a drug that has been used efficiently against viruses, works by deactivating the active site of certain viral enzymes. the virus uses the protease enzyme to destroy the host cell proteins to open the cell with the active site blocked, the virus cannot grab on to and destroy the cells the drug is called an.

Flock x flock y flock z total pieces of food eaten (from previous page) 147 93 60 food percentage* % % % simulated number of birds in flock for 3rd generation** * divide each flock's total pieces of food by 300, the total number of pieces of food eaten. ** multiply the food percentage for each flock by the total number of birds (30).

Ais a landform that is formed at the mouth of a river from the deposition of sediment carried by the river as the water flows.

In a certain plant, yellow leaves are dominant (y) and red leaves are recessive (y). a plant with genotype yy and a plant with yy are crossed. if they have four offspring, how many would you predict would have red leaves? a: 1b: 0c: 3d: 2