Which phylum of fungi contains the black mold that is often found on bread?
A. Ascomycotes
B. Zygomycotes
C. Deuteromycotes
D. Basidiomycotes

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

Which type of transport is responsible for oxygen entering into blood cells? a. vesicle b.passive c. facilitated d.active b.passive

How do all types of diffusion/passive transport actually ‘work’ without using even the smallest amount of cellular energy?