Which mollusc group includes primarily sedentary animals that use mucus-coated gills to trap fine food particles

How does the molecular clock work? a. it analyzes the brain functionality of two different species.b. it examines and compares the physical characteristics of two different species.c. it illustrates relationships between two different species.d. it compares the number of mutations that exist in the dna of two different species.

Aflashlight battery is an example of a) potential energy b) kinetic energy c) thermal energy d) solar energy

Omg substrates with the same size and shape as the active site will bind to the enzyme. why is the key labeled the “bad” substrate?