Which statement is true a. bones provide shape to the body
b. bones are composed of a single layer
c. bones are organ systems
d. bones help the heart pump blood

Predict the results of a two base insertion or deletion in a strand of dna that codes for a protien, how does this differ from a three base insertion or deletion?

Which process of living things produces water that enters the water cycle

The human body needs energy in order to carry out life processes such as breathing. where does the body get this energy? a. from eating food b. from learning about new things c. from lying in the sun d. from sleeping