Which of the following diseases can be considered among the most devastating of all time?
a. influenza
b. measles
c. chicken pox
d. herpes

Can you identify which of the following groups of organisms are, or are not, populations? a. the american bison (bison bison) and grey wolves (canis lupus) currently living in yellowstone national parkb. all of the rainbow trout (oncorhynchus mykiss that) that have ever lived in lake eriec. the group of american bison (bison bison) currently living in yellowstone national parkd. a group of calliope hummingbirds (selasphorus calliope) and a group of rufous hummingbirds (selasphorus rufus) living in the same new hampshire woodse. the northern cardinals (cardinalis cardinalis) living on opposite shores of lake champlain f. all of the whales currently living in the atlantic ocean off cape cod, massachusetts

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell