How many species of organisms are estimated to inhabit the Earth

Which units ate used to measure both velocity and speed? check all that apply

The blue particles in this image are able to cross the cell membrane through simple diffusion. how will they be transported? outside the cell inside the cell o a. the substances will move directly across the membrane from outside the cell to inside the cell. b. the substances will move through channels in the membrane proteins from outside the cell to inside the cell. o c. the substances will move through channels in the membrane proteins from inside the cell to outside the cell. o d. the substances will move directly across the membrane from inside the cell to outside the cell.

What part of the cell does 9 represent? a. cytoplasm b. lysosome c. ribosome d. centrosome