For  nearly 200  years, biogeographers have  noted that  the  tropics  have  more terrestrial species than  temperate regions. Which of the following is NOT a plausible explanation for this pattern?

#Question id: 354

#Unit 1. Molecules and their Interaction Relevant to Biology

You have a freshly prepared 0.1 M sucrose (molecular mass 342) solution, which means ________.

#Question id: 349

#Unit 1. Molecules and their Interaction Relevant to Biology

Increased atmospheric CO2 concentrations might have what effect on seawater?

#Question id: 347

#Unit 1. Molecules and their Interaction Relevant to Biology

A beaker contains 100 milliliters (mL) of NaOH solution at pH = 13. A technician carefully pours into the beaker 10 mL of HCl at pH = 1. Which of the following statements correctly describes the result of this mixing?

#Question id: 291

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following types of non-covalent bonds or interactions is thought to be primarily responsible for driving the three-dimensional folding of a protein:

#Question id: 294

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following pairs of amino acids would you predict to only participate in Van der Waals interactions in the three dimensional folding of a protein:

#Question id: 295

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following pairs of amino acids could form a covalent disulfide bond to link two polypeptides together in a multi-subunit protein complex