Animal

A patient has a dead space of 150 ml, functional residual capacity of 3 L, tidal volume of 650 ml, expiratory reserve volume of 1.5 L, total lung capacity of 8 L, and respiratory rate of 15 breaths/min. What is the residual volume?

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#Question id: 4431

#Unit 3. Fundamental Processes

Which of the following transcription factors enhance transcription without binding to DNA? 

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#Question id: 28494

#Unit 5. Developmental Biology

 Which of the following is the major active factor in the ZPA?

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#Question id: 12807

#Unit 10. Ecological Principles

If Earth's axis of rotation suddenly became perpendicular to the plane of its orbit, the most predictable effect would be