In eukaryotic cells, the message from the DNA must be removed from the nucleus before it can be read and used to make proteins. However, prokaryotic cells do not have a nucleus. What does this mean for protein production in these cells? Protein production can occur much faster since the cell does not have to get the message stored in the DNA out of the nucleus. Protein production does not happen because these kinds of cells do not have the material needed to make proteins Protein production is not needed because these kinds of cells do not need proteins Protein production happens much slower because these types of cells are much less complex than eukaryotic cells?

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.

true skin; another name for the dermis. lies directly beneath the epidermis and is often referred to as the true skin. outermost layer of epidermis, consisting of dead cells.