How would you describe the movement of water into and out of the cell?
a) with energy, through a protein channel
b) with energy, through the bi-lipid layer
c) without energy, through a protein channel
d) without energy, through the bi-lipid layer

In which specialized organ of the plant would these cells most likely be found

In which situations is the principle of cross-cutting relationship useful in determining relative age?

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.