Cells express a limited number of genes at a time. This can result in the specialization of cells within organisms. This understanding best supports which of the following statements? a
The expression of genes is a result of random chance
b
Only multicellular organisms have useful, unexpressed genes
c
Certain genes cannot be expressed by eukaryotic cells
d
The process of expressing genes is controlled by the cell

Diffusion and osmosis are forms of passive transport

Temperatures in ponds and lakes vary by season. select the best answer from the choices provided t f

In the united states there are strict fishing seasons and limits, but not all countries enforce similar laws. in bangladesh there are few if any fishing restrictions. what might be the reason for less restrictions in smaller countries like bangladesh? a) the united states is the only country worried about overfishing. b) the united states wants to limit the supply of fish to increase the price. c) bangladesh and smaller countries have an unlimited supply of fish in their coastal waters. d) small countries, such as bangladesh, are practicing subsistence fishing, taking only the fish needed to survive.