Which of the following is a substrate that lowers the activation energy? a) ion b)reactant c)catalyst d) substrate

All annelids and arthropods have a blank body plan . unlike annelids, arthropods also have blank . the circulatory system of annelids is blank , while circulatory system of arthropods is blank .

This connective tissue consists of large round densely packed cells with the nucleus pushed to one side.

Will ! a cell containing a 3% sucrose solution is placed into a beaker containing a 7% sucrose solution. assume the cell’s membrane is permeable to water, but not permeable to the sucrose. where will the water diffuse? explain.