Some molecules are too big to pass through the phospholipid bilayer of the cell membrane. these molecules need to pass through that are embedded in the cell membrane.

Some plants rely on the wind to reproduce an example is it’s important for plants to use the forces of nature to reproduce because 1. 1a white tuft of dandelion seeds 2a spiked burrs surrounding seeds 3a hard shell on a walnut? 2. 1b require pollination to reproduce 2b reproduce only asexually 3b cannot move about freely?

Indica el nombre y la fucion de los vasos sanguineos que entran y salen de los riñones

The similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between organisms in both locations?