The channel protein that accounts for why water can cross a membrane more quickly than expected is

On a floor there are several 1-4 mm elongated drops leading away from a body lying in a pool of blood. the the forward wall there is a sigzag pattern and on the walls to the right side there is a linear patter

How far down have geologists drilled holes ? (science) a: 3.8 km b: 12 km c: 100 m d: 1200 km

Which of the following organisms are capable of self-fertilization? a. plants b. tigers c. humans