A threadlike structure found in both animal and bacterial cells that aids in locomotion.

When water freezes into a solid, it’s molecules are packed together ________ densely than in a liquid state.

If an element has an atomic number of 6 and a mass number of 14, how many neutrons does it have? 

Nucleotides are linked together by a ____________ reaction between the _____________ of one nucleotide and the ____________ of the next nucleotide. 

The different populations of all the species in a given area make up a(n): 

Which functional groups are found in ALL amino acids?

A solution with a pH of 4 has _________ the concentration of H+ present compared to a solution with a pH of 5. 

Which type of cell junction prevents materials from passing in between cells?

You are looking at a cell under the microscope.  It contains a nucleus, a cell wall, chloroplasts, and a large central vacuole.  What type of cell is this most likely?

When an electron is transferred from one atom to the next, and the two atoms are then electrically attracted to one another, the type of bond is a(n) __________________ bond.