which two of the following are the least dense materials rock, pillow, bottle of soda or a loaf of bread

Where does photosynthesis occur in a leaf? state which organelles carry out photosynthesis and which type or types of leaf cells have this organelle?

Injury localized to the hypothalamus would most likely disrupt:a. Regulation of body temperature. b. Short term memory. c. Executive functions such as decision making. d. Sorting of sensory information.

Contraction of the diaphragm decreases the volume of the thoracic cavity. a. True b. False

Part of an anoles neck that it waves around during mating season

Mutations always happen when DNA has been damaged in some way. True or False?

A child with the genes for PKU (a recessive disorder that leads to brain damage because proteins aren't digested properly) is raised to adulthood under a strict low-protein diet that prevents the gene from being activated.

What molecule is the electron acceptor of glycolysis

Coordinating movement and our scene of balance is a function of the

How do axial filaments differ from regular bacterial flagella? a. How do axial filaments differ from regular bacterial flagella? b. They do not function in cell movement. c. They do not rotate. d.

Which of the following is NOT used by scientists to predict future weather? A. analysis of weather maps B. analysis of lunar phases and star positions C. knowledge of how weather patterns tend to move D.