24. The product that honey bees produce and use it to seal cracks and repair their hives is : A. Honey
B. Wax
C. Propolis
D. Royal jelly

Because of its structure the cell membrane is known as a phospholipid ? a.bilayer b.molecule c.fluid d.barrier

Abird flies by moving its wings up and down. which two systems are most directly responsible for the movement of a bird's wings? a. skeletal and muscular systems b. respiratory and muscular systems c. skeletal and digestive systems d. respiratory and digestive systems

What is the difference between peptide and protein