Which of the following changes between trophic levels would have the highest energy conversion efficiency? a) producer to primary consumer b) primary consumer to secondary consumer c) secondary consumer to tertiary consumer d) none of the above

Diffusion and osmosis are forms of passive transport

Most crimes involve some evidence relating to the human body; for that reason, what related science is frequently used in forensic investigations? a)psychiatry b)physics c)botany d)biology

What are the two causes of density in deep current waters? a. salinity (how much salt) of the water and high temperaturesb. salinity (how much salt) of the water and low temperatures c. oxygen content of the water and high temperatures. d. oxygen content of the water and low temperatures